Process for the prevention or reduction of deposits in carbureto

Details Process for the prevention or reduction of deposits in carbureto Process for the prevention or reduction of deposits in carbureto

1988-04-05

1991-06-18

Willis, Prince E.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

44347, 44387, 44400, 44417, 44418, 44423, 44435, 44448, 44451, 44452, C10L 118, C10L 122

Patent

active

050246780

ABSTRACT:
Process for the prevention of reduction of deposits in carburetors, injection devices or similar devices of engines, which are operated with alcohol fuels comprising 99.9 to 75 Vol.-% methanol, ethanol or a mixture thereof and at least one corrosion inhibitor characterized in that one or several polyol ethers are added to the alcohol fuels in a quantity of 15 ppm up to 1 weight-%, whereby the polyol ether(s) has (have) the general formula ##STR1## wherein R is H, linear or branched C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkenyl, polyunsaturated C.sub.1 -C.sub.20 - alkyl, C.sub.1 -C.sub.20 - cycloalkyl, mono- or bicyclo-C.sub.6 -C.sub.14 -aryl, unsubstituted or substituted, R.sub.1 is H, C.sub.1 -C.sub.8 -alkyl, unsubstituted or substituted aryl, R.sub.2 is H, C.sub.1 -C.sub.8 -alkyl, unsubstituted or substituted aryl, and R.sub.3 is OR.sub.5, SR.sub.5, N(R.sub.5).sub.2, wherein R.sub.5 is H, linear or branched C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -cycloalkyl, mono- and bicyclo-C.sub.6 -C.sub.14 -aryl, unsubstituted or substituted or other specified acid ester or amide substituents and m of the polyolether molecule is 2 or 3 or 4 or combinations of these numbers and n is 2-200.

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