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Vol. 25 No. 16 (2013): Vol 25 Issue 16

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Oxidative Coupling of Methane Over Mixed BaCl2-TiO2-SnO2 and Na2WO4-Mn/SiO2 Catalysts

https://doi.org/10.14233/ajchem.2013.15116
Zhonglai Wang
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China ; University of Chinese Academy of Sciences, Beijing 10049, P.R. China
Long Chen
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
Xu Luo
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China ; University of Chinese Academy of Sciences, Beijing 10049, P.R. China
Guojun Zou
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
Runxiong Gao
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
Lingjun Chou
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
Xiaolai Wang
State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China

Corresponding Author(s) : Lingjun Chou

ljchou@licp.cas.cn

Asian Journal of Chemistry, Vol. 25 No. 16 (2013): Vol 25 Issue 16

Abstract

Oxidative coupling of methane (OCM) has been studied over a mixed catalyst constituted by Na2WO4-Mn/SiO2 (W) and BaCl2-TiO2-SnO2 (B). The effects of reaction temperature, gas hourly space velocity (GHSV) and CH4/O2 ratio on catalytic performance were systematic investigated. Compared with the single component counterpart, the results indicated that ethylene yield was significantly enhanced over the mixed catalysts. When the BaCl2-TiO2-SnO2/Na2WO4-Mn/SiO2 (B/W) ratio was controlled at 1/5 (v/v), the ethylene yield reached 22.2 %, which was 7.1 %, 2.1 % higher than the single Na2WO4-Mn-SiO2, BaCl2-TiO2-SnO2 catalyst, respectively. Besides, the ethylene yield was higher than 20 % over the mixed catalyst in wide reaction condition range.

Keywords

Oxidative coupling of methane Mixed catalyst Ethylene
Wang, Z., Chen, L., Luo, X., Zou, G., Gao, R., Chou, L., & Wang, X. (2013). Oxidative Coupling of Methane Over Mixed BaCl2-TiO2-SnO2 and Na2WO4-Mn/SiO2 Catalysts. Asian Journal of Chemistry, 25(16), 9179–9184. https://doi.org/10.14233/ajchem.2013.15116
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