Investigation of the surface reaction network of the oxidative coupling of methane over Na2WO4/Mn/SiO2 catalyst by temperature programmed and dynamic experiments
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- 作者：Vinzenz Fleischer v.fleischer@mailbox.tu-berlin.de" class="auth_mail" title="E-mail the corresponding author ; Rolf Steuer ; Samira Parishan ; Reinhard Schomä ; cker ; schomaecker@mailbox.tu-berlin.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：Oxidative coupling of methane ; Na2WO4/Mn/SiO2 ; Temperature programmed experiments ; Dynamic experiments
- 刊名：Journal of Catalysis
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：341
- 期：Complete
- 页码：91-103
- 全文大小：1584 K
文摘
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Reactions of CXHY on Na2WO4/Mn/SiO2 in temperature programmed methods were studied.
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CH4 is converted into C2 and COX, while C2H6 is oxidized to C2H4 by two mechanisms.
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Dynamic experiments support a MvK mechanism for the OCM on Na2WO4/Mn/SiO2.
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Calculated EA for selective CH4 activation, by strongly bound O*, is 275 kJ/mole.
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Partial pressure variation experiments show linear correlation for CH4 activation.