Properties,Compositions and Structure Characteristics of Kazakhstan and Russian Vacuum Residua  

作　　者：Liu Yuxin Liu Junhong Xu Zhiming Zhao Suoqi Xu Chunming 

机构地区：[1]State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beoing 102249, China） [2]Dushanzi Petroleum ＆ Chemical Company, PetroChina Limited, Dushanzi, Xinjiang 833600, China

出　　处：《Petroleum Science》2007年第4期100-106,共7页石油科学（英文版）

摘　　要：Kazakhstan vacuum residue （KAZVR） and Russia vacuum residue （RUSVR） were respectively cut into a number of narrow cuts and non-extractable end-cut by supercritical fluid extraction and fractionation （SFEF）. The properties distribution and SARA compositions of the fractions were analyzed, structure parameters and structure configurations were determined by means of the modified BL method based on 13C-NMR and 1H-NMR data. The results show uneven enriching of contaminants in heavier fractions and much complex structure for end-cuts and removing end-cuts from residua will greatly favor further upgrading. The results would help detailed understanding of KAZVR and RUSVR and their processing adaptability.Kazakhstan vacuum residue （KAZVR） and Russia vacuum residue （RUSVR） were respectively cut into a number of narrow cuts and non-extractable end-cut by supercritical fluid extraction and fractionation （SFEF）. The properties distribution and SARA compositions of the fractions were analyzed, structure parameters and structure configurations were determined by means of the modified BL method based on 13C-NMR and 1H-NMR data. The results show uneven enriching of contaminants in heavier fractions and much complex structure for end-cuts and removing end-cuts from residua will greatly favor further upgrading. The results would help detailed understanding of KAZVR and RUSVR and their processing adaptability.

关 键 词：Supercritical fluid extraction FRACTIONATION PROPERTIES COMPOSITION structure 

分 类 号：TE3[石油与天然气工程—油气田开发工程]