| STUDIES OF THE HOMOLOGATION OF METHANE ONSUPPORTED TRANSITION METAL CATALYSTS |
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| 作者姓名： | YAN Zi-Feng |
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| 作者单位： | YAN Zi-Feng(Department of Chemical Engineering，University of Petroleum Dongying，Shandong 257062 |
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| 摘 要： | Introduction0ncofthcintriguingpr0blcmsinhctcrogcncouscatal}'sisisthcactit'ationanddircctconversionofmcthancintoliquidfucIanduscful.h..i..l,lllMcthancactivationisvcry'difficultbccauscn1cthancisathcrmod}'namicalI}'stablccompoundt`ithanoblcgas-likcconfigurati0nThcvcry'strongtctrahcdralC-Hbonds(435kJ/mol)offcrnofiJnctionalgroups,magncticm0mcnts'orpolardistortionstofacilitatcchcmicalattackThismakcsmcthanelcssrcactivcthanncarl}'allitsconvcrsionproducts.Rccentl}'oxidativccouplinghasbecnconsidcrcda…
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STUDIES OF THE HOMOLOGATION OF METHANE ON SUPPORTED TRANSITION METAL CATALYSTS |
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| YAN Zi-Feng.STUDIES OF THE HOMOLOGATION OF METHANE ONSUPPORTED TRANSITION METAL CATALYSTS[J].Journal of Natural Gas Chemistry,1996,5(3):261-271. |
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| Authors: | Zifeng Yan Jinzhen Xue Shikong Shen Hongli Wang |
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| Institution: | University of Petroleum; Lanzhou Institute of Chemical Physics |
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| Abstract: | The homologation of methane on supported transition metal (Pt,Pd, Co, Ni) catalysts was investigated by using the transient responsetechnique.An important approach ls to split the overall reaction into tworeaction steps occurring under moderate conditions, In which methane is firstthermally activated and higher hydrocarbon is subsequentiv synthesized uponhydrogenation. In such a two-step route the thermodynamic limitations canbe effectively overcome and the homologation of methane may be practicallyachieved .The optimum conversion of methane on 5% PtSiO2 catalyst in thehomologation of methane is 9.91% reached at 521 K. The conversion ofmethane on 5% Co/SiO2 catalyst is 61% obtained at 523K. |
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| Keywords: | homologation of methane higher hydrocarbon formation transition metal catalysts decomposition of methane |
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