The low-viscosity marine fuel
(57) Abstract:The invention relates to fuel compositions. Provides for low-viscosity marine fuel and is intended for use in medium-speed and high-speed diesel engines. In the proposed composition as distillates direct distillation of crude oil used fraction of atmospheric gasoil 240-450oC, fraction of the first vacuum ring 200-400oC, as distillates coking - faction 160-400oC, as a distillate of the catalytic cracking fraction gas oil catalytic cracking 180-400oWith ratio, wt.%:
atmospheric gas oil fraction 240-450oC - 5-15
the first vacuum wrap fraction 200-400oC - 5-25
the oil coking fraction 160-400oC - 5-30
gasoil cat.cracking fraction 180-400oC - 5-60
fraction of diesel fuel 160-360oC - 100
The use of a composition allowed us to increase the output of TMS by 16% and to improve its operational properties: lubricity, heat of combustion, corrosion aggressiveness. table 4. The invention relates to fuel compositions, provides for low-viscosity marine fuel and is luchetta in the following.Known composition of the low-viscosity marine fuel (TMS), obtained by compounding vacuum gasoil, diesel fractions 160-300oC units at TC with a light gas oil coking fraction 160-300oC in the ratio 5:40: 45:10, 20:25:25:30 (Refining and petrochemicals. 1982, No. 9, S. 4).However, in this composition are low-boiling fraction, which leads to lower cetane number and exit of fuel. The use of distillate coking, wikipaedia within 160-300oC contributes to poor binding capacity and corrosive fuel.The closest in technical essence and the achieved result is the composition of TMS, including distillate diesel fuel fraction 160-360oC installation at a fraction of 190-280oC with catalytic cracking unit and faction 190-290oC installation of coking in the ratio of 1:1:1.However, in this composition are also used low-boiling fraction, which leads to low cetane number of TMS (42%), and reducing fuel oil. The use of low-boiling fractions contributes to the deterioration of the operating characteristics of TMS, namely lubricity and corrosion Eisenia output TMS, improving lubricity, heat of combustion and corrosion resistance.The solution of this task is mediated by a new technical result - obtaining compositions TMS by compounding atmospheric gas oil fraction 240-450oC, the first vacuum ring faction 200-400oC, coking distillate fraction 160-400oWith and catalytic cracking fractions 180-400oC, with diesel fuel fraction 160-360oC in the ratio, wt.atmospheric gas oil fraction 240-450oC 5-15
the first vacuum wrap fraction 200-400oC 5-25
the coking distillate fraction 160-400oC 5-30
the distillate of the catalytic cracking fraction 180-400oC 5-60
diesel fuel fraction 160-360oC to 100
Distinctive features of the proposed technical solutions are: allocation of oil and catalization fractions of a given fraction composition and use them in a certain ratio to obtain a composition TMS:
Atmospheric gas oil fraction 240-450oC 5-15
The first vacuum wrap fraction 200-400oC 5-25
The coking distillate fraction 160-400oC 5-30
The distillate of the catalytic cracking fraction 180-400oC 5-60
Di the characteristics of the components of the low-viscosity marine fuel, in table.2 - component composition the proposed composition TMS. In table.3 and 4 as TMS and its operational characteristics.The use of the claimed compositions TMS was significantly increased (16 wt. ) output TMS, due to the exclusion of the stage selective treatment and a significant increase in end-boiling fuel. TMS obtained according to the invention, has better performance than the prototype on the cetane number pour point, significantly improve the operational characteristics of TMS.Lubricity fuel when tested in CSM increased from 52 to 62, reduced corrosion loss began when testing it on the device Pinkevich and the corrosivity of TMS under conditions of condensation of water according to GOST 18597-73 (PL. 4). Composition TMS obtained according to the invention, is characterized by a higher, che prototype, calorific value.From the data table. 3 shows that the change in the ratio of fractions leads to the deterioration of the quality claimed TMS.The increase of the content in the composition of the heavy distillate fractions stated above leads to the increase in the pour point of the fuel and p THE iodine number, and gas oil catalytic cracking lower cetane number. When used in composition, as heavy distillates, distillates coking below the stated ratios leads to increased use of scarce diesel fuel and reduce the output of the low-viscosity marine fuel. The low-viscosity marine fuel containing distillates direct distillation, coking and catalytic cracking, characterized in that as distillates direct distillation of crude oil contains a fraction of atmospheric gasoil 240 - 450oAnd the fraction of the first vacuum ring 200 400oWith as coking distillate fraction 160 400oWith, as a distillate of the catalytic cracking fraction of catalytic cracking gas oil 180 - 400oWith the following ratio of components, wt.Atmospheric gasoil fraction 240 450o5 15
The first vacuum wrap, fraction 200 400o5 25
The oil coking fraction 160 400o5 30
The catalytic cracking gas oil fraction 180 400oC 5 60
Fraction of diesel fuel, 160 360oWith Up To 100
FIELD: petrochemical industry; fuel compositions and methods of their production on the basis of petroleum heavy fractions.
