三聚氯氰含氰尾气治理工艺研究
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摘要
为解决三聚氯氰生产过程中尾气含氰污染物问题,提出采用甲烷燃烧、氨催化、水吸收3步处理技术。分析结果表明,三聚氯氰结晶尾气中的氯化氰和氯气首先与甲烷发生氧化还原反应生成CO_2、NO_x、H_2O、HCl,再进一步与氨气混合后经脱盐、氨催化反应生成CO_2、N_2,尾气中微量活性炭经水吸收去除,最终实现了三聚氯氰尾气的无害化排放。
In order to solve the problem of cyanides contamination in the tail gas of cyanuric chloride production,a three-step treatment technology including methane combustion,ammonia catalysis and water absorption is proposed.Analysis results indicate that cyanogen chloride and chlorine gas in tail gas from cyanuric chloride crystallization proceed firstly REDOX reaction with methane to generate CO_2,NO_x,H_2O and HCl,which further mixes with ammonia and then performs desalination and ammonia catalytic reaction to generate CO_2 and N_2.Traces of activated carbon remaining in tail gas can be removed by water absorption.The harmless emission is realized finally.
In order to solve the problem of cyanides contamination in the tail gas of cyanuric chloride production,a three-step treatment technology including methane combustion,ammonia catalysis and water absorption is proposed.Analysis results indicate that cyanogen chloride and chlorine gas in tail gas from cyanuric chloride crystallization proceed firstly REDOX reaction with methane to generate CO_2,NO_x,H_2O and HCl,which further mixes with ammonia and then performs desalination and ammonia catalytic reaction to generate CO_2 and N_2.Traces of activated carbon remaining in tail gas can be removed by water absorption.The harmless emission is realized finally.
引文
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[2]陈静波,张玉顺,刘宇,等.灭蝇胺的合成与应用研究[J].云南大学学报:自然科学版,2008,30(4):392-395.
[3]邢兆伍,毕立国,王红星,等.草净津合成工艺[J].农药,2006,45(1):26-28.
[4]于锦亮,彭洁,杨宗义,等.一种双三嗪氨基二苯乙烯型荧光增白剂合成研究[J].信息记录材料,2013,14(4):23-27.
[5]张光华,徐海龙,郭锦鸽,等.具有荧光增白作用的新型返黄抑制剂的合成及性能[J].化工学报,2012,63(10):3358-3364.
[6]孙海洋,张健飞,巩继贤,等.复合型耐酸增白剂的合成与应用[J].印染,2013,(22):15-18.
[7]孙保国,徐立新.双三嗪氨基二苯乙烯类荧光增白剂[J].纸和造纸,2003,(5):42-44.
[8]蒋之铭,朱平,任学宏,等.基于三聚氯氰的反应型抗菌剂及其抗菌整理研究[J].现代化工,2017,37(6):107-111.
[9]李果,胡新利,俞春雷,等.阻燃剂三嗪三苯基次膦酸乙酯的合成及应用[J].塑料科技,2015,43(2):90-94.
[10]杨珂珂,胡新利,王彦林.阻燃剂三嗪三苯基次膦酸异丙酯的合成与应用研究[J].塑料工业,2015,43(2):15-18.
[11]耿世义.应用塑料尾气烟囱效果显著[J].辽宁化工,1983,(3):43-44.
[12]任晖.三聚氯氰生产尾气的处理[J].辽宁化工,2009,38(6):407-408.