非平衡等离子体转化甲烷的研究

《非平衡等离子体转化甲烷的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、、一¨!；1E!C中囡斜誓技赤大学⋯一s⋯⋯⋯⋯⋯⋯⋯⋯Y⋯⋯A博士学位论文固论文题目非平衡等离子体转化甲烷的研冗作者姓名学科专业导师姓名完成时间电流、电压、电量、放电功率等基本参数随实验条件改变而产生的变化。实验结果表明在我们所采用的放电装置下产生的介质阻挡放电为电晕诱导的介质阻挡放电。在介质阻挡放电条件下，进行了甲烷和二氧化碳转化反应。对实验结果加以分析。并对甲烷和二氧化碳反应过程进行了探讨。关键词：甲烷，_二氧化碳，合成气，碳二烃，磁驱动非热电弧，电晕诱导介质阻挡放电，等离子体催化ll英文摘要—————————————————————————————————————————————

2、——————一一一ABSTRACTMethaneisaprincipalcomponentofnaturalgas．Withthelackofcrudeoiiresourcesintheworld，thedevelopmentofmethaneutilizationasthefeedstock．insteadofcrudeoil，fortheproductionofchemicalhasbeenextensivelvstudied．Theapplicationofplasmatechnologyiscontinuouslygrowinginchemistry,metallurgy,mic

3、roelectronics，andenvironmentalprotection．Generally,twoverydifferentkindsofplasmaareusedforresearchandindustrialapplications：hotquasi-equilibriumplasmasandcoldnon—equilibriumplasmas．Oneofthechallengensofmodemplasmachemistryistounitetheadvancesofthesetwoverydifferentplasmasystems．Mostofthelarge。sca

4、leplasmachemicalapplicationsrequirehighpowerandhighpressureforhighreactorproductivity．Itisalsoimportanttohaveahighdegreeofnon。equilibriumwithhighelectrontemperatureanddensitytosuppogselectivechemicalprocesses．Therefore，itisnecessarytohaveapowerfuldschargethatgeneratesnon-equilibriumplasmaforchemi

5、calapplicationswithbothhighefficiencyandselectivity．Inthisstudy,thenon‘thermalequilibriumarcdischargeandDBDexperimentswereinvestigatedthroughthemeasurements．Themethanecouplingreactionandcarbondioxidereformingmethanereactionwereperformed．Theresultsofthemethaneconversioninthosetwoplasmasshowedthatn

6、on．thermalequilibriumplasmafromtheglidingarcandDBDcouldconvertmethanetogoalproductefficiently．AndpromisingcompositionofC2hydrocarbon／syngasoutputswereobtained．HereJiststhemainWOrk：Thenewtypeofnon‘thermalequilibriumarcdischargesdrivenbymagnetismexperimentalsetup(includinghighvoltagepowersupply,ele

7、ctromagneticfiledgeneratorandothercorrelatedparts)wasestablished．(MagneticfieldintensityB≈o～1．41,alterablepowersupplyvoltage：2000-7500V)．ThehighspeedCCDandPhotomultiplierTube(PMT)wereusedtOmeasurethevelocityanddiameter