SUBSTANCE: the invention is pertaining to fuel compositions and methods of their production on the basis of petroleum heavy fractions, and also to utilization of oily wastes and by-products of petrochemical industry. The fuel composition contains 1-7 % of recovered oil products, 3-9 % of the heavy gas oil of a catalytic cracking or the heavy gas oil of the time-lagged carbonization, or the heavy pyrolized resin, or a vat residue of production of butyl alcohols, and the rest - the residual fuel oil. The composition is produced by a premixing of 10-70 % of recovered oil products with 30-90 % of the heavy gas oil of the catalytic cracking or heavy gas oil of a time-lagged carbonization, or the heavy resin, or the vat residue of production of butyl alcohols at the temperature of 20-70°C. The received mix is then commixed with the residual fuel oil at the temperature of 25-50°C with production of a quantitative structure of the above-stated fuel composition. Realization of the given invention allows to produce a stable fuel composition, to effectively utilize the recovered oil products, to use as stabilizers of the fuel mixture the available products of a petroleum and petrochemical rerefining, to reduce power inputs, to improve an air medium ecology, to obtain an economic effect at the expense of utilization of the oily wastes and by-products of oil refining and petrochemical industry and production of additional volumes of the residual fuel oil.
EFFECT: the invention ensures production of a stable fuel composition, effective utilization of the recovered oil products, use of the available products of a petroleum and petrochemical rerefining as stabilizers of the fuel mixture, reduced power inputs, improved ecology, an economic efficiency.
2 cl, 2 ex, 5 tbl
FIELD: heat supply.
SUBSTANCE: the invention is pertaining to the field of the heat supply industry and is intended for preparation of fuel, in particular, petroleum for use in the boiler rooms being a source of a heat supply of remote settlements. The installation contains: a heater-evaporator, a heat exchanger for heating up a feed stock, the fuel feed stock pump and containers of the feed stock and collection of the light fractions. At that the installation is supplied with the second feed stock pump and three in series connected to each other heat exchangers of the light fractions condensation, the first and second feed stock pumps are connected by their inlets to a feed stock container. The outlet of the first feed stock pump is connected through the feed stock heating up heat exchanger to the heater-evaporator, which by its vapors outlet is connected to the first out of three in series connected to each other heat exchangers, the last of which is connected to its container of the light fractions condensate collection. The outlet of the second feed stock pump is connected in parallel to the heat exchangers of condensation of the light fractions and through them to the heater-evaporator. Each of heat exchangers in parallel connected to each other is supplied with a thermoregulator to keep in it a constant temperature of condensation of the light fractions vapors. The first and second of in series connected heat exchangers are connected through the placed in the feed stock container coiled pipes each to its container of the light fractions collection. The heater- evaporator through the feed stock heating up heat exchanger is connected to the container for fuel collection. In the result the invention allows to upgrade quality of the fuel preparation for the boiler plants at simultaneous production of several light fractions of the feed stock, mainly petroleum. The invention ensures improvement of the quality of the fuel preparation for the boiler plants at simultaneous separate production of several light fractions of a feed stock, mainly petroleum.
