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Selective hydrogenation of benzene to cyclohexene on a Ru/Al2O3/cordierite monolithic catalyst: Effect of mass transfer on the catalytic performance
Zhao, Yujun1,2; Zhou, Jin1; Zhang, Jianguo1,2; Li, Deyi1; Wang, Shudong1; Wang SD(王树东)
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
2008-07-16
DOI10.1021/ie071574g
Volume47Issue:14Pages:4641-4647
Indexed BySCI
SubtypeArticle
Department9
Funding Project901
Contribution Rank1;1
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordLIQUID-PHASE HYDROGENATION ; AQUEOUS SALT SOLUTION ; BUBBLE-TRAIN FLOW ; RUTHENIUM CATALYSTS ; REACTION MODIFIERS ; REACTORS ; SILICA ; CAPILLARIES ; TOLUENE
AbstractA Ru/Al2O3/cordierite monolithic catalyst was prepared, characterized, and examined in selective hydrogenation of benzene to cyclohexene in a monolithic fixed-bed reactor with an aqueous solution of ZnSO4. The Carberry number and Wheeler-Weisz group were calculated to analyze the effects of external and internal diffusions of H-2, benzene, and cyclohexene. According to the results of calculations, the water film, solubility, and diffusion coefficients of the three reactants (H-2, benzene, and cyclohexene) play important roles in the mass-transfer rate. Under proper reaction conditions, the effects of the external mass transfer of H-2 and benzene on the reaction rate are negligible. For the hydrogenation of cyclohexene, the diffusion of cyclohexene from the organic phase to the catalyst is the limiting step in the presence of water, which is the most important factor for obtaining high cyclohexene selectivity. The absence of pore diffusion of the three reactants, which is attributed to the thin eggshell distribution of in the catalyst, is another important factor for the higher cyclohexene selectivity. In addition, the optimum reaction conditions were found to be 413-423 K and 5 MPa.
Language英语
URL查看原文
WOS IDWOS:000257501700008
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101523
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang SD(王树东)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Yujun,Zhou, Jin,Zhang, Jianguo,et al. Selective hydrogenation of benzene to cyclohexene on a Ru/Al2O3/cordierite monolithic catalyst: Effect of mass transfer on the catalytic performance[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2008,47(14):4641-4647.
APA Zhao, Yujun,Zhou, Jin,Zhang, Jianguo,Li, Deyi,Wang, Shudong,&王树东.(2008).Selective hydrogenation of benzene to cyclohexene on a Ru/Al2O3/cordierite monolithic catalyst: Effect of mass transfer on the catalytic performance.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,47(14),4641-4647.
MLA Zhao, Yujun,et al."Selective hydrogenation of benzene to cyclohexene on a Ru/Al2O3/cordierite monolithic catalyst: Effect of mass transfer on the catalytic performance".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 47.14(2008):4641-4647.
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