填充床介质阻挡放电协同催化降解气态苯的研究

广东工业大学学报 ›› 2011, Vol. 28 ›› Issue (3): 9-11.

填充床介质阻挡放电协同催化降解气态苯的研究

大连理工大学 1.静电与特种电源研究所，2.环境学院，3.工业生态与环境工程教育部重点实验室,辽宁大连 116024

出版日期:2010-10-06 发布日期:2010-10-06
作者简介:姜楠(1986-)，女，硕士研究生，主要研究方向为环境等离子体技术.
基金资助:
国家“863”计划资助项目（2009AA064101-4）

Research on Dielectric Barrier Discharge of Packed Beds and Benzene Degradation by Plasma Combined with Catalysts

1. Institute of Electrostatic and Special Power， 2. School of Environmental Science and Technology，3. Key Laboratory of Industrial Ecology and Environmental Engineering of Education Ministry, Dalian University of Technology, Dalian 116024, China

Online:2010-10-06 Published:2010-10-06

摘要/Abstract

摘要： 利用介质阻挡放电产生的非平衡等离子体对气态苯的降解进行了实验研究.实验选用同轴圆筒式的填充床反应器，填充床内填充直径为3 mm的玻璃珠.实验采用的催化剂分别为负载量为8%的Mn/γAl2O3、Fe/γAl2O3、Co/γAl2O3催化剂.气体首先由反应器上方进入，通过石英玻璃管内侧放电区域，流经填充床放电区域后排出.实验分别考查了有无玻璃珠、苯初始体积分数及催化剂对苯降解效果的影响.在本实验中，玻璃珠的填充对苯的降解有促进作用.随着苯初始体积分数的增大，苯的降解效率逐渐降低.3种金属催化剂对苯的催化性能依次为：Mn >Co > Fe. 

关键词: 介质阻挡放电；填充床放电；苯；催化剂

Abstract: Experiments were performed to evaluate the efficiency of benzene decomposition by using packedbed coaxial cylindrical dielectric barrier discharge reactor. The packed beds were filled with glass beads with a diameter of 3 mm. The catalysts prepared were 8% Mn/γAl2O3, 8% Fe/γ-Al2O3 and 8% Co/γAl2O3. The benzene was allowed to have access into the air inlet of the reactor before being introduced into the discharge regions in quartz glass tubes. Then it passed by discharge regions of the packedbeds, and finally flew out. The experiments were conducted to investigate the packed beds with or without glass beads, the initial concentration of benzene and the catalysts' effect on the degradation of benzene respectively. The results indicate that higher efficiency is achieves with the packed beds filled with glass beads; with the increasing of initial concentration of benzene, degradation efficiency of benzene decreases; the order of the degradation efficiency of the catalysts is Mn>Co>Fe.

Key words: dielectric barrier discharge; packedbed discharge; benzene; catalyst

姜楠1, 2, 鲁娜1, 3, 张玉2, 3, 吴彦1, 3, 李杰1, 3. 填充床介质阻挡放电协同催化降解气态苯的研究[J]. 广东工业大学学报, 2011, 28(3): 9-11.

JIANG Nan1, 2 , LU Na1, 3 , ZHANG Yu2, 3 , WU Yan1, 3 , LI Jie1, 3 . Research on Dielectric Barrier Discharge of Packed Beds and Benzene Degradation by Plasma Combined with Catalysts[J]. Journal of Guangdong University of Technology, 2011, 28(3): 9-11.

参考文献

［1］李锻, 王洪昌, 张娣,等. 用无声放电同时降解气态混合污染物四氯乙烯/间二甲苯［J］. 河北大学学报:自然科学版, 2007, 27(6)：615-619.

［2］ Ding Huixian, Zhu Aimin, Lu Fugong, et al. Low temperature plasmacatalystic oxidation of formaldehyde in atmospheric pressure gas streams［J］. Applied Physics, 2006, 39: 603-3608.

［3］ Kohki Satoh, Toshiharu Matsuzawa, Hidenori Itoh, et al. Decomposition of benzene in a corona discharge at atmospheric pressure［J］. Thin Solid Films,2008, 516: 4423-4429. 

［4］董淑玲.　介质阻挡放电脱除NO的研究［D］. 南京：南京理工大学，2007.

［5］孟诺, 鲁娜, 李国峰, 等. 填充床/沿面复合放电等离子体降解苯的研究［J］. 河北大学学报：自然科学版, 2010,30(5): 530-533.

［6］ Delagrange S, Pinard L, Tatibout J M. Combination of a nonthermal plasma and a catalyst for toluene removal from air: manganese based oxide catalysts ［J］.　Applied Catalysis B: Environmental, 2006, 68(1): 92-98.

［7］ Chen H L, Lee H M, Chen S H, et al. Review of packedbed plasma reactor for ozone generation and air pollution control［J］. Industrial & Engineering Chemistry Research ,2008, 47: 2122-2130.

［8］ Rubio S J, Quintero M C, Rodero A, et al. Assessment of a new carbon tetrachloride destruction system based on a microwave plasma torch operating at atmospheric pressure ［J］. Journal of Hazardous Materials, 2007, 148(1-2): 419-427.

［9］ Hisahiro E, Shigeru F. Catalytic oxidation of benzene with ozone over aluminasupported manganese oxides ［J］. Journal of Catalysis, 2004, 227: 304312.〖ZK）〗

［10］ Durme J V, Dewulf J, Ssysmans W, et al. Efficient toluene abatement in indoor air by a plasma catalytic hybrid system［J］. Applied Catalysis B: Environmental, 2007, 74: 161-169.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed