催化水解法低温脱除煤气中羰基硫的研究  

Carbonyl sulfide gas removal by catalytic hydrolysis in low temperature

作　　者：王冠[1] 孙同华[1] 张宏波[1] 贾金平[1] 李侃[1] 姚尚安[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《现代化工》2014年第1期60-63,共4页Modern Chemical Industry

基　　金："863"重点课题(2009AA062603)

摘　　要：采用等体积浸渍法制备了负载钼酸铵、碳酸钾、氢氧化钠3种活性组分的氧化铝基水解催化剂,考察了氧含量、温度、湿度对羰基硫水解转化率的影响.实验结果表明,随着氧含量的增加,催化剂反应活性降低;随着温度的升高,催化剂反应活性提高.水蒸气在低含量时可促进水解反应进行,但含量过高则会造成催化剂反应活性的下降.该催化剂在80～ 100℃,湿度25％条件下具有优异的水解活性和稳定性.The alumina-based catalyst is prepared with ammonium molybdate, potassium carbonate and sodium hydroxide as active ingredient by using equivalent-volume impregnation. The effects of oxygen content, temperature and humidity on the hydrolysis conversion of carbonyl sulfides are studied. The results show that the activity of catalyst will increase by decreasing the oxygen content and increasing temperature. Low content of water can promote the hydrolysis reaction, but high content of water will result in a decline in catalyst activity. This kind of catalyst performs excellent hydrolytic activity and stability at 80 - 100℃ with 25% of humidity.

关 键 词：羰基硫 低温 催化水解 活性氧化铝 

分 类 号：X701.3[环境科学与工程—环境工程] TQ426.94[化学工程]