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学科主题: 物理化学
题名: Temperature-Programmed Surface Reaction Study of Adsorption and Reaction of H2S on Ceria
作者: Liu Bing1, 2, 3;  Xu Hengyong1;  Zhang Zehui2, 3
通讯作者: 徐恒泳 ;  ZehuiZhang
关键词: ceria ;  hydrogen sulfide ;  adsorption ;  temperature-programmed surface reaction
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2012-10-01
DOI: 10.1016/S1872-2067(11)60416-6
卷: 33, 期:10, 页:1631-1635
收录类别: SCI
文章类型: Article
部门归属: DNL19
项目归属: DNL1902
产权排名: 2,1
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: H2S adsorption and reaction on CeO2, TiO2, and gamma-Al2O3 were studied by temperature programmed surface reaction (TPSR). Ceria had the best desulfidation ability. The pretreatment atmosphere affected H2S adsorption and reaction on ceria, and desulfidation efficiency increased in the order of inert atmosphere, reducing atmosphere, oxidizing atmosphere. H2S was first adsorbed on pretreated ceria at room temperature. On increasing the temperature in an Ar (99.99%) atmosphere, part of the H2S desorbed below 673 K, and another part reacted with the surface oxygen on ceria to produce sulfur and water below 473 K, and SO2 between 473 and 673 K, which further reacted with lattice oxygen and was transformed into sulfate above 673 K. The sulfate decomposed into SO2 again at 873 K. To avoid the complex regeneration, it is advisable to carry out desulfidation below 673 K when using ceria as adsorbent.
关键词[WOS]: GAS-SHIFT REACTION ;  HYDROGEN-SULFIDE ;  SYNGAS ;  CATALYSTS ;  SORBENTS ;  REMOVAL
语种: 英语
WOS记录号: WOS:000310037500003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117901
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, Liaoning, Peoples R China
2.S Cent Univ Nationalities, Coll Chem & Mat Sci, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Wuhan 430074, Hubei, Peoples R China
3.S Cent Univ Nationalities, Coll Chem & Mat Sci, Minist Educ, Wuhan 430074, Hubei, Peoples R China

Recommended Citation:
Liu Bing,Xu Hengyong,Zhang Zehui. Temperature-Programmed Surface Reaction Study of Adsorption and Reaction of H2S on Ceria[J]. CHINESE JOURNAL OF CATALYSIS,2012,33(10):1631-1635.
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