Fuel for high speed diesel engines
(57) Abstract:The invention relates to the field of automotive industry, in particular to the composition of the fuel intended for use in high-speed diesel engines. Offered the fuel composition based hydrotreated diesel fuel, wikipaedia in the range of 180-360oC containing straight-run fraction of diesel fuel, wikipaedia in the range of 160-240oC in the amount of 5-20% and dewaxed diesel fraction, wikipaedia in the range of 200-320oC in the amount of 5-50%. The claimed composition fully complies with the requirements of environmentally friendly diesel fuels. table 1. The invention relates to the field of automotive industry, in particular to the composition of the fuel intended for use in high-speed diesel engines.The modern trend of the automotive industry is the increasing number of vehicles equipped with diesel engines, including cars.Known diesel fuel for the Northern regions of the country on the basis of denormalization obtained by the dewaxing of diesel fuel on a molecular sieves (process Parex) (1).ToplioC 10
Faction wikipeida at 200-320oC The Rest.Said fuel under the condition of imposing its composition depressants can be used as diesel fuel in the winter.However, resources denormalization limited.To extend the resources of diesel fuel not only winter and summer both in our country and abroad apply a welcome inclusion in the standard diesel fuel for light gasoline fractions. So, it is known diesel extended fractional composition, which contains, by weight. (2):
Fraction of gasoline, wikipeida in the range of 60-180oC 20-30
Hydrotreated straight run diesel fraction, wikipeida in the range of 180-400oC 70-80
However, the content in the fuel of the gasoline fraction affects samovosplameneniem diesel fuel, reduces the viscosity, resulting in not provided lubricity positiioned pairs of the fuel pump. In turn, the high-boiling fraction increase the opacity of exhaust gases and the amount of carbon monoxide emissions.To extend the resources of the diesel fuel industry produced diesel fuel weighted fractional cost in the range of 240-400oC 10-20
Dewaxed diesel fraction, wikipeida in the range of 300 360oC 5-10
Component hydrotreated standard diesel fuel fraction 180-360oC The Rest.Diesel fuel weighted fractional composition differs from the standard summer diesel fuel higher end of the boil. However, the involvement in the composition of diesel fuel heavier oil fractions leads to an increase in the content of sulfur toxicity and exhaust smoke.Modern requirements to dialnum fuels determine the restrictions not only on the sulfur content of 0.05% to 0.1% and the content of aromatic hydrocarbons of not more than 20% as this will reduce smoke and emissions, improving the environmental properties of diesel fuels.The invention is directed to creating an environmentally friendly diesel fuel for high speed diesel engines.Proposed diesel fuel for high speed diesel engines, comprising, by wt.Straight-run fraction of diesel fuel, wikipeida in the range of 160-240oC 5-20
Dewaxed diesel fraction, wikipeida in the range of 200-320oC 5-50
is.The combination of straight and dewaxed fractions of diesel fuel, wikipaedia in the stated temperature ranges, and obtaining diesel fuel in deep desulfurization process allowed us to obtain new fuel for high speed diesel engines, meets the requirements of GOST on environmentally friendly fuel.The inventive composition is prepared by compounding fractions of diesel fuel coming from the process units.Characterization of components of the proposed composition.1. Straight-run fraction of disalvio topliva, wikipeida in the range of 160-240oC, shown on the plants AT or ED.The flash point in closed crucible is not below 35oC
The content of H2S No
2. Dewaxed diesel fraction of denormalized process PAREX
50% boils at a temperature of 240-260o< / BR>96% boils at a temperature of 280-320o< / BR>The flash point in closed crucible, not less than 60oC
The pour point of not lower than -45oC
Hydrotreated diesel fuel, wikipaedia in the range of 180-360oC, is the product of deep hydrodesulphurization unit with installation type LCH 2 is 340-360oC
The content of H2S No
The sulphur content not exceeding 0,2%
The flash point in closed crucible, at least 40oC
Of the above components was prepared 3 sample clean fuel for high speed diesel engines brand DLAC that fully complies with the requirements of TU 38.1011318-90.The composition of the prepared samples and the test results are presented in the table. As can be seen from the table, clean diesel fuel may contain 5 to 20% straight-run fractions. The increase of its content in the fuel is higher than 20% will result in increased sulfur content (>0.1%), and reduced levels of straight-run fractions would unduly stock quality on this indicator (less than 0.05%).Optimum is also involvement in the composition is 5 to 50% of denormalization process PAREX. The increase of its content in fuel more than 50% will not allow the fuel required quality for cetane number (not less than 45%) and the content of aromatic hydrocarbons of not more than 20%). The decrease in the content of denormalized in the composition of the fuel to less than 5% leads to an increase in sulfur content and higher cetane number, and therefore, Damnoen diesel fuel, containing straight-run diesel fraction, and dewaxed diesel fraction, characterized in that it contains straight-run diesel fraction, wikipaedia in the interval 160 240oC, dewaxed diesel fraction, wikipaedia in the range of 200 to 320oWith, and hydrotreated diesel fuel, wikipaedia in the interval 180 360oWith a sulfur content of 0.03 to 0.1 wt. in the following ratio, wt.Straight-run fraction of diesel fuel, wikipeida in the range of 160 - 240o5 20
Dewaxed diesel fraction, wikipeida in the range of 200 to 320o5 50
Hydrotreated diesel fuel, wikipaedia in the interval 180 360oWith Up To 1001
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