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题名: COS hydrolysis in the presence of oxygen: Experiment and modeling
作者: Wang, Li1;  Wang, Shudong2;  Yuan, Quan2;  Lu, Guanzhong1
关键词: COS ;  hydrolysis ;  deactivation ;  kinetic modeling ;  oxygen
刊名: JOURNAL OF NATURAL GAS CHEMISTRY
发表日期: 2008-03-01
卷: 17, 期:1, 页:93-97
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: A mathematical model of COS hydrolysis on Al(2)O(3), with fouling of catalyst, has been developed. Kinetic studies were carried out in a fixed bed reactor under atmospheric pressure and low temperature (40-70 degrees C). The effects of the COS inlet concentration, temperature, and relative humidity were analyzed. Experimental results of breakthrough curves were used to obtain kinetic parameters, which accounted for effects of S deposition on the inner-face of the catalyst. The model described the experimental breakthrough curves satisfactorily and well explained the performance of COS hydrolysis in the presence of oxygen. The exothermic heat of adsorption and activation energy, assuming Arrhenius type of temperature dependence of the equilibrium constant, were determined. Activation energy of COS hydrolysis and H(2)S oxidation were 35.9 kJ/mol, 19.6 kJ/mol; adsorption heat of H(2)O and H(2)S on Al(2)O(3) were 45.1 and 60.1 kJ/mol respectively. Deactivation coefficient (02) was used to quantify the behavior of COS hydrolysis at different operating conditions. The effect of relative humidity on alpha is significant in the relative humidity range under study. Experimental data accorded well with model data in the studied range.
关键词[WOS]: HYDROGEN-SULFIDE ;  CATALYTIC-OXIDATION ;  ACTIVATED CARBON ;  LOW-TEMPERATURE ;  H2S ;  SULFUR ;  REMOVAL ;  OXIDE ;  GAS
语种: 英语
WOS记录号: WOS:000255491700015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141110
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, Liaoning, Peoples R China

Recommended Citation:
Wang, Li,Wang, Shudong,Yuan, Quan,et al. COS hydrolysis in the presence of oxygen: Experiment and modeling[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2008,17(1):93-97.
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