聚合物型原油降凝剂的结晶性能研究  

STUDY ON THE CRYSTALLIZATION PROPERTY OF POLYMERIC POUR POINT DEPRESSANT FOR CRUDE OIL

作　　者：张红[1] 肖稳发[2] 

机构地区：[1]华东理工大学石油加工研究所,上海200237 [2]上海工程技术大学化学工程与工艺系

出　　处：《石油炼制与化工》2007年第11期33-36,共4页Petroleum Processing and Petrochemicals

基　　金：上海市重点学科建设项目(p1402)资助

摘　　要：采用红外光谱仪、核磁共振波谱仪对聚合物的合成特征基团进行了表征,并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。研究结果表明,原油中蜡晶的结晶状态与聚合物的结晶性能密切相关,结晶度不同,蜡晶分散效果不同,对原油的降凝性能也不同。当两者结晶性能状态匹配时蜡晶分散效果较好,降凝、降粘性能最佳,并通过考察原油体系热性能和低温流动性能进行了证实。The characteristic groups of polymeric pour point depressant（PPD）were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD. The results showed that the formation of wax crystal in crude oil was closely related with the crystallization property of PPD, the dispersion of wax crystals was varied with the various crystallinities of PPD, thus the pour point reduction of crude oil was altered with PPD. When the crystallization properties of wax and PPD were well coordinated, the dispersion of wax crystals in crude oil was uniform and the reduction of system pour point and viscosity were significant. Investigation on the thermal behavior and cold-flow property of crude oil containing PPD validated the above conclusion.

关 键 词：原油 降凝剂 结晶 聚合物 

分 类 号：TE869[石油与天然气工程—油气储运工程]