物理化学学报 >> 2000, Vol. 16 >> Issue (09): 839-843.doi: 10.3866/PKU.WHXB20000915

研究简报 上一篇    下一篇

有氧气氛下等离子体甲烷偶联反应的研究

朱爱民, 张秀玲, 宫为民, 张报安   

  1. 中国科学院大连化学物理研究所，大连 116023|大连理工大学碳资源综合利用开放实验室，大连 116012
  • 收稿日期:1999-12-03 修回日期:2000-03-06 发布日期:2000-09-15
  • 通讯作者: 朱爱民 E-mail:amzhu@ms.dicp.ac.cn

Study on Coupling of Methane under Pulse Corona Plasma in the Presence of Oxygen

Zhu Ai-Min, Zhang Xiu-Ling, Gong Wei-Min, Zhang Bao-An   

  1. Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023|Laboratory of Comprehensive Utilization for Carbonaceous Resources,Dalian University of Technology,Dalian 116012
  • Received:1999-12-03 Revised:2000-03-06 Published:2000-09-15
  • Contact: Zhu Ai-Min E-mail:amzhu@ms.dicp.ac.cn

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关键词: 甲烷偶联, 脉冲电晕等离子体, 有氧

Abstract:

The coupling of methane in the presence of oxygen under pulse corona plasma was examined under normal pressure and at ambient temperature. Experimental results show that composition and distribution of C2 products in the presence of oxygen is similar to that in the absence of oxygen. With increasing energy input to the plasma reactor, methane conversion, oxygen conversion and C2 yield were enhanced. Increasing the O2/CH4 ratio gave higher conversions of methane and oxygen. The yield of C2 products increased slightly only in the range of O2/CH4 ratio less than 0.16 when feeding with a mixture of methane and oxygen. If oxygen is introduced at the end of the methane plasma, a higher C2 yield and lower CO yield can be obtained and CO2 can not be detected in the product.

Key words: Coupling of methane, Pulse corona plasma, In the presence of oxygen