| 摘要 |
1. A method for reducing pollutant emission of mineral oil fuels in internal combustion engines, the method comprising the step of: a) forming a fuel additive comprising an aqueous solution of glyoxal and emulsifiers and/or tensids and/or antifreeze agents; adding the aqueous solution of glyoxal to a hydrocarbon fuel or b) forming a fuel additive comprising an acetal and/or hemiacetal of glyoxal, the glyoxal being bound by acetalization with alcohols and/or diols and/or triols in an aqueous phase; separating the resulting product from its aqueous phase and thereafter adding the product to a hydrocarbon fuel wherein the ratio of the fuel additive to fuel is between 1:1.000 and 1:20.000 said fuel being supplied to the internal combustion engine. 2. The method of claim 1, wherein the emulsifiers are esterified aliphats and/or polyethyleneglycol and/or tensids and the antifreeze agents are methanol, glycerol, glycol. 3. The method of claim 2, wherein the ratio of glyoxal solution, esterified aliphats and/or polyethyieneglycol is 2:1:1 in the fuel additive. 4. The method of claim 3, further comprising the steps of: first mixing part of the fuel with the glyoxal-emulsifier-mixture; and thereafter adding methyl-tertiar-butylether in a ratio of 1:50 to 1:100. 5. The method of claim 1, wherein the acetalization of the glyoxal is achieved by reacting the glyoxal with a second reactant selected from the group consisting of linear and branched alcohols from C1 - C16 and/or linear and/or branched diols and/or triols from C1 - C16, the acetalization agent being especially selected from the group consisting of methanol, ethanol, isopropanol, tertier butanol, 1,3-propandiol, neopentylglycol and glycerol. 6. A hydrocarbon fuel for internal combustion devices in vehicles and fuel fired heating plants, the fuel comprising a) a fuel additive comprising an aqueous solution of glyoxal and emulsifiers and/or tensids and/or antifreeze agents and/or b) an acetal of glyoxal and/or hemiacetal of glyoxal wherein the ratio of the fuel additive to fuel is between 1: 1.000 and 1: 20.000. 7. The fuel according to claim 6, wherein the emulsifiers are esterified aliphats and/or polyethylengiycol and/or tensids and the antifreeze agents are methanol, glycerol and glycol. 8. The fuel according to claim 7, wherein the ration of glyoxal solution, esterified aliphats and/or polyethylenglycol is essentially 2:1:1. 10. The fuel according to one of claims 7 to 9, wherein said acetals and/or semiacetals comprising C1-C16-alkoxy groups, said acetals and/or hemiacetals preferential are obtained by acetalization of glyoxal with linear and/or branched mono-, di- and triaicohols having C1-C16 carbons, said mono-, di- and trialcohols preferential are selected from the group consisting of methanol, ethanol, isopropanol, tertier butanol, 1,3-propandiol, neopentylglycol and glycerol.
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