A method of manufacturing an alkaline reagent for regeneration of lubricating oil
(57) Abstract:Use: manufacture of alkaline reagent for regeneration of lubricating oils. The inventive method of manufacturing an alkaline reagent for regeneration of lubricating oil comprises preparing a melt of the components containing metals of variable IV-V groups and metals of groups I-II, in which when the temperature of 10-70oC above the melting temperature of the alloy is immersed metal filler, made from the waste of Metalworking in the form of a porous element, and incubated for 1-15 min, and then the filler is removed from the melt, is immersed in an inert environment and cool, with a mass ratio of filler alloy is 0.1-10:1. 3 C.p. f-crystals, 1 Il., table 1. The invention relates to the field of mechanical engineering, power engineering, chemical and petrochemical industry, specifically, to the field of production of alkaline multicomponent alloys, in particular , is used as the alkaline reagent for regeneration of lubricating oils.There is a method of extending the service life of parts friction and aging of lubricating oil during operation of the mechanisms by introducing lubricants metal additives and Gulidov, as metal dobbie of galaida /A. C. the USSR N 152601, class C 23 C 26/00, 1969/.The disadvantage of such an alkaline reagent is the high reactivity of the alloy, the tendency to rapid oxidation in air, an explosive concentrations of hydrogen in air at interaction with water contained in the oil.The objective of the invention is to increase the efficiency of the regeneration of lubricating oils and efficiency of this process.The proposed new method of manufacturing an alkaline reagent for regeneration of oils gives made a new way reactant new features that allow to solve the problem.The proposed method involves the fusion of metals of variable valence of group IV and V metals of groups I and II and the mixing of this alloy with a metal filler. The novelty with respect to the prototype is the method of preparation of the filler and the coupling of the reagent. According to the invention, the filler is made of waste metal, for example, of metal shavings, extruding them to the size that allows you to put the filler in the filter, i.e. the size of the oil filter. Thus obtained porous element is dipped in the melt alkaline reage in the melt 1 - 15 minutes, removed from the melt, is immersed in an inert environment and stand there until they reach the inert medium and the reagent at ambient temperature. Reagent fills the pores of the filler in a mass ratio of from 0.1 : 1 to 10 : 1. Proposed preparation of an alkaline reagent. Proposed to fuse the oxides, hydroxides, carbonates, acetates, and other salts of metals of variable valency IV and V groups or concentrates containing ores with oxides, hydroxides, carbonates or other salts of metals of groups I and II. As the inert environment, you can use mineral, vegetable or synthetic oil, cellosolve, paraffin, ceresin.The proposed method of manufacture of an alkaline reagent allows you to get a new device for the regeneration of the lubricating oils in which the package with the reagent and filler allows you to clear the oil more effectively by increasing the area of interaction of the oil with a reagent due to multiple porosity package with the reagent and filler. In addition, this embodiment of the package easier to use.The drawing shows a graph of alkalinity recycled motor oil during oxidation in vitro.
oC. In the melt heated to 640oC /which is above the melting temperature 40oC/ loaded porous element, pressed from shavings Al in size filetrading cartridge. The porous element is maintained in the melt 12 minutes the temperature of the melt drops to 610oC/, then the porous element is immersed in cellosolve at to= 100oC and kept until they reach ambient temperature. Then took the porous element and put it in filtrowanie cartridge.Next was comparing this agent with an alkaline reagent, obtained by the method of the prototype by fusing NaOH + SnO2(3 : 1) and fill the same filter cartridge granules alkaline reagent with filler. In filtrowanie cartridge was placed: - 112 g of an alkaline reagent NaOH + SnO and 20 g of filler Al in the form of metal rings
- 32 g of an alkaline reagent tin ore concentrate + soda lime and 92 g of the porous element of Al molded chips.Comparative laboratory tests was performed using a device on the bus. mon. USSR N 1772703, CL G 01 N 33/28, 1992 for testing lubricating oils to oxidation. The tests were carried out for 10 hours on two parallel to scost 10,65 cSt, base number - to 4.73 mg KOH/g oil and a flash point of 215oC. When this temperature was maintained test 110oC and the circulation rate of 1.3 l/min test Temperature to= 110oC due to the fact that studies have shown that when processing an alkaline reagent recycled motor oil /RMP/ to= 110oC there is a rapid stabilization of the base number without prior deep oxidation, as at other temperatures.At a temperature of, for example, to= 140oC observed sintering or mechanical destruction of the granules of the reactants, and the temperature of the test leads to undesirable excessive growth base number.Lowering the test temperature increases the duration of the test, as well as partial passivation of an alkaline reagent.Comparative tests of alkaline