Petroleum, gas or coke industries and technical gases containing carbon monoxide and fuels and lubricants and peat (C10)

C   Chemistry; metallurgy(315514)
C10            Petroleum, gas or coke industries; technical gases containing carbon monoxide; fuels; lubricants; peat(16534)

ethod of regulating the volume flow of a coal-kerozine suspension and a device for manufacturing a burned coal // 2628524
FIELD: mining engineering.SUBSTANCE: invention describes a method for controlling the volumetric flow rate of a coal-kerosene suspension in which, during the separation of the solid and liquid phases by feeding the dehydrated coal-kerosene suspension to a centrifugal separator of the decanter type and separating the coal-kerosene suspension into a solid fraction and a liquid fraction, the target electric current fed to the engine to rotate it and drive the screw conveyor of the centrifugal separator of the decanter type is determined such that the liquid level In the tank for a coal-kerosene suspension fed to a centrifugal separator of the decanter type, it can take a constant value; the target opening degree value is determined based on the difference between the target electric current value and the actually measured value of the electric current supplied to the motor; and the degree of opening of the flow control valve, which is located in the middle of the feed line for introducing the coal-kerosene slurry into the centrifugal separator of the decanter type, is adjusted depending on the target degree of opening. Also, the options for ways to regulate the volume flow coal-oil suspensions and devices to perform these techniques are described.EFFECT: ability to effectively prevent overloads and mechanical damages of a centrifugal separator of the decanter type or to reduce the quality of separation of the solid and liquid phases, the ability to stabilise the process of obtaining upgraded brown coal.6 cl, 5 dwg

ethod for producing moulded solid fuel // 2628523
FIELD: chemistry.SUBSTANCE: invention describes a method for producing moulded solid fuel, comprising: a pulverization stage for pulverizing low-grade coal; a stirring stage for mixing the pulverized low-grade coal and the oil solvent to form a slurry; a dewatering stage for heating and dewatering the slurry to form an anhydrous slurry; a stage for separating solid and liquid phases to separate the oil solvent from the dehydrated slurry to form a precipitate; a drying stage for heating the precipitate to further separate the oil solvent from the precipitate to produce powdered coal of enhanced quality; and a moulding stage for compression moulding the powdered coal of improved quality by means of a moulding device without adding and/or mixing with a bonding material, in which at the stage of forming the moulding device on the surface, a cooling substance is pulverized to cool the surface and thus the surface temperature of the moulding device is maintained at 100°C or below.EFFECT: producing moulded solid fuel from low-grade coal, having high strength.6 cl, 4 ex, 1 tbl, 2 dwg

anufacture method of moulded solid fuel // 2628522
FIELD: oil and gas industry.SUBSTANCE: manufacture method of the briquetted solid fuel includes the following steps: spraying of the low quality coal to produce the pulverized low quality coal; mixing with the oil solvent to form the dewatered suspension; heating and thereby dewatering of the suspension to form the dewatered suspension; separation of the oil solvent from the dewatered suspension by liquid-solid body separation to obtain the cake; heating and thereby drying the cake, so to separate additionally the oil solvent from the cake and to obtain the refined coal in the powder form; mixing of the refined coal with the coal to control the properties in the powder form, in order to control the properties of the refined coal and thereby to obtain the feedstock for briquetting, containing the coal to adjust the properties in the amount from 5 to 70% wt %, based on the total weight of the briquetted feedstock, the mentioned carbon to control the properties, having the free bulk density 0.6 kg/l or more and the natural repose angle of 40° or less, and the feedstock briquetting for the briquetting under the pressure to produce the briquetted solid fuel in the form of briquettes.EFFECT: production of briquetted solid fuel from low-quality coal with high strength.4 cl, 1 dwg, 9 ex, 2 tbl

Systems and methods for renewable fuel // 2628521
FIELD: chemistry.SUBSTANCE: invention discloses a fuel that contains a catalytic cracking product of a fluid comprising a fuel mixture comprising: i) 93-99.95 wt % of the oil fraction material and ii) 0.05-7 wt % of the raw material of the non-enriched renewable petroleum fuel, where the non-enriched renewable petroleum fuel comprises a product of grinding and non-catalytic fast heat treatment of the cellulosic biomass with conversion of, at least, 60 wt % of cellulosic biomass into non-enriched renewable petroleum fuels, and where the non-enriched renewable petroleum fuel has a carbon content of, at least, 40 wt % on a dry basis and oxygen content in the range of 20-50 wt % on a dry basis and water content in the range of 10-40 wt %. A method of obtaining fuel is also disclosed.EFFECT: co-processing of thermally obtained biomass products with petroleum raw materials in various refining operations.20 cl, 20 dwg, 11 tbl, 3 ex
Grease lubricant composition // 2628512
FIELD: chemistry.SUBSTANCE: grease lubricant composition comprises base oil, thickener and poly (meth)acrylate containing hydroxyl groups, wherein said thickener is urea compound obtained by reacting between isocyanate and primary amine, and said poly(meth)acrylate containing hydroxyl groups is copolymer comprising, as composite monomers, alkyl(meth)acrylate containing C1-20 alkyl group, and vinyl monomer containing a hydroxyl group.EFFECT: high wear resistance.13 cl, 1 tbl, 10 ex

Integration of resid hydrocracking and hydrocleaning // 2628509
FIELD: oil and gas industry.SUBSTANCE: one of the process variants includes the following steps: contacting the hydrocarbon residue and hydrogen fraction with the first hydroconversion catalyst in the first fluidized bed hydroconversion reactor system; extracting the first outlet stream from the first fluidized bed hydroconversion reactor system; contacting of the first outlet stream and hydrogen with the second hydroconversion catalyst in the second hydroconversion reactor system; extraction of the second outlet stream from the second hydroconversion reactor system; contacting of the second outlet stream and hydrogen with the third hydroconversion catalyst in the second fluidized bed hydroconversion system; extracting the third outlet stream from the second fluidized bed hydroconversion reactor system; fractionating of the third outlet stream from the second fluidized bed hydroconversion reactor system to recover one or more hydrocarbon fractions, including the vacuum fraction of the hydrocarbon residue.EFFECT: invention makes it possible to achieve high hydrocarbon processing using a simplified technology.20 cl, dwg 4
Processing method of heavy vacuum gasoil // 2628508
FIELD: oil and gas industry.SUBSTANCE: residual oil vacuum distillation product, the heavy vacuum gasoil, is subjected to cryolysis, i.e. freezing, at the certain process conditions with subsequent distillation of light fuel fractions. The processing method of vacuum gasoil is included in its physical separation into fractions, where in order to increase the most valuable light fuel fractions yield, the fuel oil vacuum distillation product -vacuum gasoil is subjected to cryolysis at the temperature of not higher than -35°C for at least 20 hours with the preliminary introduction in it the donor additive (water) at least 0.5% to the gasoil weight. The invention is the alternative to the catalytic cracking process, since the process yield of the light fuel fractions at the heavy vacuum gasoil cryolysis treatment is not less than the yield, obtained by catalytic cracking.EFFECT: complete bleeding of the valuable light fuel fractions from the oil.4 ex, 1 tbl

