PROCESS FOR REDUCING FOULING IN THE PROCESSING OF LIQUID HYDROCARBONS

摘要

The present invention relates to the use of a polyester which bears hydroxyl groups and is preparable by polycondensation of a polyol containing two primary OH groups and at least one secondary OH group with a dicarboxylic acid or anhydride thereof or ester thereof bearing an alkyl radical containing 16 to 400 carbon atoms or an alkenyl radical containing 16 to 400 carbon atoms as an antifoulant in the thermal treatment of liquid hydrocarbon media in the temperature range from 100 to 550°C.