Extraction of Bitumen from Tar Sands Using Supercritical Fluid
作者单位：Pacific Northwest National Laboratory Washington 99352 United States of America
会议名称：《7th World Congress on Recovery, Recycling and Re-integration》
会议日期：2005年
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术]
关 键 词：bitumen, recovery, supercritical fluid extraction
摘 要：Oil sand deposits in North America contain some 1.3 trillion barrels of bitumen, of which approximately 250 billion barrels are considered potentially recoverable using current technology. However recovery of the non-polar organic compounds in the bitumen requires water as the working solvent. Over 4 barrels of water are required to recover 1 barrel of bitumen. This paper shows how supercritical fluid extraction of the bitumen may greatly reduce water consumption, thereby extending the useful life of aquifers.