新型多尖端旋转电极甲烷偶联等离子体反应器(英文)  

Novel Plasma Reactor with Rotary Multi-tip Electrode Used in CH_4 Coupling

作　　者：崔锦华[1] 许根慧[2] 刘昌俊[2] 

机构地区：[1]辽宁师范大学化学化工学院,大连116021 [2]天津大学C1化工国家重点实验室,天津300072

出　　处：《物理化学学报》2004年第5期557-560,共4页Acta Physico-Chimica Sinica

基　　金：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40V供电电压、20kHz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.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 C-2 hydrocarbons. CH4 coupling in the presence of H 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 C-2 hydrocarbons single pass yield and higher energy efficiency than the plasma processes using fixed wire-plate electrodes under the same conditions.

关 键 词：旋转电极 甲烷 偶联等离子体反应器 碳二烃 收率 供电电压 氢气 CH4 

分 类 号：TQ051[化学工程]