Advanced coal gasification // 2628390
FIELD: oil and gas industry.SUBSTANCE: gasifier for producing synthesis gas comprises an upper gasification zone in a fluidized bed, which has inlets to allow the introduction of materials selected from the group consisting of carbon, fine carbon particles of greater than 75 micrometers and less than 10 mm in size, gas and steam in fluid communication through a venturi nozzle with the lower gasification zone in co-current which has inlets to allow the introduction of materials selected from the group consisting of coal, fine coal particles of less than 75 micrometers in size, gas and steam.EFFECT: increased efficiency of gasification, lower costs.16 cl, 1 dwg

ethod of obtaining hydrocarbons with loading the catalyst in continuous regime // 2628079
FIELD: chemistry.SUBSTANCE: invention relates to a process of production of hydrocarbons in a continuous mode starting from a synthesis gas in the presence of a catalyst, comprising a synthesis step in which the synthesis gas is reacted with a catalyst in a Fischer-Tropsch synthesis reactor (4). The process is characterized in that, simultaneously with the synthesis step, the following successive steps are carried out: a) charging the catalyst precursor containing cobalt oxide to a recovery reactor (2) for this purpose; b) reducing, in the reduction reactor, the catalyst precursor charged in step a) by contacting a reducing gas containing hydrogen (H2) And/or carbon monoxide (CO); c) feeding the catalyst reduced in step b) to the synthesis reactor (4). The introduction of the reduced catalyst into the synthesis reactor (4) is carried out via a feed line (9) of the reduced catalyst, connecting the reduction reactor (2) to the synthesis reactor (4).EFFECT: use of the present invention makes it possible to reduce the frequency of reactor shutdowns and quickly go into operation after a stop, and to exclude the stage of protection of the freshly reduced catalyst.15 cl, 2 ex, 4 tbl, 1 dwg
Indicators and method of marking liquids // 2628075
FIELD: chemistry.SUBSTANCE: invention discloses a method of marking a liquid hydrocarbon which is selected from diesel fuel, gasoline fuel and solvent, comprising the step of adding to mentioned fluid an indicator compound which is a compound of formula (I), wherein each A substituent is independently selected from the group consisting of (i) phenyl group, (ii) a phenyl group substituted by one or more halogen atoms, aliphatic or halogenated aliphatic group, (iii) partially or fully halogenating alkyl group, or (iv) a linear, branched or cyclic C1-C20 alkyl group, and each group B independently is selected from the group consisting of (i) phenyl group, (ii) an unsubstituted phenylmethyl group, (iii) substituted phenyl or phenylmethyl group in which the benzene ring is substituted by at least one substituent selected from the group consisting of fluorine atoms, a partially or fully halogenated alkyl group and a linear, branched or cyclic C1-C20 alkyl group, or (iv) a linear, branched or cyclic C1-C20 alkyl group, wherein the indicator compound is added to hydrocarbon liquids in a concentration of 1 mcg/l to 1000 mcg/l. Also disclosed is a liquid composition comprising a mixture of a hydrocarbon liquid and from 1 mcg/l to 10 mcg/l of indicator compounds of formula (I).EFFECT: increasing the stability of the indicator to remove hydrocarbon liquids.13 cl, 2 tbl, 4 ex

Catalytic cracking catalyst containing ree-containing zeolite, and how to obtain it // 2628071
FIELD: chemistry.SUBSTANCE: invention relates to catalytic cracking catalyst that contains zeolite containing rare earth element, and to the way it was received, and catalytic cracking catalyst contains the active ingredient of cracking, optional mesoporous aluminosilicate material, clay and resin, which specified the active component cracking contains, consists essentially of or consists of REE-containing Y-zeolite, optional other Y-zeolite MFI-and optional structured zeolite with the specified REE-containing Y-zeolite has a content of rare earth element in calculating the 10-25 wt % of Rare-earth element oxide, for example, 11-23 wt %, cell size 2.440-2.472 nm 2.450-2.470 nm, for example, 35-65% crystallinity, e.g. 40-60%, Si/Al atomic ratio in the framework is 2.5-5.0 and the product of the ratio of the intensity I1 of the peak at 2θ=1.8±0.1° to the intensity of the I2 peak at 2θ=12.3±0.1° (I1/I2) on the roentgenogram of the zeolite and the mass percentage of the rare earth element in terms of the oxide of the earth element in the zeolite is greater than 48, for example, more than 55. Method of obtaining the above catalytic cracking catalyst includes: obtaining a suspension containing the active ingredient of cracking, optional mesoporous aluminosilicate material, clay and resin; and drying spray received suspensions where the active component cracking contains, consists essentially of or consists of REE-containing Y-zeolite, optional other Y-zeolite and optional structured zeolite MFI-where the REE-containing Y-zeolite has a content of rare earth element in the calculation of oxide of rare-earth element 10-25 wt %, for example 11-23 wt %, the cell size 2.440-2.472 nm 2.450-2.470 nm for example, 35-65% crystallinity, e.g. 40-60%, Si/Al atomic ratio in the framework is 2.5-5.0 and the product of the ratio of the intensity I1 of the peak at 2θ=11.8±0.1 to the intensity of the I2 peak at 2θ=12.3±0.1° on the x-ray diffraction pattern of the zeolite and the mass percentage of the rare-earth element in calculation of the oxide of the rare-earth element in the zeolite is greater than 48, for example, more than 55.EFFECT: getting REE-containing Y-zeolite, which has special physico-chemical characteristics, better use of rare earth element and stability structure of zeolite.24 cl, 80 ex, 12 tbl, 2 dwg
Catalysts // 2628068
FIELD: chemistry.SUBSTANCE: method provides the substrate material of titanium-bearing catalyst by means of (i) the substrate material contact catalyst with organic compound of titanium. Catalyst substrate material is selected from the group consisting of (a) the predecessor of the substrate catalyst containing aluminium connection that turns into a substrate of catalyst in the form of one or more aluminium oxides on ignition, and (b) substrate catalyst represents the aluminium oxide in the form of one or more aluminium oxides. And when this organic compound of titanium is a compound of titanium, which is associated with at least one oxygen atom of at least one organic group through communication, or (ii) joint hydrolysis of a hydrolysable organic titanium compound and Al (OR")3, and the titanium-containing support material of the catalyst then contains Al. The hydrolyzable organic titanium compound is a titanium compound in which titanium is bonded to at least one oxygen atom of at least one organic group through a bond. All of R" are the same or different, and each is an organic group. Annealing of titanium-bearing substrate material of catalyst is carried out at a temperature above 900°C with obtaining modified catalyst substrate, which contains more than 1 wt % and less than 3.5 wt % Ti, mass-based modified catalyst substrate with Ti is in the form of one or more compounds of titanium. The invention also relates to methods of obtaining the catalyst and catalyst's predecessor, as well as to the method of synthesis of hydrocarbons.EFFECT: lower costs.20 cl, 3 dwg, 5 tbl, 38 ex

