Abstract:
This invention provides a composition and a method of using a composition containing an imidazoline, optionally containing a paraffin inhibitor, for improving the pour point of liquid hydrocarbons, such as crude oil and petroleum fuel, and/or inhibiting or reducing the formation of paraffin deposits in such liquids.
Abstract:
Polyisobuteneamines of the general formula R1—CH2—NR2R3 in which R1 is a polyisobutyl radical which is derived from isobutene and up to 20% by weight of n-butene and has a number-average molecular weight Mn of from 600 to 770, and R2 and R3 are each independently hydrogen, a C1-C18-alkyl, C2-C18-alkenyl, C4-C18-cycloalkyl, C1-C18-alkylaryl, hydroxy-C1-C18-alkyl, poly(oxyalkyl), polyalkylenepolyamine or polyalkyleneimine radical or, together with the nitrogen atom to which they are bonded, are a heterocyclic ring are suitable as detergents in gasoline fuels, reduce valve sticking and improve the compatibility of the detergents with carrier oils and compatibility in fuel compositions which comprise a mineral fuel content and C1-C4-alkanols.
Abstract:
Diesel or lean-burn engines which are fitted with an exhaust system provided with a particle filter are supplied with a fuel containing an additive capable of lowering the temperature at which the soot particles trapped by the particle filter can be burned and which essentially consists of an iron compound or essentially consists of an iron compound and of a cerium compound, and wherein the particle filter through which the exhaust gases produced by the combustion of the fuel in the engine pass is a catalytic filter in which the catalyst assists with the combustion of the soot particles; this improves soot combustion dynamics, particularly at low temperatures.
Abstract:
The invention provides fuel oils comprising a major proportion of a mixture of A) a middle distillate fuel oil and B) a biofuel oil, and also a minor proportion C) of an oil-soluble, crosslinked block copolymer composed of C2- to C4-alkylene oxides.
Abstract:
A fuel composition and methods for using it for controlling deposit formation in a spark-ignition internal combustion engine, such as a direct injection engine, comprising a spark-ignition fuel, a detergent, and a deposit inhibitor compound.
Abstract:
A method of preparing an FT derived diesel composition wherein the FT derived diesel composition has a good response to CFPP improving additives, which good response is achieved by addition of one or more of a FT recycle stream, a crude-oil derived diesel fuel, and a HGO (Heavy Gas Oil) to an FT derived diesel thereby to improve the CFPP improving additive response thereof.
Abstract:
An additive composition for a fuel comprises: (i) a metal compound selected from an iron compound, a manganese compound, a calcium compound, a cerium compound and mixtures thereof; (ii) an organic compound selected from a bicyclic monoterpene, substituted bicyclic monoterpene, adamantane, propylene carbonate and mixtures thereof; and (iii) a stabiliser. The additive composition allows fuels which are prone to separation, for example blended fuels or fuels having a high content of asphaltenes, to be used successfully.
Abstract:
A fuel, fuel additive concentrate, and method for removing and/or preventing the occurrence of deposits in a fuel injector of an injection engine are provided. The additive concentrate contains at least one hexahydro triazine.
Abstract:
A lubricant composition is disclosed that comprises lubricating oil and a mixture of at least two antioxidants, the first antioxidant being a secondary diarylamine and the second antioxidant being a substituted para-phenylenediamine. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least two antioxidants, the first antioxidant being a secondary diarylamine and the second antioxidant being a substituted para-phenylenediamine.
Abstract:
The present invention relates to methods of improving the low temperature storage and performance properties of fatty acids and/or derivatives thereof, as well as compositions containing fatty acids and/or derivatives thereof having superior lower temperature storage and performance properties.