焦炉煤气中氨含量检测方法的研究  

Research on determination method of ammoniac content in coke oven gas

作　　者：秦云 段一凡 余雷 雷金晶 Qin Yun;Duan Yifan;Yu Lei;Lei Jinjing(Wuhan Pingmei WISCO United Coking Co.,Ltd.,Wuhan Hubei 430080,China)

机构地区：[1]武汉平煤武钢联合焦化有限责任公司,湖北武汉430080

出　　处：《煤化工》2024年第4期42-44,共3页Coal Chemical Industry

摘　　要：在钢铁联合企业中,准确分析、控制焦炉煤气中的氨含量,可有效控制其燃烧后排放尾气中的氮氧化物含量。焦炉煤气中氨含量的检测有中和滴定法和纳氏试剂分光光度法2种方法,针对采用HPF法脱硫后的焦炉煤气,进行了两种氨含量检测方法的对比研究,发现中和滴定法由于煤气显酸性,检测结果不稳定;而纳氏试剂分光光度法不受焦炉煤气酸性影响,更适合HPF法脱硫后净化煤气中氨含量的检测。The accurate analysis and control of ammonia content in coke oven gas could effectively control the nitrogen oxides in the exhaust gas after the combustion in iron and steel complex enterprises.There were two methods for the determination of ammonia content in coke oven gas:neutralization titration and Nesser's reagent spectrophotometry.The comparison of two methods for the determination of ammonia content in coke oven gas after the desulfurization by the HPF method was carried out.And it was found that neutralization titration was unstable because of the acidity of coke oven gas.However,Nesser's reagent spectrophotometry was not affected by the acidity of coke oven gas,which was much more suitable for the ammonia content detection in purified coke oven gas after the HPF gas desulfurization.

关 键 词：焦炉煤气 氨含量检测 中和滴定法 纳氏试剂分光光度法 标准曲线 

分 类 号：TQ522.61[化学工程—煤化学工程]