ethod for producing distillate fuel and anode grade coke from vacuum resid // 2628067
FIELD: oil and gas industry.SUBSTANCE: modernization method includes: contacting the hydrocarbon bottoms and hydrogen with a hydroconversion catalyst in a bottoms hydroconversion reactor system; extraction of effluent from the bottoms hydroconversion reactor system; separating the effluent from the bottoms hydroconversion reactor system to recover two or more hydrocarbon fractions comprising at least a fraction of the oil vacuum residue and a heavy vacuum gas oil fraction; combining at least a portion of the heavy vacuum gas oil fraction and at least an oil vacuum residue fraction to form a mixed heavy hydrocarbon fraction; feeding at least a portion of the mixed heavy hydrocarbon fraction to the coker unit; the coker unit functioning under the conditions of producing green anode coke and hydrocarbon distillate; extraction of the hydrocarbon distillate out of the coker unit; fractionation of the hydrocarbon distillate, extracted from the coker unit, to separate three or more hydrocarbon fractions including a light distillate fraction, heavy coker gas oil fraction and coker recycling fraction, where the coker unit is operated at a temperature of at least 500°C at the outlet of the heating coiler.EFFECT: invention makes it possible to obtain anode coke.37 cl, 3 dwg, 5 tbl, 1 ex
ethod of oil plastificators obtaining // 2628065
FIELD: oil and gas industry.SUBSTANCE: method involves the treatment of extracts of selective oil fractions purification with liquefied propane, with the release of a deasphalted oil solution. The treatment is carried out at a temperature of from 35°C to 80°C and the mass ratio of propane to extract from 6:1 to 12:1. The extract is mixed with the asphalt solution before the treatment with liquid propane at a mass ratio of the extract to asphalt solution from 0.5:1 to 1:1.EFFECT: method allows to obtain oil plasticizers with a low content of polycyclic aromatic compounds.3 ex

Production method of synthetic gas from low-calorial brown coals with high-ash and device for its implementation // 2627865
FIELD: oil and gas industry.SUBSTANCE: feedstock is subjected to disintegration, drying and gas generation in the field of the cyclonic swirl with the high temperature field applied to the swirling stream, where the part of the generated synthetic gas is supplied together with the high-temperature steam into the reaction chamber to activate the feedstock decomposition and increase the gas generation. The device contains the reaction chamber 4 with the power actuated screw pump 2, the swirler of the supplied superheated steam 24. The cavity of the chamber has the synthetic gas supply pipe to its purification 23, and it is also equipped with the part of the synthetic gas supply line again into the reaction area.EFFECT: increase of the low-calorial brown coals gasification energy efficiency, productivity, synthetic gas quality, provision of the plant reliability.2 cl, 5 dwg

Device for oil wastes recycling // 2627784
FIELD: oil and gas industry.SUBSTANCE: device for oil waste recycling contains scroll conveyor body, a auger placed in it, a heater, an additional steam generator. The body of the scroll conveyor in the upper part is made in the form of a rectangular box, the bottom wall of which is made in the form of a porous plate with a porosity of 0.2-0.6, on which a horizontal tube bundle is installed. In the lower part, the body is made in the form of two semi-cylindrical slots installed in parallel and connected along a generatrix of a cylindrical surface. The auger is made in the form of two spirals, each of which is installed in a semicylindrical slot. On the axis of each spiral there is a pipe with a porous wall, which is connected to the steam generator with its input. The output of each pipe with a porous wall is connected to a rectangular box. The heater in the form of a tube bundle is installed from the outside on the conveyor body and is connected to the output of a horizontal tube bundle with its input.EFFECT: reduction of hydrocarbon losses during oil wastes recycling, reduced harmful discharges to environment.4 dwg, 2 ex
Anti-wear composition for lubricating oils // 2627771
FIELD: chemistry.SUBSTANCE: anti-wear composition for lubricating oils contains molybdenum dialkyl dithiophosphate with alkyl radicals containing 12 or more carbon atoms in combination with maleic acid diester with alkyl radicals containing 12 or more carbon atoms. The starting components are taken in the following ratio, wt %: molybdenum dialkyl dithiophosphate - 40-80; diester of maleic acid - 20-60.EFFECT: improving the composition properties.1 tbl
Catalyst for isodewaxing hydrocarbon feedstock c10+ for production of waxy oils and diesel fuels and method of producing waxy oils and fuels with its use // 2627770
FIELD: chemistry.SUBSTANCE: catalyst for isodewaxing hydrocarbon feedstock C10+ for the production of waxy oils or diesel fuels contains 20-60 wt % of the MTT zeolite structure, 1-3 wt % of the MOR zeolite structure, 0.2-0.4 wt % of platinum, the rest is a binder. The catalyst can be further modified with a metal selected from the group: Ca, Mg, Ba, In, Ce. The method for producing waxy oils or diesel fuels is proposed by contacting a mixture of a hydrocarbon feedstock and hydrogen with the said isodewaxing catalyst under the following conditions: a temperature of 250-350°C, a pressure of 2-15 MPa, a volumetric feedstock rate of 0.5-3.0 h-1, the ratio of hydrogen to feedstock is 350-2000 nl/l.EFFECT: increasing the yield of the target product in the process of isodewaxing hydrocarbon feedstock.5 cl, 9 ex, 8 tbl
High-temperature multi-purpose universal lubricant // 2627766
FIELD: chemistry.SUBSTANCE: invention relates to a multi-purpose universal high-temperature lubricant intended for use in friction units of loaded industrial equipment, modern vehicles, industrial, construction and marine equipment operating at a temperature of -35°C to +160°C, under conditions of high humidity and acidity. Multi-purpose universal high-temperature lubricant includes mineral oil, thickener and antioxidant, anti-scuffing, adhesion and anticorrosive additives. It additionally contains High-tech 343, Anglamol-99 or Anglamol 33 as an antifriction additive including phosphorus, sulfur and nitrogen, 1,2,3 benzotriazole as a corrosion inhibitor, and a dye-pigment, blue phthalocyanine. Isobutylene polymer is used as a thickener, zinc dialkyl dithiophosphate is used as an anticorrosive and antiwear additive, Akor-1 in the form of a nitrated oil of M-8 type with 10-11% of technical stearin is used as an anticorrosive additive, Agidol-1(4-methyl-2,6-di-tert-butylphenol), Naftam-2 or Diphenylamine is used as an antioxidant additive of phenolic type, and the following is used as a mineral oil: a mixture of three highly purified mineral base oils consisting of a residual oil component, a distillate III vacuum residue oil component and a low-hardening oil component, taken in the ratio of 3:1:2, with the following ratio of components, wt %: complex lithium soap of 12-hydroxystearic acid 18-26; 1,2,3 benzotriazole 0.3-0.8; Akor-1 0.4-0.8; isobutylene polymer 1.0-2.0; zinc dialkyl dithiophosphate 0.3-0.7; High-tech 343, Anglamol-99 or Anglamol-33 1.5-2.5; Agidol-1(4-methyl-2,6-di-t-butylphenol), Naftam-2 or Diphenylamine 0.3-1.0; blue phthalocyanine pigment 0.7-1.2; mixture of mineral base oils - the rest.EFFECT: creation of a universal multi-purpose high-temperature antifriction lubricant, capable of operating in a wide temperature range with a high upper limit of use, which has a low cost.2 tbl

