在氧化和还原氛围下脉冲电晕法降解二硫化碳废气  

Decomposion of Carbon Disulfide by Pulse Corona Under Oxidizing and Reducing Atmosphere

作　　者：金圣[1] 黄立维[1] 李国平[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,杭州310032

出　　处：《环境科学》2013年第6期2121-2125,共5页Environmental Science

摘　　要：采用线-筒式脉冲电晕反应器对二硫化碳(CS2)模拟废气的去除效果进行了实验研究.实验以氩气为载气,考察了氧气和氢气对CS2去除效果的影响.结果表明CS2的去除率随脉冲电压升高而增大;氧气能够促进CS2的氧化分解,CS2去除率可达97%;有氧气存在时,CS2的最终氧化分解产物为CO、CO2、COS和SO2;当添加氢气时,反应产物主要为H2S和CH4.当反应器内筒表面加Ca(OH)2吸收剂时,CS2去除率有小幅度提高,同时气体产物中未检测到SO2和H2S,表明CS2的分解产物SO2和H2S气体被反应器中的Ca(OH)2吸收.The removal of CS2 by a wire-in-tube pulsed corona reactor was experimentally investigated.The effects of O2 and H2 in Ar gas on the removal of CS2 were examined.It was shown that the removal of CS2 increased with the increase of input pulse voltage.The decomposition of CS2 was improved in the presence of O2 in gas stream and the maximal removal was over 97%.The main gaseous products of CS2 decomposition with the addition of O2 in Ar gas were CO,CO2,COS and SO2,while,with the presence of H2 in Ar gas,the main products of CS2 decomposition were H2S and CH4.It was found that with the co-existence of sorbent Ca（OH）2 in the reactor,the gaseous products of CS2 decomposition（SO2 and H2S） were not detected,showing that the products were absorbed by the sorbent Ca（OH）2.It was also found that the removal of CS2 decreased when there was water vapor in gas stream.

关 键 词：二硫化碳 线-筒式 脉冲电晕 吸收剂 分解 氧化 

分 类 号：X701.3[环境科学与工程—环境工程]