高炉煤气精脱硫工艺选择及设备优化  

Process Selection and Equipment Optimization of Blast Furnace Gas Fine Desulfurization

作　　者：韩晓萌 杨泽萌 曹勇杰[1,2] 李鹏 HAN Xiaomeng;YANG Zemeng;CAO Yongjie;LI Peng(Thermal Energy Department of Beijing Shougang International Engineering Technology Co.,Ltd.;Beijing Metallurgical 3D Simulation Design Engineering Technology Research Center,Beijing 100043,China)

机构地区：[1]北京首钢国际工程技术有限公司热能事业部 [2]北京市冶金三维仿真设计工程技术研究中心,北京100043

出　　处：《冶金动力》2024年第4期89-94,共6页Metallurgical Power

摘　　要：基于国内北方某高炉新增脱硫设施工程建设实例,对比分析微晶吸附、水解催化-干法脱硫以及水解催化-湿法脱硫三种工艺的技术特点。结合项目施工场地条件、建设及运行费用等因素,综合考虑选择水解催化-湿法脱硫工艺对现有煤气系统进行改造。针对煤气脱硫塔易偏流的现象,设计了三种不同煤气入塔管道连接方案,并采用流体仿真软件对脱硫塔内流场进行模拟分析,结果表明采用切向入口连接方式,可使塔体内气流分布均匀,增加煤气与吸收液接触时间,提高脱硫效率。Based on an example of the construction of new desulfurization facilities for a blast furnace in the northern part of China,the technical characteristics of three processes of microcrystalline adsorption,hydrolysis catalyzed-dry desulfurization and hydrolysis catalyzed-wet desulfurization are compared and analyzed.Considering the project's construc⁃tion site conditions,construction and operation costs,and other factors,comprehensive consid⁃eration was given to selecting the hydrolysis catalytic-wet desulfurization process to renovate the existing gas system.In view of the phenomenon that the gas desulfurization tower is prone to bias flow,three different gas inlet pipe connection schemes are designed,and the flow field in the desulfurization tower is simulated and analyzed by using the fluid simula⁃tion software.The results show that using the tangential inlet connection can make the gas flow distribution in the tower uniform,increase the contact time between the gas and the ab⁃sorbing liquid,and improve the desulfurization efficiency.

关 键 词：水解催化-湿法脱硫 偏流 管道设计 流场 

分 类 号：X701.3[环境科学与工程—环境工程]