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题名: Catalytic reduction of SO2 with CO over supported iron catalysts
作者: Wang, XH;  Wang, AQ;  Li, N;  Wang, XD;  Liu, Z;  Zhang, T
通讯作者: 张涛
刊名: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
发表日期: 2006-06-21
DOI: 10.1021/ie0600947
卷: 45, 期:13, 页:4582-4588
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Iron oxides supported on several types of carriers (gamma-Al2O3, HZSM-5, SiO2, and MgO) were investigated for the catalytic reduction of SO2 by CO. The catalytic tests show that the activity of the catalysts followed the order Fe2O3/gamma-Al2O3 > Fe2O3 > HZSM-5 >> Fe2O3/SiO2 > Fe2O3/MgO. The X-ray diffraction analysis characterization of the presulfided catalysts revealed that FeS2 formation was greatly dependent on the acidic nature of the supports, with an evident FeS2 phase detected on both gamma-Al2O3 and HZSM-5, in contrast with Fe7S8 formed on SiO2 and MgO. Presulfidation with a reacting gas mixture above 500 degrees C was necessary for obtaining a high activity because of the formation of active-phase FeS2 during this process. The catalytic activity correlated well with the sulfidation degree of Fe2O3, which is mainly dependent on the acidic nature of the support and the choice of the presulfidation conditions. When the Fe content was at 20 wt %, under the optimal feed compositions (CO/SO2 = 2: 1), the Fe2O3/gamma-Al2O3 catalyst exhibited the best catalytic performance, with 99.31% SO2 conversion and a 99.17% sulfur yield obtained at 380 degrees C.
关键词[WOS]: SULFUR-DIOXIDE REDUCTION ;  FLUE-GAS DESULFURIZATION ;  ELEMENTAL SULFUR ;  CARBON-MONOXIDE ;  SULFIDED LA1-XSRXCOO3 ;  LANTHANUM ;  CHEMISTRY ;  ALUMINA ;  OXIDE ;  REMOVAL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000238258500017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97455
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, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

Recommended Citation:
Wang, XH,Wang, AQ,Li, N,et al. Catalytic reduction of SO2 with CO over supported iron catalysts[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2006,45(13):4582-4588.
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