Enhanced Ru/Alumina catalyst via the adsorption-precipitation (AP) method for the hydrogenation of dimethyl maleate
Wang, Lei; Abudukelimu, Nuermaimaiti; Ma, Yubo; Qing, Shaojun; Gao, Zhixian; Eli, Wumanjiang
2014
发表期刊REACTION KINETICS MECHANISMS AND CATALYSIS
ISSN18785190
卷号112期号:1页码:117-129
摘要Two methods, incipient wetness impregnation (IM) and adsorptionprecipitation (AP) were used to prepare alumina-supported Ru catalysts. Using the selective hydrogenation of dimethyl maleate as a probe reaction, the obtained results demonstrated an enhanced catalytic activity with the AP method as compared to the IM technique. It was also found that higher hydrogenation activity was obtained with samples that were directly activated in H2 flow. In contrast, the activity decreased seriously when the catalyst samples were subjected to a calcination pretreatment prior to activation with H2 reduction, especially for the IM technique. Additional catalytic testings on Ru/Al(AP)-R with chlorine addition demonstrated that the catalytic activity was greatly decreased, suggesting that chlorine has a negative effect on the hydrogenation behaviors of Ru. Combined with the characterization results of XRD, H2-TPR, H2-TPD and XPS, the advantage of the AP method can be summarized as the following: this technique effectively eliminates chlorine, thus resulting in a better dispersion of Ru species and decreasing the negative influence of chlorine on Ru. A superior Ru/alumina catalyst can be obtained with the AP followed by direct activation with H2 reduction.
关键词Adsorption-precipitation Ru Catalyst Dimethyl Maleate Chlorine
DOI10.1007/s11144-014-0680-8
收录类别SCI
WOS记录号WOS:000339378200009
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/3776
专题新疆维吾尔自治区精细化工工程技术研究中心
作者单位Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Univ Chinese Acad Sci, Beijing 100000, Peoples R China;Chinese Acad Sci, Inst Coal Chem, Taiyuan 030000, Peoples R China
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Wang, Lei,Abudukelimu, Nuermaimaiti,Ma, Yubo,et al. Enhanced Ru/Alumina catalyst via the adsorption-precipitation (AP) method for the hydrogenation of dimethyl maleate[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2014,112(1):117-129.
APA Wang, Lei,Abudukelimu, Nuermaimaiti,Ma, Yubo,Qing, Shaojun,Gao, Zhixian,&Eli, Wumanjiang.(2014).Enhanced Ru/Alumina catalyst via the adsorption-precipitation (AP) method for the hydrogenation of dimethyl maleate.REACTION KINETICS MECHANISMS AND CATALYSIS,112(1),117-129.
MLA Wang, Lei,et al."Enhanced Ru/Alumina catalyst via the adsorption-precipitation (AP) method for the hydrogenation of dimethyl maleate".REACTION KINETICS MECHANISMS AND CATALYSIS 112.1(2014):117-129.
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