丙烯腈装置吸收塔尾气处理技术  

Tail gas treatment technology of acrylonitrile plant′s absorption tower

作　　者：胡海峰[1] 张元昌[2] 薛永鸿[2] 刘宗峰 罗建军[1] 李锐刚 HU Hai-feng;ZHANG Yuan-chang;XUE Yong-hong;LIU Zong-feng;LUO Jian-jun;LI Rui-gang(Petrochemical Plant of Lanzhou Petrochemical Company,PetroChina,Lanzhou 730060,China;Fertilizer Plant of Lanzhou Petrochemical Company,PetroChina,Lanzhou 730060,China)

机构地区：[1]中国石油兰州石化公司石油化工厂,甘肃兰州730060 [2]中国石油兰州石化公司化肥厂,甘肃兰州730060

出　　处：《石化技术与应用》2021年第1期54-56,共3页Petrochemical Technology & Application

摘　　要：对中国石油兰州石化公司丙烯腈装置吸收塔尾气处理系统的工艺条件进行了优化,并考察了吸收塔尾气处理系统改造后尾气净化效果。结果表明:丙烯腈装置吸收塔尾气处理系统在催化氧化反应器入、出口温度分别为250~350,480~620℃,氨气加入量为10~15 kg/h,风机空气流量为2600~4000 m^3/h的优化工艺条件下,净化尾气中非甲烷总烃、氮氧化物、丙烯腈和氢氰酸质量分数较改造前明显降低,符合GB 31571—2015规定要求。The process conditions of acrylonitrile absorption tower′s tail gas treatment system of Lanzhou Petrochemical Company,PetroChina,were optimized and the optimization effects on tail gas purification after absorption tower tail gas treatment system revamp were investigated.The results showed that under the optimal conditions of catalytic oxidation reactor′s inlet/outlet temperatures at 250-350 and 480-620℃,the amount of ammonia around 10-15 kg/h and the fan air flow rate of 2600-4000 m^3/h,the mass concentration of non-methane hydrocarbon,nitrogen oxides,acrylonitrile and hydrocyanic acidcentral in purified tail gas had been obviously decreased and could meet the requirements of GB 31571—2015.

关 键 词：丙烯腈 吸收塔 尾气 催化氧化 选择性催化氧化 工艺 

分 类 号：X511[环境科学与工程—环境工程]