摘要:
An additive composition improves the stability and the engine performances of gas oils, including gas oils of the non-road type in compliance with the decree of 10 Dec. 2010. The additive composition includes: at least one metal deactivator or chelating agent, at least one antioxidant of the hindered phenol type (alkylphenol), at least one dispersant and/or detergent, and at least one metal passivator, wherein the composition includes improved properties, in particular relative to the oxidation resistance, storage stability, thermal stability, reduction in fouling of the injectors, reduction in loss of power, reduction in the tendency of filters to clog.
摘要:
An additive composition improves the stability and the engine performances of gas oils, including gas oils of the non-road type in compliance with the decree of 10 Dec. 2010, including: (a) at least one metal deactivator or chelating agent, (b) at least one antioxidant of the hindered phenol type (alkylphenol), (c) at least one dispersant and/or detergent, (d) at least one metal passivator, where the compositions include improved properties, in particular relative to the oxidation resistance, storage stability, thermal stability, reduction in fouling of the injectors, reduction in loss of power, reduction in the tendency of the filters to clog.
摘要:
An additive composition improves the stability and the engine performances of gas oils, including gas oils of the non-road type in compliance with the decree of 10 Dec. 2010, including: (a) at least one metal deactivator or chelating agent, (b) at least one antioxidant of the hindered phenol type (alkylphenol), (c) at least one dispersant and/or detergent, (d) at least one metal passivator, where the compositions include improved properties, in particular relative to the oxidation resistance, storage stability, thermal stability, reduction in fouling of the injectors, reduction in loss of power, reduction in the tendency of the filters to clog.
摘要:
Cetane improver for diesel fuels, characterized in that it comprises at least one ester of stearic acid, selected from the esters of linear or branched monoalcohols containing 1 to 6 carbon atoms: a) added in the pure state to a mixture of at least one vegetable or animal oil ester in crude or partially hydrogenated form b) or else included in a mixture of esters of one or more vegetable and/or animal oils, in crude or partially hydrogenated form, the mixtures of saturated or unsaturated esters being such that the ratio by mass of the amount of stearic ester(s) to the total sum of the amounts of unsaturated esters present in the vegetable or animal oil esters varies from 1% to 12%, and the unsaturated fatty acid esters being esters of mono or polyunsaturated acids containing at least 18 carbon atoms with monoalcohols.
摘要:
The subject of the disclosure concerns C8 or higher, linear or branched fatty chain (meth)acrylic polymers possibly containing at least one ethylene unsaturation, having a weight average molecular weight Mw of less than 20,000 g/mole, free of sulphur-containing, metallic and halogenated compounds and with a residual monomer content measured by GPC of no more than 10% by weight, preferably no more than 7% by weight. A further subject of the disclosure is the synthesis method and the uses of these polymers.
摘要:
The invention provides an emulsified fuel containing a major portion of hydrocarbon liquid and a minor portion of water, containing a set of additives including an emulsifying system comprising from 2.5 to 3.5 parts by weight of at least one sorbitol ester, from 1.5 to 2.5 parts by weight of at least one polyalkoxylated fatty acid ester and from 0.5 to 2.0 parts by weight of at least one polyalkoxylated compound selected from di- and tri-alkylated iso alcohols, the HLB of the emulsifying system varying from 6 to 8. Additive compositions are also provided.
摘要:
The disclosure relates to the use as an additive improving cold resistance and filterability of fuels, of at least one copolymer including: from 81 to 87 mol % of at least one α-olefin, preferably of at least ethylene, from 10.5 to less than 12% by moles of at least one vinyl ester, preferably of at least vinyl acetate, and 1 to 8% by moles of at least one α,β-unsaturated mono-carboxylic acid ester, preferably of at least ethyl-2-hexyl acrylate.
摘要:
The disclosure relates to the synthesis and the use of copolymers based on ethylene and/or of propylene and of vinyl ester(s) modified by grafting, effective for improving both the resistance to cold and the lubricity of liquid hydrocarbons in particular the middle distillates originating from the distillation of petroleum and crude oils, in particular those with a low sulphur content and relates to a copolymer including: a) units derived from ethylene of formula A —(CH2—CH2)n1— and/or propylene of formula A′ —((CH3)CH2—CH2)n2 with n1+n2=n ranging from 98 to 643, preferably ranging from 124 to 515; n1 being advantageously equal to n; b) units of formula B: —(CH2—CHOOCR1)m-x— in which R1 represents a C1-C15 linear or branched alkyl group preferably methyl, propyl, and/or a C5 to C15 branched alkyl group, in which the branching is situated at any point of the alkyl radical, preferably in position 2 or 3 of the alkyl chain; preferably chosen from the preferred C5-C15 vinyl comonomers, preferably chosen from the pivalate, isopentanoate, isohexanoate, isononanoate, isodecanoate and/or isotridecanoate, and advantageously 2-ethyl hexanoate, neoalkanoates, in particular neononanoate, neodecanoate and/or neoundecanoate; with m ranging from 2 to 105, preferably ranging from 16 to 71 and x ranging from 0.2 to 105, preferably ranging from 1.6 to 71; c) units of formula C: —(CH2—CHOH)x1— in which x1 ranges from 0 to 0.30x, preferably x1=0; d) units of formula D: —(CH2—CHOOCR2)x2— in which x2 ranges from 0.70x to x, preferably x2=x, and R2 represents a C8-C24 saturated or unsaturated, linear or branched, alkyl group, preferably C14-C20 or also C14 to C18 with x=x1+x2.
摘要:
The present disclosure includes liquid compositions that can be used for marking liquid hydrocarbon-based fuels and combustibles; these compositions include at least one marker, one or more solvents and, optionally, one or more functional additives other than the markers. The disclosure also includes a process for qualitative and quantitative detection of these markers present in a liquid hydrocarbon-based composition.
摘要:
The invention relates to the use, in a hydrocarbon distillate with a boiling temperature of between 150 and 450° C. and a crystallization onset temperature as measured by Differential Calorimetric Analysis of greater than or equal to −50° C., preferably of −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of carboxylic acid of 3 to 12 carbon atoms and from a fatty alcohol containing a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on copolymer and/or terpolymers of ethylene and of vinyl ester of a carboxylic acid of 3 to 12 carbon atoms, and of a monoalcohol containing 1 to 10 carbon atoms. The invention is also directed to an additive composition comprising a conventional hydrocarbon filterability additive in combination with an efficiency reveal additive, and also to the combustion fuels, motor fuel and oil fuel that comprise these additive combinations.