润滑科技信息平台

专利摘要

硝酸盐化合物和/或过氧化物化合物作为柴油燃料组合物中的添加剂以减少当燃烧所述柴油燃料组合物时沉积物在柴油发动机的后燃烧系统中的影响的用途。硝酸盐可以是硝酸烷基酯如硝酸2-乙基己酯或硝酸癸酯,过氧化物可以是二烷基过氧化物如二叔丁基过氧化物。 ......

基本信息

专利类型:
发明专利
申请/专利号:
GB2022013962
申请日期:
2022-09-23
专利申请人:
英诺斯派有限公司
分类号:
["C10L1/23","C10L1/18","C10L10/00","C10L10/04"]
发明/设计人:
PHILIP JOHN BOON
权利要求: Claims 1: A method of reducing the formation of deposits in one or more parts of the post combustion system of a diesel engine by at least 1%, the method comprising: - combusting in the engine a diesel fuel composition comprising as an additive a nitrate compound and/or a peroxide compound; and - weighing the one or more parts of the system before and after use; wherein combustion of the fuel comprising the post combustion deposit reducing additive provides a reduced level of deposits compared to when an otherwise identical fuel is combusted under identical conditions except for the inclusion of the post combustion deposit reducing additive. 2. A method according to claim 1 wherein the additive is selected from alkyl nitrates and/or dialkyl peroxides. 3. A method according to claim 1 or claim 2 wherein the additive comprises a nitrate compound of formula (I): oO LAN NY oO [0] wherein R' is an optionally substituted straight chain, branched or cyclic alkyl group. 4, A method according to any preceding claim wherein the additive comprises a nitrate compound of formula (I): oO Re NY oO 0) wherein R' is an optionally substituted alkyl, aryl or aralkyl group. Preferably 6 to 16 carbon atoms, more preferably 8 to 10 carbon atoms. 5. A method according to any preceding claim wherein the additive comprises a nitrate compound of formula (I): oO RG N Nt 0 ~N oc wherein R'is an unsubstituted alkyl group having 2 to 20 carbon atoms. 6. A method according to any preceding claim wherein the additive comprises a compound of formula (II): R2— Q— O——; R3 (In wherein R? is an optionally substituted alkyl, aryl, alkaryl, aralkyl or acyl group; and R3 is hydrogen or an optionally substituted alkyl, aryl, alkaryl, aralkyl or acyl group. 7: A method according to any preceding claim wherein the additive comprises a compound of formula (II): R2—0Q—0——R3 (I wherein R2 and R?® are the same and each is an unsubstituted alkyl! or acyl group having 1 to 12 carbon atoms. 8. A method according to any preceding claim wherein the additive is selected from 2- ethylhexyl nitrate, a decyl nitrate and di-tert-butyl peroxide. 9. A method according to claim 7 wherein R' is a branched decyl group having an average degree of branching of from 1 to 2.5. 10. A method according to any preceding claim wherein the diesel fuel composition comprises from 50 to 2000 ppm of alkyl nitrate and/or dialkyl peroxide compounds. 11. A method according to any preceding claim wherein the diesel fuel composition comprises from 50 to 350 ppm alkyl nitrate and/or dialkyl peroxide compounds. 12. A method according to any preceding claim wherein the diesel fuel composition comprises one or more nitrogen containing detergents. 13. A method according to claim 20 wherein the one or more nitrogen containing detergents are selected from: (i) a quaternary ammonium salt additive; (ii) the product of a Mannich reaction between an aldehyde, an amine and an optionally substituted phenol; and (iii) the reaction product of a carboxylic acid-derived acylating agent and an amine. 14. A method according to any preceding claim wherein the diesel engine is an off road engine, for example a marine, rail or stationary engine.