期刊文献+

介质阻挡放电-催化降解空气中甲苯的研究 被引量:19

Study on toluene destruction in air stream by dielectric barrier discharge combined with catalytic system
下载PDF
导出
摘要 着重考察了催化剂分解O3对介质阻挡放电-催化降解甲苯效果的影响,对比不同催化剂在3种催化剂结合方式下对O3分解能力及甲苯降解效果。同时研究了影响O3产生及分解的条件——放电电压、水汽和氧含量对甲苯降解的影响。结果表明,催化剂的O3分解能力越强,对甲苯的降解效果越好,O3的催化分解在甲苯降解过程中起重要作用。当放电电压为10 kV时,在余辉区和等离子体区加入催化剂,甲苯的去除率分别由无催化剂时候的33.8%提高到55.6%~66.2%和65.2%~74.2%。气流中的水汽对O3的产生和分解都产生不利影响,可降低甲苯的去除率。氧气含量高时,一方面增加O3的产生,另一方面降低催化剂对O3的分解,在O2含量为5%时,甲苯去除效果较佳。 To study the performance of O3 decomposition by catalyst on the toluene destruction in dielectric barrier discharge(DBD) catalytic system, the toluene conversion and O3 decomposition by beterogeneous catalyst in three different combinations were researched. Meanwhile the effects of applied voltage, water and oxygen on toluene destruction were studied, which originally have effects on the production and decomposition of O3. Resuits show that catalysts decomposing O3 more effectively lead to better toluene destruction. It is comcluded that O3 decomposition plays an important part in the toluene destruction. When applied voltage is 10 kV, toluene conversion increases to 55.6% - 66.2% with catalyst placed downstream, and to 65.2% -74.2% with catalyst placed in situ. Water vapor inhibits the production and decomposition of ozone, resulting in lower toluene conversion. The preferably contention of oxygen is determined to be 5% for its contribution in O3 production and decomposition.
出处 《环境工程学报》 CAS CSCD 北大核心 2008年第7期977-982,共6页 Chinese Journal of Environmental Engineering
基金 国家自然科学基金资助项目(20577011)
关键词 介质阻挡放电 等离子体 催化 臭氧 dielectric barrier discharge plasma catalysis ozone
  • 相关文献

参考文献17

  • 1郭玉芳,叶代启.废气治理的低温等离子体-催化协同净化技术[J].环境污染治理技术与设备,2003,4(7):41-46. 被引量:50
  • 2[2]Van Durme J.,Dewulf J.,Sysmans W.,et al.Efficient toluene abatement in indoor air by plasma catalytic hybrid system.Applied Catalysis B:Environmental,2007,74:161~169
  • 3[3]Futamura S.,Zhang A.,Einaga H.,et al.Involvement of catalyst materials in non-thermal plasma chemical processing of hazardous air pollutants.Catalysis Today,2002,72:259~265
  • 4[4]Ayrault C.,Barrauh J.,Blin-Simiand N.,et al.Oxidation of 2-heptanone in air by a DBD-type plasma generated within a honeycomb monolith supported Pt-based catalyst.Catalysis Today,2004,89:75~81
  • 5[5]Magureanu M.,Mandache N.B.,Eloy P.,et al.Plasma -assisted catalysis for volative organic compounds abatement.Applied Catalysis B:Environmental,2005,61:12~20
  • 6[6]Subrahmanyam Ch.,Magureanu M.,Renken A.,et al.Catalytic abatement of volatile organic compounds assisted by non-thermal plasma Part Ⅱ.Applied Catalysis B:Environmental,2006,65:157~162
  • 7[7]Delagrange S.,Pinard L.,Tatibouct J.M.Combination of a non-thermal plasma and catalyst for toluene removal.Applied Catalysis B:Environmental,2006,68:92~98
  • 8[8]Roland U.,Holzer F.,Kopinke F.D.Combination of nonthermal plasma and heterogeneous catalysis for oxidation of volatile organic compounds Part 2.Applied Catalysis B:Environmental,2005,58:217~226
  • 9[9]Oda T.,Takahashi T.TCE decomposition by the non-thermal plasma process concerning ozone effect.IEEE Industry Application Society Annual Meeting,2002.1822~1828
  • 10[10]Van Durme J.,Dewulf J.,Sysmans W.,et al.Abatement and degradation pathways of toluene in indoor air by positive corona discharge.Chemosphere,2007,68:821~1829

二级参考文献43

  • 1宁成,李劲,周文俊,韩才元.SO_2和NO在脉冲电晕放电中氧化及影响因素研究[J].华中理工大学学报,1994,22(1):17-22. 被引量:7
  • 2周黎明,杨兰均.高压脉冲电晕放电脱硫脱硝技术[J].高电压技术,1995,21(3):25-28. 被引量:8
  • 3白敏冬,周锦进,白希尧,依成武.超高压脉冲综合治理SO_2、NO_x和CO_2气体[J].大连理工大学学报,1996,36(1):47-50. 被引量:3
  • 4清山哲郎 黄敏明(译).金属氧化物及其催化作用[M].合肥:中国科学技术大学出版社,1991..
  • 5孟殿强 陈济民 刘术宝 等.后置式汽车尾气净化器[P].中国专利,实用新型,00231748.6,2001..
  • 6干鲷真信 市川腾著 陆世维译.均相催化与多相催化入门[M].北京:宇航出版社,1990..
  • 7[4]Rudolph R. Francke K P, Miessner H. Concentration dependence of VOC decomposition by dielectric barrier discharges[J]. Plasma Chemistry and Plasma Processing,2002, 22(3): 401 -412.
  • 8[5]Guo Yufang, Ye Daiqi, Chen Kefu. Effect of oxygen contenton toluene decomposition in wire-plate dielectric barrier discharge reactor[Z]. 5th Electrohydrodynamics International Workshop, Poitiers, Frace, 2004.
  • 9[6]Oda T. Non-thermal plasma processing for environmental protection: decomposition of dilute VOCs in air[J]. Journal of Electrostatics, 2003, 57(3-4): 293-311.
  • 10[7]Roland U, Holzer F, Kopinke F D. Improved oxidation of air pollutants in a non-thermal plasma [J]. Catalysis Today,2002, 73(3-4): 315- 323.

共引文献81

同被引文献265

引证文献19

二级引证文献132

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部