GLT络合铁催化剂在高副盐PDS脱硫液中的工业应用  

Application of GLT chelated iron catalyst in PDS desulfurization liquid with high content of secondary salt

作　　者：许华坤 赵云东 胡璐 Xu Huakun;Zhao Yundong;Hu Lu(Yunnan Qujing Coking Industrial Development Co.,Ltd.,Qujing 655500,China;Wuhan GLT Energy and Environmental Technology Co.,Ltd.,Wuhan 430200,China)

机构地区：[1]云南大为制焦有限公司,曲靖655500 [2]武汉国力通能源环保股份有限公司,武汉430200

出　　处：《燃料与化工》2022年第5期44-47,共4页Fuel & Chemical Processes

摘　　要：化产焦炉煤气脱硫系统原有PDS脱硫液副盐总含量在500 g/L以上,采用GLT络合铁脱硫技术进行设备改造,将GLT络合铁催化剂加入原有脱硫液体系中。工业运行效果表明,脱硫系统的脱硫效率得到显著改善,净化气中硫化氢不高于1 mg/m^(3),脱硫液副盐含量得到有效抑制,且在不外排脱硫液的情况下副盐含量总体呈下降趋势。在高副盐含量状况下,容易产生喷射器和冷却器堵塞问题,需要及时清洗疏通,加入结晶抑制剂也可有效缓解该问题的发生。The total secondary salt content of original PDS desulfurization liquid is higher than500 g/L in desulfurization system.The system is therefore upgraded by adopting GLT chelated iron desulfurization technology,i.e.the GLT chelated iron catalyst is added to the original desulfurization liquid system.The operation performance shows that the desulfurization efficiency has been significantly improved,with HS in purified gas less than 1 mg/m^(3);and the secondary salt in the desulfurization liquid has been effectively restrained,with the secondary salt on an overall declining trend in the non-discharged desulfurization liquid.In the desulfurization system with high content of secondary salt,it is prone to cause crystallization blockage in the regenerative ejector and cooler,which needs to be cleaned in time,and crystallization inhibitor can also be added to this end.

关 键 词：焦炉煤气 脱硫 高副盐PDS脱硫液 络合铁 工业应用 

分 类 号：TQ546.5[化学工程—煤化学工程]