Aqueous emulsifier package with anionic surfactant for fuel emulsion
AssigneeBASF SE
InventorsJochen Wagner, Marcel Harhausen, Thorsten Schoeppe, Simon Steppan, Jens Meissner
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Abstract
A method for powering a diesel engine with a fuel emulsion involves preparing the fuel emulsion by emulsifying a fuel and water in the presence of an emulsifier package, which contains an anionic surfactant selected from sulfates and sulfonates. The emulsifier package for emulsifying a fuel and water and the fuel emulsion for powering a diesel engine are also provided.
Claims19
1-17. (canceled)
A method for powering a diesel engine with a fuel emulsion, the method comprising:
- preparing the fuel emulsion by emulsifying a fuel and water in the presence of an emulsifier package which comprises
- an anionic surfactant selected from the group consisting of sulfates and sulfonates, and
- a nonionic surfactant which is an alkoxylated alkanol of the formula (I)
- Re—O-(AO)mRf (1),
- in which
- Re is straight-chain or branched alkyl or alkylene with from 1 to 32 carbon atoms,
- AO is an ethylene oxide radical, propylene oxide radical, butylene oxide radical, pentylene oxide radical, styrene oxide radical or a mixture of the abovementioned radicals, in random or block sequence,
- m is a number from 1 to 100, and
- Rf is hydrogen or alkyl with from 1 to 4 carbon atoms,
- wherein the emulsifier package comprises a mixture of anionic surfactants comprising
- at least one sulfate selected from C6-22 alkyl sulfates, and
- at least one alkyl ether sulfate of the general formula R—O—(CH2CH2O)mSO3, in which R is a linear or branched alkyl and/or alkenyl radical having 6 to 22 carbon atoms, and m is a number from 1 to 10.
An emulsifier package for emulsifying a fuel and water, comprising:
- an anionic surfactant selected from the group consisting of sulfates and sulfonates, comprising
- at least one sulfate selected from C6-22 alkyl sulfates, and
- at least one alkyl ether sulfate of the general formula R—O—(CH2CH2O)mSO3,
- in which R is a linear or branched alkyl and/or alkenyl radical having 6 to 22 carbon atoms, and m is a number from 1 to 10, and
- wherein the sulfonate is selected from di-(C8-10) alkyl sulfosuccinates,
- at least two nonionic surfactants which are alkoxylates, wherein the alkoxylates are selected from alkoxylated alkanols of the formula (I),
- Re—O-(AO)m—Rf (I),
- in which
- Re is straight-chain or branched alkyl or alkylene with from 1 to 32 carbon atoms,
- AO is an ethylene oxide radical, propylene oxide radical, butylene oxide radical, pentylene oxide radical, styrene oxide radical, or a mixture of the abovementioned radicals, in random or block sequence,
- m is a number from 1 to 100, and
- Rf is hydrogen or alkyl with from 1 to 4 carbon atoms, and
- water.
An emulsifier package for emulsifying a fuel and water, comprising:
- a mixture of anionic surfactants, comprising at least one sulfate selected from C6-22 alkyl sulfates, and at least one alkyl ether sulfate of the general formula R—O—(CH2CH2O)mSO3, in which R is a linear or branched alkyl and/or alkenyl radical having 6 to 22 carbon atoms, and m is a number from 1 to 10,
- at least one nonionic surfactant which is an alkoxylated alkanol, and
- water.
Dependencies are inferred from the claim text.