Reaction products of (a) polyalkenylsuccinic anhydride; (b) secondary, aromatic amines, and (c) hindered alcohols are used as effective antifoulants in liquid hydrocarbonaceous mediums, such as crude oils and gas oils, during processing of such liquids at elevated temperatures. The reaction products may be formed via a two-step reaction in which the polyalkenylsuccinic anhydride is reacted with the secondary, aromatic amine as a first step. The resulting polyalkenylsuccinimide may then be reacted with a hindered alcohol to form the desired antifoulant.
(a)聚烯基
丁二酸酐;(b)仲胺、芳香胺和(c)受阻醇的反应产物可用作液态烃类介质(如原油和气油)在高温下加工过程中的有效防污剂。反应产物可通过两步反应形成,其中第一步是聚烯基
琥珀酸酐与仲胺、芳香胺反应。然后,生成的聚烯基琥珀
酰亚胺可与受阻醇反应,形成所需的防污剂。