物理化学学报 >> 2004, Vol. 20 >> Issue (05): 557-560.doi: 10.3866/PKU.WHXB20040523

研究简报 上一篇    

新型多尖端旋转电极甲烷偶联等离子体反应器

崔锦华;许根慧;刘昌俊   

  1. 辽宁师范大学化学化工学院,大连　116021;天津大学C1化工国家重点实验室,天津　300072
  • 收稿日期:2003-11-18 修回日期:2004-01-05 发布日期:2004-05-15
  • 通讯作者: 崔锦华 E-mail:jeanefer@eyou.com

Novel Plasma Reactor with Rotary Multi-tip Electrode Used in CH4 Coupling

Cui Jin-Hua;Xu Gen-Hui;Liu Chang-Jun   

  1. School of Chemistry ＆ Chemical Engineening, Liaoning Normal University, Dalian　116021;The State Key Laboratory of C1 Chemical Techniques, Tianjin University, Tianjin　300072
  • Received:2003-11-18 Revised:2004-01-05 Published:2004-05-15
  • Contact: Cui Jin-Hua E-mail:jeanefer@eyou.com

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摘要： 研制了一种新型的带有一个多尖端旋转电极对一个同心圆筒型固定电极的甲烷放电制备碳二烃的等离子体反应器.以氢气共存条件下甲烷偶联研究对此反应器作出了评价.在此反应器中，反应物流垂直穿过两电极之间的环行等离子体反应区.在大约40 V供电电压、20 kHz脉冲放电等离子体条件下，在长时间连续反应后没有产生大量积炭.在同样的条件下，此多尖端旋转电极工艺比固定的尖端平板电极工艺具有较高的甲烷转化率、碳二烃单程收率以及较高的能量效率.

关键词: 等离子体, 旋转多尖端电极, 甲烷, 碳二烃

Abstract: A novel plasma reactor with rotary multi-tip electrode and a fixed concentric cylinder electrode has been developed in order to use in CH4 discharge and to produce unsaturated C2 hydrocarbons.CH4 coupling in the presence of H2 has been investigated to evaluate the plasma reactor. In the reactor, flowing reactants run crisscross through the circular plasma zone between the two electrodes. No substantial amount of coke is observed on surface of the rotary multi-tip and fixed cylinder electrodes after a long time of the continuous reaction at about 40 V of supplied voltage under 20 kHz of pulse frequency discharge plasmas. The rotary multi-tip electrode process is possessed of higher CH4 conversion and higher C2 hydrocarbons single pass yield and higher energy efficiency than the plasma processes using fixed wire-plate electrodes under the same conditions.

Key words: Plasma, Rotary multi-tip electrodes, Methane, C2 hydrocarbons