高活性氢氧化钙脱硫剂在焦炉烟气脱硫中的应用  

Application of high activity calcium hydroxide desulfurizer in coke oven flue gas desulfurization

作　　者：刘国伟[1] 原志勇 孙仁财[1] 杨建强 Liu Guowei;Yuan Zhiyong;Sun Rencai;Yang Jianqiang(Shougang Changzhi Steel&Iron Co.,Ltd.,Changzhi Shanxi 046000,China)

机构地区：[1]首钢长治钢铁有限公司,山西长治046000

出　　处：《煤化工》2023年第2期81-83,共3页Coal Chemical Industry

摘　　要：为提高焦炉烟气脱硫副产物综合利用水平,在首钢长治钢铁有限公司焦化厂SDS脱硫工艺中,进行了采用高活性氢氧化钙脱硫剂(ACAJ-01)替代小苏打脱硫剂连续喷吹脱硫的试运行实践。分析了用ACAJ-01脱硫剂替代小苏打脱硫剂的可行性,介绍了采用ACAJ-01脱硫剂的脱硫装置运行情况及运行指标。几个月的试用结果表明:采用ACAJ-01脱硫剂对焦炉烟气进行脱硫处理,能够满足烟气出口SO2质量浓度≤30 mg/m3的达标排放要求,钙基脱硫副产物可在企业内部进行循环利用,可降低焦炉烟气脱硫系统的环保风险和运行成本。In order to improve the comprehensive utilization of by-products of coke oven flue gas desulfurization,a trial operation was carried out in which high activity calcium hydroxide desulfurizer(ACAJ-01)was used instead of baking soda desulfurizer for continuous injection desulfurization in the SDS desulfurization process of Coking Plant of Shougang Changzhi Steel&Iron Co.,Ltd.The feasibility of using ACAJ-01 desulfurizer to replace baking soda desulfurizer was analyzed,and the operation condition and operation parameters of the desulfurization unit using ACAJ-01 desulfurizer were introduced.The experimental results of several months showed that the application of ACAJ-01 desulfurizer to the flue gas of coke oven could meet the requirement of SO2 concentration(≤30 mg/m3)at the outlet of flue gas.Calcium-based desulfurization by-products could be recycled in the enterprise,which could reduce the environmental risks and operating costs of coke oven flue gas desulfurization system.

关 键 词：焦炉烟气脱硫 SDS脱硫工艺 高活性氢氧化钙脱硫剂 脱硫副产物 脱硫效率 

分 类 号：X784[环境科学与工程—环境工程]