Water-Assisted Solvent Extraction of Bitumen from Oil Sands

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	Water-Assisted Solvent Extraction of Bitumen from Oil Sands
	Yang HQ(杨红强)1,2; Wang YH(王艳红)1,2; Ding MS(丁明山)1,2 ; Hu B(胡斌)1 ; Ren SL(任嗣利)1
刊名	Industrial & Engineering Chemistry Research
	2012
卷号	51 期号:7 页码:3032-3038
ISSN号	0888-5885
通讯作者	任嗣利
英文摘要	Water-assisted solvent extraction processes (WASEPs) were developed by introducing a water layer between the oil sands and solvent to extract bitumen from oil sands. The extraction condition was well investigated using the naphtha as the extraction solvent. Considering the extraction cost, the advised extraction processes for industrial application were conducted under stirring at temperature of 50–60 °C for 30 min using a ratio of oil sands to naphtha to water in 1:1:0.5 (wt/wt/wt). At such conditions, bitumen recovery of about 72–74% was obtained on processing a weathered ore. In the case of some types of oil sands such as the weathered ore, surfactant needs to be added in the aqueous phase to eliminate the solids aggregation suspended in the oil–water interface. The function of the water layer introduced in the WASEPs is to reduce the fines content in the extracted bitumen solution and make it easy to separate the bitumen solution from the solids. In the examination of the solvent recovery, it was found that there was 7% of the solvent still remaining in the solids. The loss of the solvent greatly depends upon the surface wettability of the solids. Studies on the effect of various solvents on bitumen recovery indicated that using toluene as the extraction solvent gave the highest bitumen recovery of about 95%. However, considering the extraction cost and environmental problems, the water-assisted naphtha extraction processes were advised and might find its application in the oil sands processing industry, although some issues need to be resolved in the future work.
学科主题	物理化学与绿色催化
收录类别	SCI
资助信息	the National Natural Science Foundation of China (Grant No. 50904060);the “Top Hundred Talents Program” held by the Chinese Academy of Science (CAS)
语种	英语
WOS记录号	WOS:000300644300024
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/3888]
专题	兰州化学物理研究所_OSSO国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Yang HQ,Wang YH,Ding MS,et al. Water-Assisted Solvent Extraction of Bitumen from Oil Sands[J]. Industrial & Engineering Chemistry Research,2012,51(7):3032-3038.
APA	Yang HQ,Wang YH,Ding MS,Hu B,&Ren SL.(2012).Water-Assisted Solvent Extraction of Bitumen from Oil Sands.Industrial & Engineering Chemistry Research,51(7),3032-3038.
MLA	Yang HQ,et al."Water-Assisted Solvent Extraction of Bitumen from Oil Sands".Industrial & Engineering Chemistry Research 51.7(2012):3032-3038.