文献类型：期刊文献

英文题名：Demulsification of extra heavy crude oil

作者：Xu, X. R.[1];Yang, J. Y.[1];Zhang, B. L.[1];Gao, J. S.[1]

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

年份：2007

卷号：25

期号：11-12

起止页码：1375

外文期刊名：PETROLEUM SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20074910965779);WOS:【SCI-EXPANDED(收录号:WOS:000252151300004)】；

语种：英文

外文关键词：assistant; demulsifier; dewatering; extra heavy crude oil; interface

摘要：The demulsification of orimulsion, an extra heavy crude oil, was studied by a PDY-1 instrument of electric demulsification. Some commercial demulsifiers, including P, RN, and RB series demulsifiers, were tested; however, their dewatering efficiency was unsatisfactory. ZQ series demulsifiers were synthesized and applied. It is pointed out that the ZQX3 series demulsifier had satisfactory dewatering ability for extra heavy crude oil emulsion. In order to improve the dewatering efficiency, toluene diisocyanate (TDI) was used as a chain extender to modify the ZQ series demulsifiers and an assistant-ammonium sulfate (t1)-was added. The results indicate that the dewatering efficiency of ZQ43 and a t1 mixture reaches excellent dewatering efficiency.