HU227853B1 - Chemical additive - Google Patents

Abstract

Procedure for treating hydrocarbon-based motor fuel, preferably gas oil, to reduce harmful emissions, comprises adding an additive composition comprising semi-ether of ethylene- and/or butylene-glycol made with 3-6C alcohol (170-240 ppm); 10-20C organic acid, preferably unsaturated acid (5-40 ppm); and 5-10C alcohol, preferably branched alcohol (5-40 ppm) to the fuel.

Description

SERVICE VERSION

CHEMICAL ADDITIVE ♦ * ** **

The present invention relates to an internal combustion engine additive. More particularly, the present invention relates to an additive suitable for use with a hydrocarbon based motor fuel. More particularly, the present invention relates to an additive for a hydrocarbon based propellant, which reduces the emission of pollutants and thus the consumption.

As motorization progresses, more and more attempts have been made to reduce harmful emissions from the combustion of hydrocarbon-based motor fuels and, where possible, to reduce specific fuel consumption. As is known in the art, the use of aromatic halogen compounds (British Patent Publication No. BG 2 172 302) and halogenated hydrocarbons (GB 2 115 004) and chlorinated hydrocarbons (HU 206 133, Hungarian Patent Specification) to drive motor propellants. changes in specifications no longer allow the use of halogenated additives.

Additions of ammonium pentylbenzene sulphobal and a mixture of mono- and polyhydric alcohols have also been attempted (Hungarian Patent No. 188,114,114).

Attempts have been made to add water / ethylene glycol monoborlether as a mixture (WO 03/31794) by which a. discharge of nhogen oxides slightly decreased, but the presence of water resulted in unfavorable side effects.

Our research aimed to develop a process that will reduce emissions of CO, sulfur, NO and SO, while reducing the specific half-life of the fuel.

* X

As a result of our research, we have found a combination of a special organic ether, organic acid and organic alcohol which is a. has found him better suited to the task at hand than ever known.

The present invention therefore relates to a process for the addition of a hydrocarbon-based propulsion nut, preferably gas oil, to reduce harmful emissions, wherein the fuel has a half ether of C2-C6 alcohol of ethylene and / or propylene glycol of from 170 to 240 ppm by weight. 40 ppm of a C10-C20 organic acid, preferably an unsaturated acid, of 5 to 40 ppm of valaxine. C 5 -C 10 alcohols, particularly branched-chain alcohols, are added.

A. In a preferred embodiment of the process of the invention, the fuel has 170-240 ppm ethylene glycol half-ether with C2-C4 alcohol, 5-40 ppm organic acid containing 15-2 (} carbon atoms, one or two double bonds, and 5-40 ppm 5). -C10 carbon.

branched-chain alcohol is added.

In an even more preferred embodiment of the process of the invention, the fuel is 200-220 ppm ethylene glycol. Half of its C2-C4 alcohol, 5 to 15 ppm of C1 to C20 organic acid with one or two double bonds, and 5 to 15 ppm of C5 to C10 branched alcohol;

The present invention also relates to a fuel component for the addition of a hydrocarbon-based motor propellant, preferably a diesel oil, which is in the range of 7 to 96% by weight of ethylene and / or butylglycol with 3 carbon atoms, 2 to 15% by weight of 10 to 20 carbon atoms. : ♦ 'fifi «®« * _χΛ . * * * <* * * * * ♦ contains an acid, preferably an unsaturated acid, and 2-15% by weight of a C 5-10 alcohol, a highly branched alcohol and optionally 5-15% by volume of gas oil.

Preferably, the additive composition of the present invention is a loft of 70-96% ethylene glycol with a C3-C4 alcohol with 5-10% C15-20 organic acid having one or two double bonds and 5-10% C5-C10 branched chain alcohol and optionally containing 5 to 15% by weight of diesel oil,

Advantageously, the process of the invention is carried out by administering the additive composition of the invention.

The process of the present invention and the additive composition and effects are illustrated by way of exemplary embodiments.

'4 44 49 9 9 * ♦ 4

W

1. ρ, .da

Measurements were made on a 12P.A4-1-85VG PffiLSTÍECK engine at 1400 rpm. To the diesel fuel was added 210 ppm of ethyl ether glycol with propyl alcohol, 10 ppm of stearic acid and 10 ppm of 2-ethyl esters. Compared to the emission values measured in the additive-free mode, the emissions in the additive mode contained 23% less nitrogen oxides, 35% less carbon monoxide and 22.5% less hydrocarbons, while reducing fuel consumption by 2.9%.

.2. 'Example

A. Preparation of the additive composition of the invention. 10 kg of gas oil were mixed with 100 kg of benzyl alcohol and ethylene glycol and then 2.2 kg of oleic acid and 5 kg of ethylexanol were added.

Example 3

The measurement was performed at 1.3 S typ. It was done on an Opel Cadet engine at 2700 rpm using -95 octane gasoline. 260 ppm of the additive from Example 2 was added to the fuel, with A measured by 4.8% for emissions of 1g, S% *, 32.6% for carbon monoxtd and hydrocarbons decreased by 19.8% in exhaust gas.

«« «« «***« ·

Example 4

By repeating the measurement in Example 1 by adding 200 ppm to the diesel fuel additive in Example 2, the additive mode gives 26% less nitrogen oxides, 33% less carbon monoxide, and less than the emission values measured in the unblocked mode. S, 5%! contained less hydrocarbons while reducing fuel consumption by 3.2%,

Experimental experience has shown that the use of the additive according to the invention can significantly reduce the harmful emissions of both diesel and gasoline engines while reducing fuel consumption.

Claims (5)

Patent claims: CLAIMS 1. A process for adding hydrocarbon-based propellant, preferably to diesel, to reduce harmful emissions, characterized in that the fuel comprises: 170-240 ppm ethylene., And / or butylene glycol, halogenated with C 3-6 alcohol, 5-40 ppm C 10-20 organic an acid, preferably an idylenic acid, and an alcohol containing from 5 to 40 ppm of a C 5 -C 40 alcohol, preferably a branched chain alcohol. 2. A process according to claim I wherein the fuel comprises 170-240 ppm of ethylene glycol with a C3-C4 alcohol, 5-40 ppm of a C20-C20 organic acid having one or two double bonds and 5-40 ppm of an organic acid. ppm C 5 -C 10 branched alcohol is added. 3. The process of claim 1 wherein the fuel comprises 200-220 ppm of ethylene glycol in a C3-C4 alcohol, 5-15 ppm of C15-20 organic acid containing one or two double bonds, and 5-15 ppm Alcohol containing 5-10 carbon atoms is added * 4. Additive composition for the addition of a hydrocarbon-based motor propellant, preferably gas oil, characterized in that the additive composition comprises 70-96% by weight of ethyl ether and / or benzene glycol with a C 3-6 alcohol, 2-15% by weight of C 10-20 organic acid, preferably unsaturated acid. It contains from 2 to 15% by weight of an alcohol having 5 to 10 carbon atoms, preferably an alcohol having a branched chain and optionally 5 to 15% by volume of gas oil. s «« $, φ «φ * φφ» φφ »» * '«φ φ φ * »*« Additive composition according to Claims 5 to 4, characterized in that it contains 70-96% by weight of ethyl ether / glycol with a halogen of 3 to 4 carbon atoms, 5-10% by weight of organic acids of 15 to 20 carbon atoms containing one or two suitable bonds, and It contains from 5% to 5% C 5 -C 10 branched alcohol and optionally 5 to 151% gas oil.