CAJ | 학술논문

采用150 Hz中频高压交流电源作为低温等离子体发生源,选用典型的微孔γAl_2O_3球形颗粒吸附剂(以下简称γAl_2O_3)作为等离子体反应器填充材料,协同低温等离子体法催化降解甲苯废气.考察了在不同条件下,γAl_2O_3的甲苯吸脱附效果和吸附增效低温等离子体法的甲苯去除效果.结果表明,甲苯降解反应主要发生在γAl_2O_3的表面,甲苯的去除率在一定的浓度范围内与γAl_2O_3表面吸附的甲苯量成正比关系;填充γAl_2O_3有利于提高甲苯去除率及等离子体反应器能量利用率;γAl_2O_3对臭氧的降解表现出一定的促进作用.
채용150 Hz중빈고압교류전원작위저온등리자체발생원,선용전형적미공γAl_2O_3구형과립흡부제(이하간칭γAl_2O_3)작위등리자체반응기전충재료,협동저온등리자체법최화강해갑분폐기.고찰료재불동조건하,γAl_2O_3적갑분흡탈부효과화흡부증효저온등리자체법적갑분거제효과.결과표명,갑분강해반응주요발생재γAl_2O_3적표면,갑분적거제솔재일정적농도범위내여γAl_2O_3표면흡부적갑분량성정비관계;전충γAl_2O_3유리우제고갑분거제솔급등리자체반응기능량이용솔;γAl_2O_3대취양적강해표현출일정적촉진작용.
In this paper, the adsorption enhanced non-thermal plasma was employed for the decomposition of toluene. Alternating current high voltage with intermediate frequency of 150 Hz was used to produce non-thermal plasma, and γAl_2O_3 pellets were chosen to pack into the reactor as sorbent. The adsorption and desorption of toluene on γAl_2O_3 pellets under different conditions were reviewed, and the toluene removal efficiency of adsorption en-hanced non-thermal plasma process was investigated. The result showed that the decomposition of toluene took place in the surface of γAl_2O_3 pellets; in the appropriate concentration range, the toluene removal efficiency was positive proportional to amount of toluene that adsorbed on γAl_2O_3 pellets; compared with the single non-thermal plasma technology, the packed γAl_2O_3 pellets resulted in greater enhancement of toluene removal efficiency and energy effi-ciency and a better inhibition for O_3 formation in the gas exhaust.