Lubricating film-forming composition and threaded connection for steel pipes // 2627704
FIELD: chemistry.SUBSTANCE: lubricating film-forming composition comprising: from 40 to 80% by weight of base oil, consisting of one or more substances, selected from pentaerythritol ester, fatty acid, trimethylolpropane ester and fatty acid; from 5 to 20% by weight of a solidifying substance, consisting of paraffin wax; and from 10 to 40% by weight of a solid lubricant, consisting of one or more substances, selected from alkali metal salt and hydroxystearic acid; and salts of alkaline earth metal and hydroxystearic acid. The total content of the base oil, solidifying agent and solid lubricant is 85 wt % or more and 100 wt % or less, and the lubricating film-forming composition does not contain heavy metals. A threaded joint for steel pipes, including a nipple and a coupling, is also provided, wherein said threaded joint is provided with a lubricating film that is formed from a lubricating film-forming composition on the surface of the fitting part.EFFECT: improved properties.4 cl, 5 dwg, 2 tbl
Lubricant composition for marine engine // 2627696
FIELD: chemistry.SUBSTANCE: lubricant composition for a four-stroke or two-stroke marine engine comprises at least one marine engine base oil, at least one olefin copolymer, at least one styrene/hydrogenated isoprene copolymer, at least one glycerol ester and at least one detergent.EFFECT: fuel economy and good performance in terms of engine cleanliness, particularly crank case purity.12 cl, 3 tbl
Fuel composition for displacement vessels // 2627668
FIELD: chemistry.SUBSTANCE: invention describes a fuel composition for displacement vessels that contains a light vacuum oil strap with a boiling point of 96 vol. % to 400°C and hydrotreated diesel fuel, characterized by the fact that it contains a hydrotreated light vacuum oil strap of West Siberian oil with a boiling point of 96 vol. % to 400°C, hydrotreated diesel fuel of West Siberian oil with a boiling point of 95% to 360°C and additionally a hydrotreated diesel fraction of Sakhalin oil with a boiling point of 95 vol. % to 360°C at the following ratio of components, wt %: hydrotreated light vacuum oil strap of West Siberian oil with a boiling point of 96 vol. % to 400°C 18-22 hydrotreated diesel fraction of Sakhalin oil with a boiling temperature of 95 vol. % to 360°C 49-55 hydrotreated diesel fuel of West Siberian oil with a boiling temperature of 95 vol. % to 360°C to 100.EFFECT: increasing ecological, energy and protective properties of fuel composition.5 tbl

ethod of conversion of hydrocarbon raw materials with receiving threads olefin products through thermal steam cracking // 2627665
FIELD: chemistry.SUBSTANCE: invention relates to a process of conversion consisting of hydrocarbon starting materials by thermal steam cracking unit to produce at least one olefin content of a product stream comprising at least ethylene and propylene, with at least partial conversion of the starting materials at least one first cracking-pechi (1) and at least one second cracking furnace (2), wherein fresh feedstock (B) are separated by at least one first and one second fraction (B1, B2) of fresh raw material, commercially different composition, and the first fraction (B1) of fresh starting material fed at least partially into the first cracking furnace (1) and a second fraction (B2) is directed at least partially into the second cracking furnace (2). Method is characterized by the fact that the second fraction (B2) of fresh raw material primarily contains hydrocarbons with a maximum number of carbon atoms 5, the first fraction (B1) of fresh raw material primarily contains hydrocarbons with carbon number at least 6, the second a cracking furnace (2) provide the conditions that lead to cracking against propylene for ethylene, from 0.7 to 1.6 kg/kg at the exit of the cracking furnaces and in the first cracking furnace (1) provide the conditions that lead to cracking against propylene for ethylene, from 0.25 to 0.85 kg/kg at the exit of the cracking furnaces. The values achieved for the ratio of propylene to ethylene in the second cracking furnace (2) are higher than the values achieved for the ratio of propylene to ethylene in the first cracking furnace (1).EFFECT: increase in the yield of propylene.12 cl, 3 dwg

ethod of obtaining olefins by thermal steam craking // 2627663
FIELD: chemistry.SUBSTANCE: invention relates to a process of converting hydrocarbon feed streams by thermal steam cracking to produce at least one olefin containing product stream comprising at least ethylene and propylene by at least partial conversion of a hydrocarbon feed stream in at least one cracker (2). The process is characterized in that the hydrocarbon feed stream is converted under mild cracking conditions in the cracking furnace (2), whereby the soft cracking conditions mean that the ratio of propylene to ethylene is 0.85 to 1.6 kg/kg at the outlet of the cracking furnace, and the hydrocarbon feed stream mainly contains hydrocarbons having a maximum number of carbon atoms 5.EFFECT: increase in the yield of propylene.15 cl, 5 dwg