reagent solution and the prototype was conducted in order to clarify the changes in the alkalinity of the recycled engine oil depending on the amount of alkaline reagent in filterdesign Chuck.The studies were conducted with the number of alkaline reagent is>The results are shown in the drawing.The test level is set to stabilize alkalinity shown in the table (see the end of the description).When the kinematic viscosity of the recycled motor oil stabilized within 12 FTAs already 8 hour test using the proposed solution.The consumption of alkaline reagent Vpduring the test of the prototype is significantly higher compared with consumption in the proposed solution at the initial stage of the test.The introduction of even a small amount of alkaline reagent (8.6 g) provides stabilization base number level (3.8 mg KOH/g) higher than the acceptance value (3.0 mg KOH/g). Increased levels of alkaline reagent (112 g) in the circuit (up to 10 weight %) leads to a significant increase in the base number (15,5 ml KOH/g) of its stabilization after 12 hours of testing and, as a consequence, to the corrosive wear. Tests for corrosion resistance held at the office of Pinkevich AP-1 according to GOST. In the area of concentration of the alkaline reagent (2,3%) stabilization mode is provided after 8 hours of testing at the level of 6.2 mg KOH/gIf further testing is regenerated motor is started to descend, in the proposed solution stabilization was observed for 5 hours. In the fall alkaline number of recovered motor oils prototype tests were suspended for the purpose of conducting the audit of the working of an alkaline reagent /external inspection, weighing, checking for activity/. Alkaline reagent prototype has destroyed granules, robrady sludge granules it is not active because there is partial resinification. Alkaline reagent solutions proposed active, visible damage no. The quantity of alkaline reagent in the prototype decreased by 61% compared with the initial quantity, the quantity of alkaline reagent in the proposed solution decreased by 47%. 1. A method of manufacturing an alkaline reagent for regeneration of lubricating oil-based alloy of the metals with variable valence metal IV - V groups, deposited on a metal filler, wherein preparing a melt of the components containing metals of variable valency IV - V groups and metals of groups I - II, in which at a temperature of 10 to 70oC above the melting temperature of the alloy is immersed metal filler, made from the waste of Metalworking in the form of a porous element, and withstand the compared filler alloy is 0.1 - 10 : 1.2. The method according to p. 1, characterized in that as component containing metals of groups I - II, use the oxides, hydroxides or salts of these metals, and components containing metals of variable valency IV - V groups, use the oxides, hydroxides, salts of these metals or concentrates containing ores.3. The method according to PP.1 and 2, characterized in that as the inert environment of the use of mineral, vegetable or synthetic oil, cellosolve, paraffin, ceresin.4. The method according to p. 1, characterized in that the use of filler made of ferrous and/or non-ferrous metals, their alloys or mechanical mixtures.
FIELD: oil and gas industry.
SUBSTANCE: invention relates to the method of treatment of light hydrocarbon fractions containing sulphureous compounds and carbon dioxide, by means of contact in a counterflow absorber within a single stage with a circulating modified aqueous solution of alkanolamine regenerated to preserve a modifying additive by means of temperature desorption of carbon dioxide and sulphureous compounds. The modifying additive is sodium hydroxide in the amount of 0.005-1%, which after regeneration together with the absorbent is returned into the process. Absorbent supply into the absorber column is carried out by two flows into the upper and medium part of the column, the flow of saturated absorbent is discharged accordingly from the medium and the lower part of the absorber, flows are combined and sent for regeneration into a desorber.
EFFECT: high extent of treatment from carbon dioxide, hydrogen sulfide and other sulphureous compounds.
1 tbl, 2 ex
FIELD: oil and gas industry.
SUBSTANCE: invention is related to the sphere of hydrocarbons treatment from sulphur compounds and may be used in oil, gas and petrochemical industries. The invention is related to the method of light hydrocarbons treatment from carbonyl sulphide by its decomposition in hydrocarbon by an alkaline agent with further stripping of the alkaline agent saturated with sulphur compounds and its oxidising recovery by treatment of air oxygen in presence of the catalyst oxidising sulphur compounds. The promoter containing alkali water (NaOH, KOH) and water-soluble polar organic compounds formed during treatment of products of alkalis and acid impurities of hydrocarbon fractions interaction in presence of the polymer-based catalyst is used as the alkaline agent. Oxidising recovery of the alkaline agent saturated with sulphur content is made by air oxygen at temperature of 30-80°C and pressure of 3.0 MPa in presence of polymer-based catalysts, at that the above alkaline agent (promoter) has total alkalinity not less than 5 wt % and content of water-soluble polar compounds and acid impurities in it is not less than 1.7 wt %.