EFFECT: the invention ensures improvement of the quality of the fuel preparation for the boiler plants at simultaneous separate production of several light fractions of the feed stock, mainly petroleum.
FIELD: petroleum processing and petrochemistry.
SUBSTANCE: invention relates to low-size apparatuses for production of light and heavy petroleum products from petroleum feedstock. Plant comprises heat-insulated evaporation vessel provided with electroheating ring, heat-exchanger coupled with evaporation vessel, petroleum product storage vessel, and valves, said evaporation vessel is provided with secondary heating ring and said heat-exchanger is constituted by two different-volume vessels, which are connected over coils to petroleum product storage vessel also provided with heating ring. Minor heat-exchange vessel communicates with evaporation vessel space through perforated pipe and major one communicates with evaporation vessel and minor heat-exchange vessel through pumps.
EFFECT: simplified structure and increased output of motor distillates.
1 dwg, 1 tbl
FIELD: petroleum processing and motor-car industry.
SUBSTANCE: gasoline contains up to 40% alkylate, 2-45% isomerizate, 5-45% aromatic C7-C9-hydrocarbons, up to 20% high-octane oxygenates, especially dialkyl ether and/or aliphatic C1-C5-alcohol, 0-2.5% N-monomethylalanine, 0-100 mg/kg additive based on ferrocene or 1,1'-diethylferrocene, or α-hydroxyisopropylferrocene, and to 100% of catalytic reforming gasoline.
EFFECT: increased anti-knock property, combustion heat, and vapor pressure to facilitate rapid engine start and maximize effective use of engine power.
4 cl, 2 tbl
FIELD: petroleum processing.
SUBSTANCE: invention relates to production of petroleum products used as feed stock in fractionation-mediated secondary processing processes as well as hydrocarbon binder in production of solid domestic and industrial fuels from peat, coal dust, and woodworking waste. Petroleum product production process envisages compounding crude oils and/or mixtures of middle and heavy distillates obtained in primary petroleum distillation in low-scale refineries. Distillates are produced from stabilized petroleums containing distillate fractions boiling away at 350°C to at least 45 wt %. Crude oils are compounded with distillates in weight proportion 7:(2.5-3). Advantageously, starting material is mixture of crude oils, gas condensate, and middle and heavy distillates from atmospheric and atmospheric-vacuum petroleum distillation. Distillates are taken off to 30% of the volume of hydrocarbon blend or hydrocarbon blend and crude oil. Blend may be supplemented by functional additive.
EFFECT: optimized proportions when mixing crude oil with distillates so that crude oil fractionation processes are stabilized.
8 cl, 4 ex
FIELD: petroleum chemistry, chemical technology.
SUBSTANCE: invention relates to a method for processing sludge. Method for processing sludge involves their treatment from sulfuric acid and thermal cracking carried out in the presence of gas-carrier in the mass ratio oil-like fraction : gas-carrier = 1:(0.05-0.1) at temperature 400-550°C. Nitrogen is used as a gar-carrier. Invention allows enhancing safety of the process and to form neutral medium that shows favorable effect on component composition of prepared liquid fuel.
EFFECT: improved processing method.
2 tbl, 4 ex
FIELD: petroleum chemistry, chemical technology.
SUBSTANCE: hydrocarbons with high octane number are prepared from mixtures consisting of n-butane and isobutene, such as butanes from gaseous deposits. Method involves section for skeletal isomerization, section for dehydrogenation of paraffins, section for selective hydrogenation of butadiene and two sections for conversion of olefins. In these sections isobutene is converted selectively firstly by dimerization and/or esterification and then linear butenes are converted by alkylation. Then products from these two sections are combined to obtain product possessing with excellent properties for automobile engine (octane number, volatility and distillation curve).
EFFECT: improved preparing method of hydrocarbons.