ethod of conversion of hydrocarbon initial materials through thermal steam craking // 2627662
FIELD: chemistry.SUBSTANCE: invention relates to a method of conversion of hydrocarbon raw materials by thermal cracking of steam with the receipt contains th7e olefins product flow containing at least ethylene and propylene, with at least partial conversion of the first hydrocarbon source material at least one cracking furnace (1) and the second hydrocarbon source material for at least one second-cracking furnace (2). The process is characterized in that the second hydrocarbon feedstock mainly comprises hydrocarbons having a carbon number of 5 or 4 and is for the most part composed of one or more recirculated fractions (P, T) which are obtained from the product stream. The second hydrocarbon is converted into a second cracking furnace (2) under cracking conditions which result in a propylene to ethylene ratio of 0.85 to 1.6 kg/kg, the first hydrocarbon feedstock comprising at least one fraction (U), which has been separated from the product stream and recycled, containing mainly hydrocarbons having a carbon number of at least 6, the first hydrocarbon feedstock is converted in the first cracking furnace (1) under cracking conditions that result in a ratio of propylene to ethylene, composition From 0.25 to 0.85 kg/kg at the outlet of the cracking furnace, and the ratio of propylene to ethylene for the second hydrocarbon feedstock is higher than the ratio of propylene to ethylene for the first hydrocarbon feedstock.EFFECT: increasing the yield of propylene.13 cl, 3 dwg
Underground reactor system // 2627594
FIELD: power industry.SUBSTANCE: method for fuel producing from an organic material in an underground reactor (versions) and an underground reactor for use in the above process (versions) is proposed. The underground reactor includes the first conduit for organic material injecting under the ground and converting it into fuel, the second bypass for raising the converted organic material, and a heat exchanger for generating heat to power the equipment where the heat transfer fluid contains piezo-thermal or piezoelectric particles. In another version the underground reactor also comprises a pump for holding the reaction zone at the desired temperature. The method includes sending the organic material under the ground through the first conduit, applying to an organic material in a pressure and temperature reaction zone for converting the organic material into fuel, raising fuel through the second pipeline, and circulating the heat transfer fluid. In another version the method also includes using a heat exchanger to generate heat for use in the equipment powering.EFFECT: obtaining fuel due to underground temperature and pressure.95 cl, 23 dwg, 5 tbl, 13 ex
Charge for metallurgical coke production // 2627425
FIELD: metallurgy.SUBSTANCE: charge is proposed for the metallurgical coke production. The charge contains, wt %: petroleum coke 30.0-1.0; oil residues 30.0-1.0; a mixture of coals of 40.0-98.0. The oil residues used are characterised by ash content of Ad not more than 2.5%, the yield of volatile substances of Vdaf not more than 90%, sulfur content of Sd not more than 5%, Roga index (IR) no less than 10. Petroleum coke is characterised by ash content of Ad not more than 2.5%, the yield of volatile substances of Vdaf not more than 25%, sulfur content of Sd not more than 5%.EFFECT: expanding the functionality of the charge for coking by removing restrictions on the type of coal used in the charge.2 cl, 4 tbl, 2 ex
ethod of producing fire-resistant liquid // 2627402
FIELD: chemistry.SUBSTANCE: method for producing a fire-resistant liquid by reacting a mixture of xylenol derivatives by an esterification reaction with phosphorus oxychloride. The mixture is used at the following component ratio, pts. wt.: 3.5 xylenol (65-75), 3.4 xylenol (20-25), impurities (phenol and/or m, p-cresols and/or 2.5/2.5 xylenols and/or ethylphenols) to 5 in the presence of a catalyst at 110-120°C for 9-15 hours and distillation of the resulting reaction mass is carried out. Distillation is carried out at 210-240°C and at a reduced pressure, followed by purification or aqueous-alkaline purification at a temperature of 120-150°C and a pressure of 25-40 mm Hg, and then the product is run through a filter.EFFECT: invention makes it possible to completely exclude the toxic fractions of xylenol from the raw material while maintaining the final product of physico-chemical, operational and toxicological properties that meet all the requirements for fire-resistant hydraulic and lubricating materials.3 ex, 3 tbl

Device for modified bituminous binder manufacture // 2627392
FIELD: chemistry.SUBSTANCE: device for modified bituminous binder manufacture includes a tank with oil heating coils, thermal insulation, galvanized metal sheet lining, a manhole, a modifying components supply unit and a mixer with an electric drive in the form of a vane device in a cylindrical outer casing with bitumen and modifier mixture taking from the upper layers and feeding to the tank bottom, input and output circulation pipes with ball valves heated by thermal oil, bitumen filter, electric pump with an inverter and a passive hydrodynamic dispersant, as well as a dispersant washing unit as part of the washing oil tank and oil pump connected by pipes to the dispersant inlet and outlet via three-way valves, allowing the dispersant to be washed with an oil flow directed oppositely to the flow through the dispersant during bitumen modification cycle.EFFECT: production of modified bitumen, including polymer-modified, without the use of plasticisers, and energy-efficient obtaining of uniform distribution of the modifying component or optimal continuous spatial structure of thermoplastic elastomers in the entire volume of modified bitumen.3 cl, 1 dwg, 2 tbl, 2 ex

Automated control of batch process of delayed coking unit // 2627372
FIELD: oil and gas industry.SUBSTANCE: computerized control system of batch sequencing is configured for the automated operation of service valves in a delayed coking unit to perform a cycle of the coke drum. A double check of the service valve travel is used to confirm the transition to the next stage. Initial verification is provided by the use of position sensors of the valves. Secondary verification is provided by using controlled process conditions and confirming the measured conditions, consistent with the intended process conditions, to set the valve positions in a predetermined sequence in the cycle of the coke drum. The safety lock system can be integrated with the control system.EFFECT: invention makes it possible to automate the coking process.12 cl, 4 dwg

ethod of obtaining catalyst usable in hydroprocessing and in hydroconversion // 2627362
FIELD: chemistry.SUBSTANCE: invention relates to a process of the preparation of a catalyst starting from a catalyst precursor containing an alumina carrier and/or silica-alumina and/or zeolite and containing at least one Group VIB element and optionally at least one element VIII Group. The method includes impregnating mentioned precursor with a solution of (C1-C4)dialkylsuccinate. The method includes the step of impregnating (step 1) of mentioned dried, calcined or regenerated precursor with at least one solution containing at least one carboxylic acid other than acetic acid, followed by aging and drying at a temperature of less than or equal to 200°C, possibly followed by heat treatment at a temperature of less than 350°C; Step 1 is followed by impregnation (step 2) with a solution containing at least one (C1-C4)dialkylsuccinate, then aging and drying at a temperature of less than 200°C no subsequent calcination step. The catalyst precursor and/or the solution of step 1 and/or the solution of step 2 contains phosphorus. The catalyst is used in hydroprocessing and/or hydroconversion.EFFECT: improvement of catalytic activity.21 cl, 1 dwg, 2 tbl, 8 ex