EFFECT: increasing purification degree of liquefied hydrocarbon gases, in particular propane-propylene fraction from carbonyl sulphide (COS).
SUBSTANCE: invention relates to a method of removing hydrogen sulphide from decomposition gases from an apparatus for atmospheric-vacuum or vacuum distillation of oil, which includes burning decomposition gases, formed from heating mazut, in a furnace. Decomposition gases from a multi-step steam ejector-type vacuum generating system after the condenser of a cooler and (or) a first ejection step and (or) other ejection steps are fed into a barometric container and then into an absorber, into which, in order to spray contact devices, a regenerated absorbent is fed, wherein the pressure maintained in the absorber is equal to 1.01-1.05 kgf/cm2, after absorption the saturated absorbent with hydrogen sulphide content of 0.1-5.0 wt % is removed from the absorber for regeneration, which is carried out either within the apparatus or on refining apparatus or apparatus for removing impurities of straight distillates or other products, the cleaned decomposition gases from the absorber are fed for burning into a mazut heating furnace before a vacuum column.
EFFECT: removing hydrogen sulphide from decomposition gases.
3 cl, 4 dwg, 2 tbl
FIELD: oil and gas industry.
SUBSTANCE: invention is referred to method for treatment of hydrocarbon fractions from sulphur-containing compounds, wherein hydrocarbon fractions are treated by their mixing with ammonia water, division of the receives mixture into treated hydrocarbon fractions and waste ammonia water, which is regenerated and thereafter supplied again to treatment of hydrocarbon fractions. Regeneration of waste ammonia water is performed by its treatment from sulphur-containing compounds, rectification with produced waste water and gaseous final product sent to scrubber, receipt in the scrubber of treated gaseous ammonia, which is subject to absorption by treated waste water in a reservoir for ammonia absorption with receipt of regenerated ammonia water.
EFFECT: improving ecological safety of hydrocarbon fractions treatment, easy and reliable disposal of waste ammonia water.
FIELD: technological processes.
SUBSTANCE: invention discloses apparatus for acid tar processing, which has a container for raw materials, pipelines, pumps, device for heating of tar, reactor vessel with neutralizer and separator, additionally it comprises flow and analysis of pH sensor and soaking chamber, and tank for raw material is connected via pipeline equipped with pump, with means for heating of tar in form of heat exchanger, which output is connected with reactor with mixer via pipeline in which a flow and analysis of pH sensor, sensor output is connected with flow regulator installed in pipe communicating vessel with neutralizer with reactor in form of cavitation mixer outlet is connected to input in soaking chamber, which output is connected by pipeline equipped with pump, with separator made up of three-phase centrifuge.
EFFECT: obtaining acid tar oils, suitable for use as raw material for bitumen production and oil fuel.
1 cl, 1 dwg
FIELD: technological processes; oil and gas industry.
SUBSTANCE: invention discloses apparatus for acid tar neutralization, which has container for raw materials, pipelines, pumps, device for heating of tar, reactor, vessel with neutralizer and dehydrator, at that, it additionally comprises flow and pH analysis sensor and soaking chamber, and tank for raw material is connected via pipeline equipped with pump, with means for heating of tar in form of heat exchanger, which output is connected with reactor in form of cavitator via pipeline equipped with flow and pH analysis sensor, which output is connected with flow regulator installed in pipe communicating vessel with neutralizer with cavitator, which outlet is connected to input in soaking chamber, which output is connected by pipeline equipped with pump, with dehydrator output, inside of which there is a steam supply coil.
EFFECT: obtained after processing oil products are used as raw material for bitumen production and oil fuel.
1 cl, 1 dwg
SUBSTANCE: invention relates to a method of alkaline demerptanisation of hydrocarbon material with subsequent oxidation-catalyst regeneration of mercaptide-saturated alkaline agent or direct oxidation of mercaptans contained in hydrocarbon raw material with atmospheric oxygen in presence of an alkaline agent and a heterogeneous catalyst for oxidation of sulphur compounds. Method is characterised by that alkaline agent used is aqueous solution of alkali, containing polar organic compounds, formed due to deep oxidation of mercaptides by treatment of mercaptide-containing alkaline solution with atmospheric oxygen in presence of highly active heterogeneous catalyst KSM-X on a polymer support. High activity of KSM-X catalyst during oxidative regeneration mercaptide-containing alkaline solution and efficiency of obtained alkaline agent due to water-soluble polar oxygen-containing products of oxidation mercaptides contained therein simplifies technology of process of demercaptanisation of hydrocarbons, significantly reduces size of process equipment, reduces capital and operating costs for its implementation as compared to existing methods.
