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题名: Study on highly hydrophilic cellulose hollow fiber membrane contactors for thiol sulfur removal
作者: Yang, Xing;  Cao, Yi-Ming;  Wang, Rong;  Yuan, Quan
通讯作者: 曹义鸣
关键词: cellulose membrane ;  hollow fiber membrane contactor ;  thiol sulfur removal ;  reactive extraction ;  mass transfer
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2007-11-15
DOI: 10.1016/j.memsei.2007.08.020
卷: 305, 期:1-2, 页:247-256
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 905
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Dispersion-free reactive extraction of thiol compounds from high-sulfur-contained naphtha products into alkali solutions has been studied in a cellulose microporous hollow fiber membrane contactor. A steady extraction was achieved under a long-term operation of I month. The constant partition coefficient of thiol in an infinite dilution between the alkali solution and the oil phase was over 940. In addition, the effects of the tube and shelf side hydrodynamics on the mass transfer were investigated. The results indicated that the mass transfer resistance in the oil phase boundary layer contributed to more than 95% of the overall mass transfer resistance, while the membrane resistance only accounted for 2% under the operating conditions. The mass transfer flux of thiol extracted from the real naphtha stream containing 883.4 mu g g(-1) of sulfur came to 2.40 x 10(-5) kg M-2 S-1, and the mass transfer coefficient reached 3.91 x 10(-5) in s(-1). The removal efficiency was up to 99% with octane loss less than 3 mg L-1 when the liquid-liquid volume ratio was 1: 1. Furthermore, it was also found that the oil phase flowing at the shell was favorable in fast extraction. A diagram predicting the performance of the contactor for the extraction of sulfur from real naphtha streams was established and the prediction showed a good agreement with the experimental data. (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: MICROPOROUS HYDROPHOBIC MEMBRANE ;  SOLVENT-EXTRACTION ;  IMMOBILIZED INTERFACES ;  BACK-EXTRACTION ;  LACTIC-ACID ;  FERMENTATION ;  WATER ;  SYSTEMS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000250890600027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99141
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Nanyang Technol Univ, Innovat Ctr, Inst Environm Sci & Engn, Singapore 637723, Singapore

Recommended Citation:
Yang, Xing,Cao, Yi-Ming,Wang, Rong,et al. Study on highly hydrophilic cellulose hollow fiber membrane contactors for thiol sulfur removal[J]. JOURNAL OF MEMBRANE SCIENCE,2007,305(1-2):247-256.
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