8 cl, 1 dwg, 2 tbl, 1 ex
FIELD: petrochemical industry; methods and devices of the superlight fuel oil production.
SUBSTANCE: the invention is pertaining to the field of petrochemical industry, in particular, to the method and the device for production of the superlight fuel oil. The superlight fuel oil is used as the technological fuel at the industrial enterprises, at heat supply enterprises, and also by the sea and river fleet ships. The superlight fuel oil contains 25-50% of the stabilized gaseous condensate with the contents in it of the fractions C1-C4 in the amount of no more than 0.3-1.0 % and the rest is the fuel oil of the furnace brand М100 and-or М40. The method of production of the fuel oil provides for mixing of the heated up to 50°C fuel oil of the furnace brand Ml00 and-or М40 with the stabilized gaseous condensate with the temperature of 20°C under pressure up to 3 atm in the given ratio in the chamber of the components mixing. Then the produced mixture is fed into the emulsification device, where it is subjected to the ultrasonic treatment for production from the fuel oil mixture of the finely dispersed emulsion. The subsequent remixing of two and more streams of the finely dispersed emulsion of the fuel oil mixture with the permanently maintained temperature pf 50-60°C is conducted in the chamber of the intensive mixing due to organization of intermixing by the counter currents under pressure and transportation of the target product into the containers of the accumulators integrated by the system of circulation, subjecting the end product to the constant circulation under the pressure of up to 2 atm and to passing through the emulsification device. The invention also presents the installation of production of the superlight fuel oil, which contains the components supply systems and the mixing chamber. The supply system of the gaseous condensate and the supply system of the fuel oil each contains: the pump; the leak valve and the consumption indicator for the components feeding into the mixing chamber; the ultrasonic emulsification device; the chamber of intensive mixing with the preheating; the accumulator consisting of the container, the leak valve of an end product with the consumption indicator and the leak valve of the feeding of the superlight fuel oil to the customer. The system is integrated with the circulating system. The circulating system includes additional container, the pump, the leak valve, the consumption indicator. The technical result of the invention is the increase of the flowability and the service life of the produced product, improvement of the ecological indexes of the fuel oil per a unit of the heat capacity due to application of the simple production equipment and the optimal composition of the fuel oil.
EFFECT: the invention ensures the increased flowability and the service life of the produced fuel oil product, improvement of ecological indexes of the fuel oil per a unit of the heat capacity.
3 dwg, 1 tbl
FIELD: petroleum processing and petrochemistry.
SUBSTANCE: invention relates to lead-free low-emission gasoline for internal combustion engine and to a method for reducing emissions into atmosphere. Lead-free low-emission gasoline for internal combustion engine is characterized by octane number (R+M)/2 lower than 86.7 and level of sulfur below 40 ppm. Method of reducing emissions of at least one of hydrocarbons, carbon monoxide, and nitrogen oxides out of automobile internal combustion engine comprises: (a) production of lead-free low-emission gasoline, which on burning in engine produces reduced emissions of at least one of hydrocarbons, carbon monoxide, and nitrogen oxides as compared with comparable lead-free gasoline with minimum octane number 87; and (b) fueling of engine with indicated low-emission gasoline. Described is also a method for fueling of automobile engines at reduced total emissions.
EFFECT: considerably reduced emission of hydrocarbons, carbon monoxide, and nitrogen oxides.
14 cl, 4 dwg, 3 tbl, 8 ex
FIELD: petroleum processing.
SUBSTANCE: heavy petroleum fuel designed for use in marine and boiler installations contains, wt %: selective oil purification extract 3-10, heavy catalytic cracking gas oil 3-10, vacuum gas oil 5-10, goudron or long residuum 3-10, straight-run 10-20, visbreaking heavy petroleum fraction to 100%. Fuel can further comprise depressant in amount 0.02-0.10%. Properly selected components and their proportions enable production of stable heavy petroleum fuel.
EFFECT: increased stability of fuel, improved its viscosity characteristics, and enlarged assortment of produced heavy marine and boiler fuels.
2 cl, 2 tbl