USE OF ALKYL PHENOL COMPOUNDS AS DETERGENT ADDITIVES FOR PETROLS
The present invention relates to the use, for improving the detergency properties of a liquid fuel composition chosen from petrols comprising one or more detergent additives, of an additive consisting of one or more nitrogen-free compound(s) having an alkyl-phenol structure chosen from methyl-t-buty...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present invention relates to the use, for improving the detergency properties of a liquid fuel composition chosen from petrols comprising one or more detergent additives, of an additive consisting of one or more nitrogen-free compound(s) having an alkyl-phenol structure chosen from methyl-t-butyl phenols, dimethyl-t-butyl phenols, ethyl-t-butyl phenols, t-butyl phenols, di-t-butyl phenols, tri-t-butyl phenols, di-t-butyl-di-methyl phenols, and mixtures thereof. The present invention also relates to a method for improving the cleanliness of and/or for cleaning at least one inner portion of a spark-ignition internal combustion engine supplied with a liquid fuel chosen from petrols and comprising one or more detergent additives, the method consisting of adding to the fuel composition at least one such compound having an alkyl-phenol structure. |
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