润滑科技信息平台

专利摘要

The invention relates to a fuel composition which comprises at least: a fuel from one or more sources selected from the group that comprises mineral, plant and synthetic sources; a compound (T1) selected among polyalkylene glycols, C1-C12 alkyl and polyalkylene glycol ethers, and the mixtures thereof; and a compound (T2) selected among the non-ionic emulsifiers. The invention also relates to an additive composition comprising at least: a compound (T1) selected among the C1-C6 alkyl and polyethylene glycol ethers comprising two to six units of ethylene glycol; a compound (T2) selected among the esters of one or more C1-C36 alkenyl carboxylic or alkyl carboxylic acids, and a polyol selected among sorbitan and isosorbide, taken alone or mixed together; and possibly a detergent additive. The invention further relates to a method for preventing, avoiding or delaying the formation of ice crystals or flakes in a tank of a vehicle provided with an internal combustion engine. ......

基本信息

专利类型:
发明专利
申请/专利号:
EP2017794021
申请日期:
2017-10-20
专利申请人:
道达尔行销服务公司
分类号:
C10L1/14
发明/设计人:
DEQUENNE, BERNARD ， DUBOIS, THOMAS
权利要求: 1. A fuel composition which comprises at least: - a fuel derived from one or more sources selected from the group consisting of mineral, animal, vegetable and synthetic sources, - from 5 to 1000 ppm of a compound (T1) selected from: polyalkylene glycols, C1-C12 alkyl ethers of polyalkylene glycol, and mixtures thereof, - from 5 to 500 ppm of a compound (T2) selected from polyol esters of saturated or unsaturated, linear or branched, cyclic or acyclic C1 to C36, preferably C4 to C30 monocarboxylic aliphatic hydrocarbons, it being possible for said esters to be taken alone or as a mixture, - from 1 to 1000 ppm of at least a detergent additive, wherein the (T1):(T2) weight ratio is from 10:1 to 1:10.2. The fuel composition as claimed in claim 1, wherein the fuel comprises at least 50% by weight of a diesel fuel, preferably at least 70% by weight, more preferentially at least 90% by weight, relative to the total weight of fuel, more preferentially still the fuel consists of diesel fuel.3. The fuel composition as claimed in either one of the preceding claims, wherein the fuel comprises at least 50 ppm of water, preferably at least 100 ppm, more preferentially still at least 150 ppm.4. The fuel composition as claimed in any one of the preceding claims, wherein the compound (T1) is selected from polyethylene glycols, C1-C12 alkyl ethers of polyethylene glycol, and mixtures thereof, preferably C1-C6 alkyl ethers of polyethylene glycol comprising two to six ethylene glycol units, preferably diethylene glycol methyl ether.5. The fuel composition as claimed in claim 1, wherein the compound (T2) is obtained by esterification between: - one or more C1 to C36, preferably C4 to C30 alkylcarboxylic or alkenylcarboxylic acids, optionally comprising one or more ethylenic bonds; and - a linear or branched, cyclic or acyclic C4-C20 polyol optionally comprising one or more heterocycles with 5 to 6 atoms, preferably one or two heterocycles with 4 to 5 carbon atoms and an oxygen atom.6. The fuel composition as claimed in claim 5, wherein the alkylcarboxylic and alkenylcarboxylic acids are selected from the group consisting of stearic, isostearic, linolenic, oleic, linoleic, behenic, arachidonic, ricinoleic, palmitic, myristic, lauric, capric acids, taken alone or as a mixture, and the polyol is selected from the group consisting of erythritol, xylitol, arabitol, ribitol, sorbitol, maltitol, isomaltitol, lactitol, volemitol, mannitol, pentaerythritol, 2-hydroxymethyl-1,3-propanediol, 1,1,1-tri(hydroxymethyl)ethane, trimethylolpropane, sorbitan, isosorbide, and carbohydrates such as saccharose, fructose, maltose and glucose.7. The fuel composition as claimed in claim 6, wherein the compound (T2) is selected from sorbitan esters and isosorbide esters, preferably from sorbitan monoesters, diesters and triesters and isosorbide monoesters and diesters, taken alone or as a mixture or from mixtures of sorbitan partial esters, preferably mixtures of sorbitan monooleate, dioleate and trioleate.8. The fuel composition as claimed in any one of claims 1 to 4, wherein the compound (T2) is selected from monoester(s) and diester(s) of polyglycerols having from 2 to 10 glycerol units per molecule, preferably from 2 to 5 glycerol units per molecule, and mixtures thereof.9. The fuel composition as claimed in any one of the preceding claims, wherein the detergent additive is selected from succinimides, polyetheramines and quaternary ammonium salts, more preferably polyisobutylene succinimides and polyisobutylenes functionalized by a quaternary ammonium group.10. The fuel composition as claimed in any one of the preceding claims, comprising: • from 50 to 500 ppm, more preferentially still from 100 to 300 ppm of additive (T1), • from 25 to 200 ppm, more preferentially still from 50 to 100 ppm of additive (T2).11. The fuel composition as claimed in any one of the preceding claims, wherein the (T1):(T2) weight ratio is from 10:1 to 1:1.12. A composition of fuel additives that is intended for a vehicle equipped with an internal combustion engine, this composition being able to be used to formulate a fuel composition as claimed in any one of claims 1 to 20 and which comprises at least: - a compound (T1) selected from C1-C6 alkyl ethers of polyethylene glycol comprising two to six ethylene glycol units, preferably diethylene glycol methyl ether, - a compound (T2) selected from esters of one or more C1 to C36, preferably C4 to C36 alkylcarboxylic or alkenylcarboxylic acids and of a polyol selected from sorbitan and isosorbide, taken alone or as a mixture, and optionally, - a detergent additive, preferably a detergent additive comprising a quaternary ammonium function, wherein the (T1):(T2) weight ratio is from 10:1 to 1:10.13. The composition of additives as claimed in claim 12 which comprises at least: - a compound (T1) which is diethylene glycol methyl ether, - a compound (T2) selected from sorbitan partial esters, taken alone or as a mixture, and optionally, - a detergent additive, preferably a detergent additive comprising a quaternary ammonium function.14. The use of a composition of additives in a fuel intended for a vehicle equipped with an internal combustion engine, to prevent, avoid or delay the formation of ice crystals or flakes in said fuel, wherein the composition of additives comprises: - at least one additive (T1) selected from: polyalkylene glycols and C1-C12 alkyl ethers of polyalkylene glycol, and - at least one compound (T2) selected from esters of polyols and aliphatic monocarboxylic hydrocarbons with C1 to C36, preferably with C4 to C30, saturated or unsaturated, linear or branched, cyclic or acyclic, said esters being able to be taken alone or in mixture, - a detergent additive, preferably a detergent additive comprising a quaternary ammonium function, where the amount of additive (T1) in the fuel is 5 to 1000 ppm, the amount of additive (T2) in the fuel is 5 to 500 ppm and the amount of detergent additive in the fuel is from 1 to 1000 ppm and the weight ratio (T1) : (T2) is from 10 : 1 to 1 : 10.15. The use as claimed in claim 14, wherein the fuel comprises at least 50 ppm of water, more preferentially still at least 100 ppm of water, better still at least 150 ppm of water.