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新型多尖端旋转电极甲烷偶联等离子体反应器
引用本文:崔锦华,许根慧,刘昌俊.新型多尖端旋转电极甲烷偶联等离子体反应器[J].物理化学学报,2004,20(5):557-560.
作者姓名:崔锦华  许根慧  刘昌俊
作者单位: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
基金项目:国家自然科学基金(29776037),中国石化总公司科技发展基金(X500005)资助项目~~
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
收稿时间:2003-11-18
修稿时间:2004-01-05

Novel Plasma Reactor with Rotary Multi-tip Electrode Used in CH4 Coupling
Abstract.Novel Plasma Reactor with Rotary Multi-tip Electrode Used in CH4 Coupling[J].Acta Physico-Chimica Sinica,2004,20(5):557-560.
Authors:Abstract
Institution:School of Chemistry & Chemical Engineening, Liaoning Normal University, Dalian 116021;The State Key Laboratory of C1 Chemical Techniques, Tianjin University, Tianjin 300072
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.
Keywords:Plasma  Rotary multi  tip electrodes  Methane  C2 hydrocarbons  
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