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题名: Gas phase catalytic partial oxidation of toluene in a microchannel reactor
作者: Ge, H;  Chen, GW;  Yuan, Q;  Li, HQ
通讯作者: 陈光文
关键词: toluene ;  heterogeneous catalytic reaction ;  selective oxidation ;  microreactor ;  V/Ti oxide catalysts
刊名: CATALYSIS TODAY
发表日期: 2005-12-15
DOI: 10.1016/j.cattod.2005.09.006
卷: 110, 期:1-2, 页:171-178
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 903
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Gas phase partial oxidation of toluene over V/Ti oxide catalysts has been successfully performed in a microchannel reactor, which provides very good mass and heat transfer conditions. With the elimination of hot spots, which are known as the most negative factors for partial oxidation of hydrocarbons, steady and uniform reaction conditions can be achieved in the catalyst bed by using, the microreactor. Since the best performance of the catalysts might be exploited, the selectivity of partial oxidation products of toluene has remarkably increased compared to the traditional packed fixed-bed reactor, even without the bother of modifying the catalysts, diluting the reactants or catalysts with inert contents to avoid hot spots or improve the diffusion and mixing. Furthermore, in virtue of its inherent safety features, when using pure oxygen as oxidant, the reactions were handled safety within the explosion limits in the microreactor. With TiO2 carried V2O5 as catalysts, the total selectivity of benzaldehyde and benzoic acid reaches around 60%, and the toluene conversion is about 10%. The conversion can go up without violent decline of selectivity, unlike most fixed bed reactors. Space time yield of 3.12 kg h(-1) L-1 calculated on the basis of the channel volume has been achieved. The influence of operating conditions has been investigated in detail in the microreactor. (c) 2005 Elsevier B.V. All rights reserved.
关键词[WOS]: SELECTIVE OXIDATION ;  HYDROGEN-PRODUCTION ;  OXIDE CATALYSTS ;  BENZOIC-ACID ;  MICROREACTOR ;  EXCHANGER ;  SYSTEM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000233890900021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/92983
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.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Ge, H,Chen, GW,Yuan, Q,et al. Gas phase catalytic partial oxidation of toluene in a microchannel reactor[J]. CATALYSIS TODAY,2005,110(1-2):171-178.
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