ABS废气催化氧化处理技术研究及应用进展  

Research and Application Progress of Catalytic Oxidation Technology for ABS Exhaust Gas Treatment

作　　者：郑清娟 李寒露 Zheng Qingjuan;Li Hanlu(Shanghai Donghua Environmental Engineering Co.,Ltd.,Shanghai,200120)

机构地区：[1]上海东化环境工程有限公司,上海200120

出　　处：《当代化工研究》2024年第21期5-7,共3页Modern Chemical Research

摘　　要：ABS废气热值低,含有对人体及环境危害极大的丙烯腈、苯乙烯等污染物,丙烯腈排放限值0.5 mg/Nm^(3),处理难度大。以此研究了一种CO+TO+SCR相结合的新技术处理ABS废气,该技术采用天然气补热。结果表明,相比传统的CO+SCR技术,新技术具有明显优势,能耗费用低、丙烯腈去除率更高、可以同步处理ABS废液、碳排放低。某炼化企业20万吨/年高性能ABS树脂废气处理系统采用CO+TO+SCR技术,净化烟气中污染物均满足排放限值要求,实测丙烯腈含量低于检测下限,非甲烷总烃去除率高达99%。较之传统的CO+SCR、CO+TO+SCR运行成本降低49%,二氧化碳排放量减少73%。ABS exhaust gas has low calorific value and contains pollutants such as acrylonitrile and styrene which are very harmful to human body and environment.Acrylonitrile emission limit of 0.5 mg/Nm^(3) is difficult to treat.A new technology combining CO+TO+SCR was studied to treat ABS exhaust gas,which utilizes natural gas to supplement heat.The results show that compared with the traditional CO+SCR technology,the new technology has obvious advantages,low energy costs,higher acrylonitrile removal rate,ABS waste liquid can be treated synchronously,and low carbon emission.The 200000 t/year high-performance ABS plant exhaust gas treatment system of a refining enterprise adopts CO+TO+SCR technology,the pollutants in the purified flue gas meet the requirements of the emission limits,the measured acrylonitrile content is lower than the lower limit of detection,and the removal rate of NMHC is up to 99%.Compared with the traditional CO+SCR,the operating cost of CO+TO+SCR is reduced by 49%,and the carbon dioxide emission is reduced by 73%.

关 键 词：ABS废气处理 丙烯腈 热氧化 催化氧化 碳排放 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]