Conversion of methane through dielectric-barrier discharge plasma

查看全文 作　　者：Baowei [1]WANG;Xiaolei [1]CAO;Kuanhui [1]YANG;Genhui [1]XU

机构地区：[1]Key Laboratory for Green Chemical Technology,School of Chemical Engineering Technology,Tianjin University,Tianjin 300072,China

出　　处：《Frontiers of Chemical Science and Engineering》索引2008年第2卷第4期,共6页

基　　金：supported by the National Natural Science Foundation of China(Grant No.20606023);the National Key Natural Science Foundation of China(No.20490203). 摘　　要：Methane coupling to produce C2 hydrocar-bons through a dielectric-barrier discharge(DBD)plasma reaction was studied in four DBD reactors.The effects of high voltage electrode position,different discharge gap,types of inner electrode,volume ratio of hydrogen to methane and air cooling method on the conversion of methane and distribution of products were investigated.Conversion of methane is obviously lower when a high voltage electrode acts as an outer electrode than when it acts as an inner electrode.The lifting of reaction temper-ature becomes slow due to cooling of outer electrode and the temperature can be controlled in the expected range of 60℃-150℃for ensuring better methane conversion and safe operation.The parameters of reactors have obvious effects on methane conversion,but it only slightly affects distribution of the products.The main products are ethyl-ene,ethane and propane.The selectivity of C2 hydrocar-bons can reach 74.50%when volume ratio of hydrogen to methane is 1.50. 关键词：METHANE dielectric-barrier discharge PLASMA C2 hydrocarbon REACTOR

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Conversion of methane through dielectric-barrier discharge plasma

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