基于臭氧前驱物钢铁厂煤相关工艺的排放特征Emission Characteristics of Ozone Precursors from Steel Plants on Coal-related Processes
高雪莹,闫昱程,李婕,郭利利,何秋生,李宏艳,王新明
摘要(Abstract)：
通过气袋采样-GC-MS/FID分析,研究了某钢铁厂煤相关工艺环节(出焦、烧结、球团和炼铁高炉) VOCs的排放特征,结果表明:各工序TVOCs浓度水平:球团(12 531. 81±6 318. 20μg/m~3)>烧结(5 882. 49±2 850. 80μg/m~3)>炼铁高炉(2 193. 43±1 030. 18μg/m~3)>出焦(789. 66±175. 93μg/m~3)。苯乙烯、1-丁烯、正己烷为出焦烟气的主要化合物; 1-丁烯在烧结和球团工艺过程烟气中最为富集;炼铁高炉的烟气排放主要以苯乙烯和1-丁烯为主。出焦、烧结及球团烟气中B/T(1. 35～3. 12)与煤燃烧特征一致,炼铁高炉烟气B/T为0. 47。烯烃均为各工艺过程O3生成的最敏感组分(贡献高达51. 23%～95. 14%),其中1-丁烯为最敏感单体化合物。
关键词(KeyWords)： 钢铁厂;挥发性有机物;源成分谱;臭氧生成潜势
基金项目(Foundation): 国家自然基金(41172316);; 海外及港澳学者合作研究基金(41728008);; 山西省研究生优秀创新项目(2019SY498)
作者(Author): 高雪莹,闫昱程,李婕,郭利利,何秋生,李宏艳,王新明
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