Additives introducing into the coke drum // 2626955
FIELD: metallurgy.SUBSTANCE: invention discloses a method of coke producing, comprising the steps of: heating a coking material to a coking temperature to produce heated coking material; feeding the heated coking material to the coke drum; introducing a coke additive containing at least one hydroconversion or hydrocracking catalyst into a coke drum, the coke additive is being dispersed into the lower portion of the coke drum, thermal cracking of the heated coking material in a coke drum for a coking material portion cracking to produce a cracked steam product and coke. A system for coke production is also disclosed.EFFECT: obtaining coke with improved performance.15 cl, 3 dwg

Plant for coal drying with using reheated steam // 2626919
FIELD: heating system.SUBSTANCE: invention relates to a plant for coal drying using reheated steam, and in particular equipped with a multi-stage dryer that removes water contained in coal used as fuel for thermal power plants by injecting a jet of reheated steam. Installation for coal drying with using reheated steam includes a first coal dryer, a second coal dryer and a third dryer. The method is carried out by removing the moisture remaining inside and on the surface of coal used as fuel for thermal power plants in multi-stage coal dryers by using a reheated steam with a high temperature, incomplete coal combustion can be prevented.EFFECT: coal calorific capacity is increased, the emission of pollutants is minimized, corrosion is prevented and the service life of the system is increased, the level of natural ignition is reduced due to the decrease in humidity, the efficiency of coal grinding and the distribution of heat in the power boiler during coal combustion are increased.6 cl, 5 dwg

Gas reflux apparatus // 2626904
FIELD: machine engineering.SUBSTANCE: invention describes a gas reflux apparatus including a vertical apparatus with upper and lower reflux sections located at the top of the apparatus and a separation zone at the bottom of the apparatus with a feed gas line and condensate discharge lines in which the upper reflux section is connected with input/output coolant lines to refrigeration unit, equipped with coolant input/output lines, and the lower reflux section is connected to the top of the apparatus with the input/output lines for feeding processed gas as coolant. The refrigeration unit is connected with coolant input/output lines to the heat exchanger installed on the processed gas output line.EFFECT: decrease the relative humidity of the gas.2 cl, 1 dwg
Way of wood torrefaction // 2626852
FIELD: timber conversional industry.SUBSTANCE: way of wood torrefaction comprises the wood warming-up to 200°C in the airtight drying chamber, the following wood warm-up at a temperature of 200-300°C in the airtight torrefaction chamber, the torrefacated wood cooling-down inside the airtight atmosphere. At first the wood is sawed before the warming-up and then is ripped into wood blocks, the wood warm-up lasts for not less than 2 hours, the further wood warm-up in the torrefaction chamber lasts for 2.3-2.8 hours.EFFECT: enhancement of process safety.4 dwg, 1 tbl
Antiscuff coating for threaded joint of pump-compressor and casing tubes and method of its production // 2626827
FIELD: chemistry.SUBSTANCE: antiscuff coating is made from the composition, containing the following components (in weight percent): the organic binder of 30%-60%, the solid lubricant of 30%-60%, the corrosion inhibitor of 6%-15%, the levelling agent of 0.01%-0.1%, the wetting agent 0.01%-0.1% and in addition the mixture of solvents. The organic binder is the liquid polyamide-imide resin with the solids content of 38-42%. The solid lubricant is any substance from the molybdenum disulphide and tungsten disulphide or the combination of molybdenum disulphide or tungsten disulfide with polytetrafluoroethylene. Preferably, the solid lubrication and the corrosion inhibitor are the surface-modified with the silane bonding agent. The antiscuff coating is obtained by spraying the coating on the surface of the threaded joint of pump-compressor and casing tubes, treated with phosphate; thus avoiding the environmental contamination with the heavy metal powder, contained in the threaded grease.EFFECT: production of coatings that have good antiscuff and anticorrosive properties.7 cl, 8 dwg, 16 ex

