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题名: Removal of carbonyl sulfide at low temperature: Experiment and modeling
作者: Wang Li1;  Wang Shudong2;  Yuan Quan2
关键词: COS ;  simultaneous removal ;  kinetic modeling ;  deactivation
刊名: FUEL PROCESSING TECHNOLOGY
发表日期: 2010-07-01
DOI: 10.1016/j.fuproc.2010.02.013
卷: 91, 期:7, 页:777-782
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: A mathematic model of carbonyl sulfide (COS) removal at low temperature with fouling of catalyst has been developed based on experimental results. Kinetic studies were conducted in a fixed bed reactor under atmospheric pressure and at low temperature (40-70 degrees C). Experimental results of breakthrough curves were used to obtain kinetic parameters accounting for axial dispersion, external and internal mass-transfer resistances as well as the sulphur deposition on inner-face of catalyst. Initial bulk porosity of particle (epsilon(P0)), deactivation coefficient (alpha), sulfide deposition coefficient (beta) were used to quantify the behavior of COS removal at different operating conditions. Adsorption heat of H(2)O and activation energy of COS removal was 21.5 and 62.4 kJ/mol respectively. The effects of flow rate, COS inlet concentration, temperature and relative humidity(RH) were analyzed, and it was found that relative humidity carried a heavier weight than temperature on epsilon(P0), alpha, beta within our experimental conditions. The model agreed well with the experimental breakthrough curves and satisfactorily predicted the fixed-bed reactor performance, and this model can be used as a reliable tool for process design and scaling-up of similar system. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: ACTIVATED CARBON ;  HYDROGEN-SULFIDE ;  CATALYTIC-OXIDATION ;  ALUMINA CATALYSTS ;  COS HYDROLYSIS ;  H2S ;  DISULFIDE ;  SULFUR ;  GAS
语种: 英语
WOS记录号: WOS:000278650900011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142005
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.E China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wang Li,Wang Shudong,Yuan Quan. Removal of carbonyl sulfide at low temperature: Experiment and modeling[J]. FUEL PROCESSING TECHNOLOGY,2010,91(7):777-782.
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