文献类型：期刊文献

英文题名：Reduction of total acid number of crude oil and distillate

作者：Lu, R.[1]; Xu, X.[1,2]; Yang, J.[1]; Gao, J.[1]

机构：[1]E China Univ Sci & Technol, Res Inst Petr Proc, Shanghai 200237, Peoples R China

年份：2007

卷号：29

期号：1

起止页码：47

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20064610242214);WOS:【SCI-EXPANDED(收录号:WOS:000241854000005)】；

语种：英文

外文关键词：aqueous ammonia; crude oil; demulsifier; high total acid number; organic amines

摘要：Reduction of total acid number (TAN) of crude oil and distillate was investigated. Organic amines and aqueous ammonia were evaluated. Among organic amines, diethylamine and diethylenetriamine can effectively reduce the TAN. Superior alkalinity can improve acid removal while steric hindrance may weaken acid removal. The result showed that aqueous ammonia can acquire ideal results when the molecule ratio of ammonia to naphthenic acid reaches 3:1, the dosage of demulsifiers is 40 mg/l, the weight ratio of LA42 to LGA is 1:1 and electric strength reaches 1500 V/cm. The heat stability of the treated crude oil was tested.