ethod of retrieving components from natural and petraction of technological gas mixtures on nanoporous membranes // 2626645
FIELD: oil and gas industry.SUBSTANCE: method of removing a gas mixture components, based on the passage of the gas mixture components through the nanoporous membrane selective absorption of liquid absorbent in contact with nanoporous membrane in which to prevent gas in the liquid phase and liquid absorbent is vaporized using nanoporous membrane with uniform porosity (variance in size less than 50%) pore diameter in the range 5-500 nm, and the pressure difference between the gas phase and liquid absorbent support below the bubble point pressure membrane performance selection of acid gases (over 0.3 nm3/(m2 h) on CO2) when the packing density of the hollow fiber membrane to 3200 m2/m3, which corresponds to the specific volume capacity of removal of acid gases to 1000 nm3/(m3 h).EFFECT: ensuring the effective extract of unwanted components of natural and technological gas mixtures.13 cl, 5 dwg 1 tbl
ethod for preparing hydrotreatment catalyst of hydrocracking raw materials // 2626402
FIELD: chemistry.SUBSTANCE: invention relates to methods for preparing hydrotreatment catalysts of petroleum fractions with a boiling point above 360°C for producing raw materials with a low content of sulfur and nitrogen, which is further processed in the hydrocracking process. The method for preparing a catalyst, comprising the carrier impregnation, which comprises, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - not more than 0.03; -γAl2O3 - the rest, with an aqueous solution of a bimetallic complex compound [Ni (H2O)2]2[Mo4O11(C6H5O7)2] followed by drying. The catalyst contains, wt %: [Ni (H2O)2]2[Mo4O11(C6H5O7)2] 29.0-36.0%; carrier - the rest. The carrier impregnation is used by the moisture capacity or from a solution excess. Impregnation is carried out at the temperature of 20-80°C for 20-60 minutes with occasional stirring. After impregnation, the catalyst is dried in air at the temperature of 100-200°C. The catalyst has specific surface area of 130-180 m2/g, the pore volume of 0.35-0.65 cm3/g, the average pore diameter is 10-15 nm and particles with section in the form of circle, trefoil or quatrefoil with a diameter of the circumscribed circle of 1.0-1.6 mm and the length of up to 20 mm.EFFECT: producing a catalyst having the maximum activity in the desulfurization and denitrogenation reactions occurring during the hydrotreatment of petroleum fractions with a boiling point above 360 degrees.5 cl, 7 ex, 1 tbl
ethod of hydrotreating hydrocracking feedstock // 2626401
FIELD: chemistry.SUBSTANCE: method of hydrotreating hydrocracking feedstock consisting in hydrotreating petroleum fractions having a boiling point above 360°C, in the presence of a heterogeneous catalyst, wherein the catalyst used comprises, wt %: [Ni (H2O)2]2[Mo4O11(C6H5O7)2] 29.0-36.0%; a carrier - the rest; the carrier comprising, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - no more than 0.03; γ-Al2O3 - the rest.EFFECT: producing a hydrocracking feedstock with a low sulfur and nitrogen content upon hydrotreating petroleum fractions having a boiling point above 360 degrees.5 cl, 1 tbl, 7 ex
ethod for producing low-sulfur catalytic cracking feedstock // 2626400
FIELD: chemistry.SUBSTANCE: method is described for producing a low-sulfur catalytic cracking feedstock comprising hydrotreating a vacuum gas oil with a high sulfur content in the presence of a heterogeneous catalyst, wherein the catalyst used comprises, wt %: [Co(H2O)2(C6H5O7)]2[Mo4O11(C6H5O7)2] 33.0-43.0; carrier - the rest; the carrier comprising, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - not more than 0.03; γ-Al2O3 - the rest.EFFECT: producing catalytic cracking feedstocks containing less than 300 ppm of sulfur during hydrotreatment of vacuum gas oil with high sulfur content.5 cl, 1 tbl, 7 ex
ethod of preparing catalyst of hydrocarbon raw material hydrotreatment // 2626399
FIELD: chemistry.SUBSTANCE: method of preparing a catalyst is described, that comprises impregnating a carrier, which contains, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - not more than 0.03; γ-Al2O3 - the rest; aqueous solution of a bimetallic complex compound [Co (H2O)2(C6H5O7)]2[Mo4O11(C6H5O7)2] followed by drying. The proportions of the components are used such that the resulting catalyst contains, wt %: [Co (H2O)2(C6H5O7)]2[Mo4O11(C6H5O7)2] 33.0-43.0; carrier - the rest. The carrier contains, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - not more than 0.03; γ-Al2O3 - the rest. The carrier impregnation is used by a moisture capacity or from a solution excess. After impregnation, the catalyst is dried in air at the temperature of 100-200C°. The used conditions of preparation provide a catalyst having a specific surface of 130-180 m2/g, a pore volume of 0.35-0.65 cm3/g, the average pore diameter is 7-12 nm and is particles with a section in the form of a circle, trefoil or quatrefoil with a diameter of the circumscribed circle of 1.0-1.6 mm and the length of up to 20 mm.EFFECT: producing a catalyst having maximum activity in target reactions occurring when hydrocarbon material is hydrotreated.5 cl, 7 ex, 1 tbl
Catalyst for hydrotreating hydrocarbon raw materials // 2626398
FIELD: chemistry.SUBSTANCE: catalyst is described containing, wt %: [Co(H2O)2(C6H5O7)]2[Mo4O11(C6H5O7)2] 33.0-43.0%; carrier - the rest; the carrier comprising, wt %: aluminium borate Al3BO6 with the structure of norbergite - 5.0-25.0; sodium - not more than 0.03; γ-Al2O3 - the rest. The aluminium borate Al3BO6 with the structure of norbergite is a particle with dimensions of 10 to 200 nm, characterized by interplanar distances of 3.2 and 2.8 A, with an angle between them of 53.8°. The catalyst has a specific surface area of 130-180 m2/g, a pore volume of 0.35-0.65 cm3/g, the average pore diameter is 7-12 nm and is particles with a section in the form of a circle, trefoil or quatrefoil with a diameter of the circumscribed circle of 1.0-1.6 mm and the length of up to 20 mm. After sulphiding by the known techniques, the catalyst contains, wt %: Mo - 10.0-14.0; Co - 3.0-4.3; S = 6.7-9.4; carrier - the rest.EFFECT: producing a catalyst having maximum activity in target reactions occurring when hydrocarbon material is hydrotreated.4 cl, 1 tbl, 7 ex
Crude hydrocarbons hydro-cracking method // 2626397
FIELD: oil and gas industry.SUBSTANCE: invention relates to the hydro-cracking process in which the high boiling crude hydrocarbons is converted at the temperature of 360-440°C, pressure 6-20 MPa, the raw materials mass consumption 0.5-1.5 h-1, the volume ratio of hydrogen to the raw material is 800-2000 nm3/m3 in the presence of the catalyst, containing nickel and tungsten in the form of bimetallic complex compounds of Ni (NH4)x[HyW2O5(C6H5O7)2], where: C6H5O7 - partially deprotonated form of citric acid; x = 0, 1 or 2; y = 2-x; silicon in the form of the amorphous aluminosilicate, aluminium in the form γ-Al2O3. The components in the catalyst are contained in the following concentrations, wt %: [Ni (NH4)x[HyW2O5(C6H5O7)2] - 32.6-39.6, amorphous aluminosilicate - 30.2-47.2; γ-Al2O3 the rest, which corresponds to the content of the calcined catalyst at 550C°, wt %: WO3 - 19.3-24.2, NiO - 3.0-3.8, amorphous aluminosilicate - 36.0-54.4; γ-Al2O3 - the rest.EFFECT: high yield of middle-distillate fractions.3 cl, 2 tbl, 5 ex
Hydrocarbons crude hydrocraking catalyst // 2626396
FIELD: oil and gas industry.SUBSTANCE: catalyst, including nickel, tungsten, aluminium and silicon is described. It contains nickel and tungsten in the form of bimetallic complex compounds of Ni (NH4)x[HyW2O5(C6H5O7)2], where C6H5O7 are partially deprotonated form of citric acid; X = 0, 1 or 2; Y = 2-x; silicon in the form of the amorphous aluminosilicate, aluminium in the form of γ-Al2O3. The components in the catalyst are contained in the following concentrations, wt %: [Ni (NH4)x[HyW2O5(C6H5O7)2] - 32.6-39.6, amorphous aluminosilicate - 30.2-47.2; γ-Al2O3 - the rest, which corresponds to the content of the calcined catalyst at 550C°, wt %: WO3 - 19.3-24.2, NiO - 3.0-3.8, amorphous aluminosilicate - 36.0-54.4; γ-Al2O3 - the rest. In this case, the weight ratio of Si/Al in the amorphous aluminosilicate is from 0.6 to 0.85, wherein the X-ray diffraction patterns of the amorphous aluminosilicates contain the wide peak in the range 16.5-33.5° with the maximum 23.1-23.4°.EFFECT: hydrocarbons crude high activity in the hydrocracking and high selectivity with respect to the middle distillate fractions.2 cl, 2 tbl, ex 5
ethod of black oil fuel refinery // 2626393
FIELD: oil and gas industry.SUBSTANCE: invention relates to a method for black oil fuel refinery, including catalytic cracking of raw materials at a temperature above 370°C using an iron-containing catalyst. Iron-manganese milled nodules, containing (4.5-15.0%) of iron wt, (8.0-28.0)% wt of manganese, and (7.0-9.0)% wt of silicon, with a particle size of 1-100 mcm, taken in an amount of 0.001-1.0% by weight, are used as the iron-containing catalyst.EFFECT: method allows to regulate conversion and to change the ratio of the obtained light cracking products, as well as to obtain the bottoms liquid of low ash, which can be used as residual oil without further refinery.3 cl, 2 tbl, 7 ex