EFFECT: demercaptanisation of hydrocarbon material.
1 cl, 2 tbl, 2 exl
FIELD: technological processes.
SUBSTANCE: present invention relates to sulphur compounds in hydrocarbon flow extracting method. Method involves supply of hydrocarbon flow containing sulphur compounds, into preliminary washing zone, containing ammonia, extraction of hydrocarbon flow subjected to preliminary washing from preliminary washing zone and supply of hydrocarbon flow subjected to preliminary washing into mass transfer zone for extraction of one or more thiol compounds from hydrocarbon flow subjected to preliminary washing. Said mass transfer zone includes hollow-fiber membrane contactor, and thiol compounds removal takes place through pores in pipes wall.
EFFECT: said method enables to minimize number of equipment required for thiol compounds removal, and wherein liquefied petroleum gas or light naphtha have required characteristics.
11 cl, 3 dwg
FIELD: mechanical engineering, restoration of machine parts.
SUBSTANCE: method is realized by applying at least one coating by means of electric spark alloying. Wear resistance coating is applied with use of electrode of boron alloyed intermetallide Ni3Al containing, mass %: Al, 2 - 15; B, 0.02 - 02; Ni, the balance. In variants of invention electrode contains in addition dispersed particles of Si3 N4. Before applying on part layer of wear resistant coating, nickel layer with thickness 20 - 50 micrometers is applied as intermediate adhesion barrier. Coated parts are subjected to mechanical working. Restoration is realized for parts with wear degree up to 100 micrometers or with wear degree 100 - 300 micrometers.
EFFECT: possibility for restoring parts, improving their wear resistance and increasing adhesion strength of applied coating with base material of part.
6 cl, 3 tbl, 3 ex
FIELD: processes and equipment for joining by rolling different type liquid and solid metals, possibly manufacture of clad metallic sheets and articles in different branches of industry.
SUBSTANCE: method comprises steps of pouring melt metal onto surface of different solid main metal coated with flux for soldering; rolling metals under pressure for rapid cooling of melt metal, crystallizing it and joining with surface of solid main metal due to metallurgical joining between two or more metals. Plant for performing the method includes mounted according to desired order: machine for uncoiling sheet metal from coil; vessel with soldering flux; unit for drying and heating; casting nozzle; rolls with inner cooling and machine for coiling sheet metal. Ladle for melt metal is arranged over casting nozzle. Main frame of plant is arranged under said ladle.
EFFECT: enhanced strength of different metals joints, low cost of products, improved efficiency, high quality of sheet metal, relatively small cost of plant, decreased power consumption.
14 cl, 6 dwg, 3 ex
FIELD: many branches of industry; methods of fritting and polymerization in the furnace of the powder coatings.
SUBSTANCE: the invention is pertaining to the method of heating and fritting of the polymeric powder coatings applied on articles and may be used in many branches of industry for painting articles of the various configurations. The method includes: charging by batches of the articles in the furnace, heating with realization of polymerization of their powdery coatings and refrigeration. Before the heating operation in the working space of the furnace create rarefaction by means of preliminary switching on the ventilation and circulation system. After the heating up to the preset temperature conduct the periodical switching-on / switching-off of the electric heater of the furnace. At that the blowout of the air from the furnace is conducted. For keeping the preset temperature over the whole operational volume of the furnace through at least one pilot hole in the furnace the portions of the cold air are periodically pumped in. Then conduct refrigeration, at which the electric heater is finally switched off, and the air saturated with the products of polymerization is removed from the furnace, create the rarefaction and feed the new batch of the cold air into the furnace. For realization of the heating they use the electric heater made out of the steel sheets and the square-shaped metallic tubes. The tubes have holes used for arrangement in them of the tubular rods supporting the spirals. The tubular rods supporting the spirals of the electric heater are made out of the mullitesiliceous ceramics. The technical result of the invention is improvement of the quality of the articles treated in the furnace with simultaneous improvement of the process of heating of the furnace, the air ventilation and circulation.
EFFECT: the invention ensures improvement of the quality of the articles treated in the furnace at simultaneous improvement of the process of heating of the furnace, the air ventilation and circulation.
8 cl, 3 dwg, 1 ex
FIELD: foundry, centrifugal casting in particular; manufacture of multi-layer vessels, pipe lines, bottles, connecting parts and other articles.
