摘要
顺丁橡胶尾气排放中主要污染物是正己烷,选择性催化氧化法是处理正己烷的主要技术。以聚乙二醇为助剂,制备Pt/Al_2O_3催化剂,利用侧线测试其催化性能,采用CO化学吸附与透射电子显微镜对催化剂进行表征。侧线测试结果表明,催化剂活性优于进口同类催化剂,250℃时,正己烷被完全氧化;CO化学吸附结果表明,Pt/Al_2O_3催化剂中贵金属分散度为75.9%,进口催化剂只有58.7%;TEM表明,Pt/Al_2O_3催化剂上金属分布更均匀。Pt/Al_2O_3催化剂应用于顺丁橡胶尾气处理,催化活性稳定。
Selective catalytic oxidation was the main technology to process n-hexane which was primary pollutant of exhaust emission in polybutadiene rubber production.Pt/Al_2O_3 with additive of polyethylene glycol was synthesized,evaluated in industrial sidetrack test,and characterized with CO chemisorption and transmission electron microscopy( TEM).The result of industrial sidetrack test showed that the activity of Pt/Al_2O_3 researched in this paper was better than imported similar catalyst,and n-hexane could be fully oxidized at 250 ℃.CO chemisorption showed that Pt dispersion was 75.9% on the Pt/Al_2O_3 researched,for imported similar catalyst,only 58.7%.Pt particles were uniformly distributed on the surface of Al_2O_3 from TEM.Furthermore,stability was good when catalyst was applied in removing exhaust emission from practical polybutadiene rubber project.
出处
《工业催化》
CAS
2017年第12期49-51,共3页
Industrial Catalysis
