Start of section
Production, amateur
Radio amateurs
Aircraft model, rocket-model
Useful, entertaining 		Stealth Master
Electronics
Physics
Technologies
Inventions 		Secrets of the cosmos
Secrets of the Earth
Secrets of the Ocean
Tricks
Map of section
Start
Forum
Use of the site materials is allowed subject to the link (for websites - hyperlinks)

Navigation: =>

Home / Patent catalog / Catalog section / Back /

USEFUL ADDITIVES FOR PETROL AND OTHER MOTOR FUELS
INVENTION
Patent of the Russian Federation RU2057787

COMPOSITION OF HYDROCARBON FUEL

COMPOSITION OF HYDROCARBON FUEL

The name of the inventor: Rossinsky VR; Kozlov SI; Makhov BP; Shevchenko V.K.
The name of the patent holder: Limited Liability Partnership "Compromise"
Address for correspondence:
Date of commencement of the patent: 1994.10.10

A composition of a hydrocarbon fuel for a diesel engine based on a fuel of a wide fractional composition (gas condensate), in which additives are introduced to improve fuel economy and improve engine efficiency, to ensure its stable operation with light fuel, reduce the operating temperature of the power system and prevent coking of atomizer nozzles. Nitrates of organic alcohols, copolymers of higher esters of carboxylic acids, metallopolymers of organic acids and polymethylsiloxanes.

DESCRIPTION OF THE INVENTION

The invention relates to hydrocarbon fuels, mainly of gas condensate origin.

Hydrocarbon fuels of a wide fractional composition (SHF) containing gasoline and kerosene gas oil fractions are known [1]. However, these fuels have not been practically realized due to the scarcity and high cost of gasoline fractions.

Natural gas condensates after physical stabilization, including sludge from water and impurities, and degassing are a mixture of liquid hydrocarbons with a boiling range of 30-380 о С and differ from fuels of BPS with a higher content of gasoline fractions (up to 90%), a lower cetane number, Density, kinematic viscosity, etc. (Table 1).

Attempts to use low-stable stable gas condensates as fuel for diesel engines have not yielded positive results due to unsatisfactory starting qualities, unstable and extremely hard work, which led to emergency wear and premature failure, especially in Siberia and the Far North.

The purpose of the invention is to expand the varieties of winter and arctic diesel fuels.

This is achieved by the fact that the composition of hydrocarbon fuels of wide fractional composition containing gasoline and kerosene gas oil fractions further contains nitrates of organic alcohols or a mixture thereof, a copolymer of higher carboxylic acid esters with vinyl monomers, a metallopolymer of organic acids and polymethylsiloxane at the following component ratio,

  • Nitrates of organic alcohols or their mixture with the number of carbon atoms C 3 -C 18, for example C 5 -C 8 alcohols, the limiting temperature of thermal decomposition of which in order to achieve the maximum initiating effect of the action and their minimum concentration is within the distillation range of 50-75% of stable gas condensate 2 and 3) 0.01-0.5;
  • A copolymer of higher carboxylic acid esters having a number of carbon atoms of C 8 -C 24 with various vinyl monomers having an average molecular weight of 1,000 to 10,000, for example a copolymer of alkyl methacrylate C 12 -C 20 with vinyl acetate, known as the DAP depressant additive TU 38.401-58-20 -91 (Table 4) 0.01-0.3;
  • Higher alkyl methacrylates are used in the copolymerization, the alkyl radical of which contains from 8 to 24 carbon atoms;
  • A metallopolymer of organic acids with the number of carbon atoms C 8 -C 21 and a molecular weight of 10,000-30000, for example the anti-static additive Sigbol TU 38.101471-78 for reducing fire risk with the use of jet fuels, the metals of the second, sixth, seventh and eighth groups 0,00005-0, 1;
  • Polysiloxane with a kinematic viscosity of up to 600 mm 2 / s at 100 ° C, for example, an antifoam additive PMS-200A to motor fuels OST 6-02-20-79, hydraulic fluids of APS and AJ-170 of general chemical composition (RSiO) x , where x = 3.12 0.00005-0.1;
  • Hydrocarbon fuel up to 100.

The composition comprises, as a hydrocarbon fuel, a stable gas condensate with a gasoline fraction content of up to 90 wt.

The hydrocarbon fuel composition is prepared in universal mixers in series in two stages at 25-30 ° C and atmospheric pressure.

The first stage involves the preparation of an additive package by mixing, in a nitrate of organic alcohols, in series, a copolymer of higher carboxylic acids with a monomer (vinyl acetate) of a metal polymer and a polymethylsiloxane, for example, in a ratio of 150: 25: 1: 1, respectively, for 20-30 minutes, respectively.

The second step is introduction into the hydrocarbon fuel and mixing for 10-20 minutes of the additive package, for example at a concentration of 0.37 wt. (See Table 5). The maximum concentration of the additive package in the fuel is determined depending on the requirements for the quality indicators in the technical specification for hydrocarbon fuel.

Tests of the proposed hydrocarbon fuel composition showed that it also has the ability to inhibit coke deposits and coking of nozzle atomizers caused by the use of light fraction fuels, including gas condensates.

Comparative tests of the proposed composition and commercial diesel fuel showed significant operational advantages of the composition (Table 6).

CLAIM

1. A HYDROCARBON FUEL COMPOSITION of a wide fractional composition containing gasoline and kerosene gas oil fractions, characterized by additionally containing organic nitrates or a mixture thereof, a copolymer of higher carboxylic acid esters with vinyl monomers, a metallopolymer of organic acids and polymethylsiloxane at the following component ratio, .

  • Nitrates of organic alcohols or their mixture 0,01 0,5
  • Copolymer 0.01 0.3
  • Metallopolymer 0.00005 0.1
  • Polymethylsiloxane 0.00005 0.1
  • Hydrocarbon fuel up to 100

2. A composition according to claim 1, characterized in that the hydrocarbon fuel comprises a stable gas condensate with a gasoline content of up to 90 wt.

3. A composition according to claim 1, characterized in that it contains nitrates of organic alcohols with a thermal decomposition temperature within the boiling point of 50 70% of hydrocarbon fuel fractions.

print version
Date of publication 09.04.2007гг