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学科主题: 物理化学
题名: SiC foam monolith catalyst for pressurized adiabatic methane reforming
作者: Li, Chunlin1;  Xu, Hengyong1;  Hou, Shoufu1;  Sun, Jian1, 2;  Meng, Fanqiong1;  Ma, Junguo1;  Tsubaki, Noritatsu2, 3
通讯作者: 李春林 ;  徐恒泳
关键词: SiC foam ;  Methane reforming ;  Monolithic catalyst ;  Nickel catalyst
刊名: APPLIED ENERGY
发表日期: 2013-07-01
DOI: 10.1016/j.apenergy.2013.02.039
卷: 107, 页:297-303
收录类别: SCI
文章类型: Article
部门归属: DNL19
项目归属: DNL1902
产权排名: 1,1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Energy & Fuels ;  Engineering
英文摘要: In this work, an Al2O3-coated SiC foam monolith was used as the support of a Ni-based catalyst, which was applied for coupling partial oxidation and steaming reforming of methane to produce syngas or hydrogen. This monolithic catalyst showed excellent structural stability in a 900 h endurance test. Its catalytic activity and stability were also excellent during the first 500 h of the endurance test with a CH4 conversion (similar to 96%) near thermodynamic equilibrium. Subsequently, it deactivated gradually and its activity was reduced by 7% in the following 400 h. This deactivation is ascribed to deposited carbon that originated from methane cracking in the upper part of the stainless steel reactor. Fresh and used catalyst samples were characterized by XRD, BET, SEM and XRF methods. The results showed that the active coating consisting of Al2O3, and the components loaded on it was partially dislodged from the SiC substrate during the reaction, but the loss of Ni loaded on the Al2O3 coating was less than the loss of Al2O3. This is ascribed to most Ni species being located on the outer surface of the monolithic support, which was more weakly corroded by the reactant flow. The shrinkage of the active coating and the sintering of nickel particles were also observed in the endurance test. Moreover, the SiC foam supported Ni-based monolithic catalyst showed a more homogeneous bed temperature distribution compared with a traditional Ni/Mg-Al spinel catalyst. (C) 2013 Elsevier Ltd. All rights reserved.
关键词[WOS]: PARTIAL OXIDATION ;  HYDROGEN-PRODUCTION ;  WATER-VAPOR ;  SYNTHESIS GAS ;  SYNGAS ;  SILICA ;  TEMPERATURE ;  PHASE ;  PERFORMANCE ;  ENGINES
语种: 英语
WOS记录号: WOS:000318456700026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117568
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.Toyama Univ, Sch Engn, Dept Appl Chem, Toyama 9308555, Japan
3.ACT C, JST, Kawaguchi, Saitama 3320012, Japan

Recommended Citation:
Li, Chunlin,Xu, Hengyong,Hou, Shoufu,et al. SiC foam monolith catalyst for pressurized adiabatic methane reforming[J]. APPLIED ENERGY,2013,107:297-303.
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