ethod for heavy oil residue processing // 2626333
FIELD: oil and gas industry.SUBSTANCE: method for heavy oil residue processing includes feeding raw materials heated in a furnace in a vacuum column with separating vacuum diesel and gas oil fractions and residue using top and bottom pumparound and supplying an evaporating agent in the bottom of the vacuum column. The method is characterised in that, after being cooled in heat exchangers, the bottom pumparound is introduced into the column in two streams to different contact devices arranged above its outlet from the column. The amount of the top stream of the bottom pumparound is not more than 60% of the total amount of the above pumparound.EFFECT: invention allows increasing the productivity of raw materials and reducing capital costs.1 dwg, 2 tbl

Oil residual delayed thermal conversioin plant // 2626321
FIELD: machine engineering.SUBSTANCE: invention relates to the oil residual delayed thermal conversion plant, including the fractionation unit, equipped with the gas discharge lines, light products, flux oil and the heavy gas oil outlet line to which the circulating residue supply line adjoins and at which the cracking furnace and the separator, equipped with the residue feed line in the thermal conversion reactor, equipped with the supply line of the circulating and balance residue vapours. In this case, the fractionation unit is equipped with the heavy fraction input and the thermal conversion vapours supply lines, the marine fuel and naphtha input lines, the latter - to the heavy gas oil outlet line. In addition, the plant is equipped with two mixers and three separators, the first of which is located on the heavy gas oil outlet line, the balance residue supply line is adjacent to the flux oil output line to the first mixer, located on the vapour part supply line from the first to the second separator, which is equipped with the vapours supply line to the thermal conversion vapour supply line and the residue supply line to the third separator, connected by the vapour supply line to the second mixer, located on the vapour remained part supply line from the first separator to the thermal conversion vapour supply line, also equipped with the residue supply line to the absorber, equipped with the absorption vapour supply line into the vapour supply line from the third separator, on which the vacuum-generating device is located, as well as the bituminic raw materials output lines, the input of the raw fuel oil part and the supply of the heavy fraction into the fractionation unit, to which the supply line of the raw oil residual remain part heated in the recuperative heat exchanger ajoins, located on the bituminic raw material output line.EFFECT: plant allows to obtain the marine fuel and bituminic raw materials without using the water vapour.1 dwg
ethod of processing sulfur-containing oil sludge with high water content // 2626240
FIELD: chemistry.SUBSTANCE: method for processing a sulfur-containing oil sludge with a high water content involves premixing the oil sludge with a hydrocarbon solvent, activating the product produced by exposing the latter to electromagnetic radiation with a frequency of 40-55 MHz, a power of 0.2-0.6 kW, with an activation time of 1-8 hours and a temperature of 40-70°C, separating the hydrocarbon, aqueous and solid phases from the activated product, distilling the hydrocarbon solvent from the hydrocarbon phase, and carrying out the hydrocracking produced by stripping the hydrocarbon component in the presence of the zeolite-containing catalyst at a temperature of 400-500°C, a hydrogen pressure of 50-100 atm, for 2.0-3.0 hours to produce the desired oil.EFFECT: producing the target petroleum product with low sulfur content.3 ex
High-viscosity marine fuel // 2626236
FIELD: chemistry.SUBSTANCE: invention describes high-viscosity marine fuel including the use of distillate of the secondary cracking processes with boiling points of 350-500°C, characterized in that, in addition, a visbreaking residue (VR) is used as a component, which is compounded with a distillate of the secondary cracking processes (DSCP), in a weight ratio: visbreaking residue of 20-60; distillate of the secondary cracking processes - 40-80 and a depressant-dispersant additive is added into the produced marine fuel, which is a mixture of polymethylmethacrylate with its diene, ethylene, propylene and polypropanol copolymers, in an amount of 0.0125 to 0.5000 wt %.EFFECT: producing a high-viscosity marine fuel with improved low-temperature properties, in particular, with the lowest pour point.1 cl
ethod for reducing friction factor // 2625918
FIELD: chemistry.SUBSTANCE: method for preparing the composition-modifier for the metal friction pairs involves the preparation of a powder mixture of the dispersed particles of antigorite Mg6Si4O10(OH)8 and lizardite Mg3Si2O5(OH)4 and mixing of the said powder mixture in the oil. The said powder mixture is further added to the particles of chrysotile Mg6Si4O10(OH)8 and alpha-boron nitride in the following ratio, wt %: 2-10 antigorite, lizardite 2-20, 15-40, chrysotile and boron alpha-nitride 20-50. For liquid oils, the fractions of antigorite, lizardite and chrysotile 100-200 nm, the fraction 200-300 nm of boron alpha-nitride are used . For lubricating oils, the fractions of antigorite, lizardite and chrysotile 200-400 nm and the fraction 200-300 nm of boron alpha-nitride are used.EFFECT: increasing the period of the scheduled recovery operations, reducing the cost of the repair work and increasing the efficiency of the product by reducing the effects of abrasive, cavitation and abrasion-cavitation wear in the metal friction pairs.2 cl
 
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