SUBSTANCE: proposed method includes placing the thermit mixture in cavities of article, followed by rotation, initiating of exothermic reaction, melting of thermit mixture, cooling of external surface of article and crystallization of molten thermit mixture. Thermit mixture contains additionally fluid material. Cooling of external surface of article is continued till temperature of its internal surface gets equal to melting point of metal of article.
EFFECT: reduced thickness of coat; improved control of heat removal.
FIELD: method of application of metal coats on detachable contact connectors.
SUBSTANCE: proposed method is used for stabilization of contact resistance of connectors at level of initial assembly during entire period of operation in parts made from copper, aluminum and their alloys during assembly, operation and repair of electrical plants and plants manufacturing electrical equipment. Proposed method includes cleaning and degreasing the contact surfaces, applying liquid flux on these surfaces, preheating the surfaces and applying the metal coat; preheating is continued to temperature of 40-45C; metal coat is applied by means of local contact fusion and gallium alloy having melting point not above 30C is applied as metal coat at thickness not exceeding 0.1 mm.
EFFECT: reduction of contact resistance.
6 cl, 1 dwg
FIELD: electron-beam surfacing of flat and cylindrical surfaces, possibly manufacture of new parts and restoration of worn surfaces of parts operating at condition of intensified abrasive wear in combination with impact loads.
SUBSTANCE: in order to enlarge manufacturing possibilities of method, on surface of welded-on article melting zone by means of electron beam is created. Powder composition material for surfacing is fed to melting zone. Surfaced article is moved and powder material for surfacing is fed normally relative to motion direction of article. As coating is applied unfocused electron beam is used for acting upon surface of said coating without supply of material for surfacing. It provides separation of dispersed particles of strengthener from solid solution and formation of multimodal structure of surfacing along its whole thickness.
EFFECT: enlarged manufacturing possibilities of method.
1 dwg, 1 ex
SUBSTANCE: invention concerns method of operating layers receiving on surfaces of hollow barrels and can be used for bimetallic sleeves manufacturing with coating simultaneously on internal and external surfaces or only on external surface, and also for such details recovery. In detail wall there are implemented radial canals, then sintered batch is placed in its chamber. Detail is implemented lengthwise less than matrix length and installed with specified radial clearance into matrix by means of end cover with forming of end air clearances. Assembly is rotated about axis with simultaneous heating till mixture melting temperature. In covers there is implemented at least one hole connecting matrix chamber to atmosphere on radius equal to difference between external detail surface and hole. Heating is ended as only from hole it is start splash of melted metal.
EFFECT: covering refining at the expense of probable air inclusion formation in working layer of weld removal and discard is eliminated.
SUBSTANCE: invention relates to method of coating on steel strip. Steel strip allows following composition, wt % C≤1.6, Mn 6-30, Al≤10, Ni≤10, Cr≤10, Si≤8, Cu≤3, Nb≤0.6, Ti≤0.3, V≤0.3, P≤0.1, B≤0.01, N≤1.0, iron and unavoidable admixtures - the rest. Primarily on steel strip it is applied aluminium layer, then it is implemented annealing, in process of which it is formed interlayer, consisting, mainly, from aluminium and iron, and it is coated molten metal, consisting of Al/Si-alloy, aluminium, zinc or zinc alloy.
EFFECT: obtaining steel strips with metallic coating, allowing high corrosion stability and well welding characteristics.
10 cl, 4 dwg
SUBSTANCE: method includes treatment of contact surfaces to remove oxide film, heating of contact surfaces and application of metal coating from gallium alloy by local contact melting. Removal of oxide film is made by chemical treatment of contact surfaces with the first etching solution with its subsequent neutralisation and cleaning of contact surfaces from etching results. Then mechanical cleaning of contact surfaces is carried out by polishing, afterwards contact surfaces are heated, metal coating of gallium alloy is applied in the medium of the second etching solution, and subsequent neutralisation of remains of the second etching solution is carried out.
EFFECT: improved loading capacity of knock-down electric contact joint during transfer of electric energy without change in design of contact joint, while the temperature mode of operation is within the permissible limit.
8 cl, 2 ex
SUBSTANCE: steel tool or carbide tool treatment method involves application of diffusion coating by saturation of steel or carbide tool in eutectic lead-lithium melt with addition of copper and nickel so that the coating is obtained. After application of coating the tool is strengthened by its being aged on material with hardness of 10 to 18 HRCe at value of contact stresses of 2000 to 5000 MPa during 2-5 minutes.
EFFECT: obtaining the coating having high stability to adhesion hardness, mechanical abrasion and deformation at maintaining positive operating properties of nickel-copper coating.
2 tbl, 2 ex