DDS脱硫技术在焦炉煤气脱硫中的应用  

Application of DDS desulfurization technology in COG purification

作　　者：徐兴福 曹志祥 杨承 Xu Xingfu;Cao Zhixiang;Yang Cheng(Fuel Supply Plant of Nanjing Iron&Steel Co.,Ltd.,Nanjing 210035,China;School of Chemistry,Chemistry Engineering and Life Sciences,Wuhan University ofTecanology,Wuhan 430070,China;School of Chemistry,Inner Mongolia University of Tecanology,Hohhot 010051,China)

机构地区：[1]南京钢铁联合有限公司燃料供应厂,南京210035 [2]武汉理工大学化学化工与生命科学学院,武汉430070 [3]内蒙古工业大学化工学院,呼和浩特010051

出　　处：《燃料与化工》2021年第4期46-48,共3页Fuel & Chemical Processes

摘　　要：DDS脱硫技术是一种湿法生化脱硫技术,用含DDS催化剂和亲硫好氧菌的碱性水溶液吸收焦炉煤气中的H2S和有机硫,然后在DDS催化剂和亲硫好氧菌的共同作用下,用空气氧化再生,将H2S和有机硫转化成单质硫,再生后的脱硫液循环使用。分别测定DDS脱硫技术和PDS脱硫技术对焦炉煤气中的H2S、CS2、COS、硫醇和噻吩的脱除率,结果表明,DDS脱硫技术脱除H2S和有机硫的性能优于PDS脱硫技术。The DDS desulfurization technology refers to a wet desulfurization process in which H2S and organic sulfur in COG are absorbed by alkaline solution containing DDS catalyst and sulphophilic aerobic bacteria,and then regenerated by air oxidation with the DDS and the bacteria and converted to element sulfur. The regenerated desulfurization liquid will be recycled. The efficiencies of removal of H2S,CS2,COS,mercaptan and thiophene out of COG are determined by DDS and PDS process respectively. The results show that the performance of DDS process is superior to that of the PDS in H2S and organic sulfur removal.

关 键 词：焦炉煤气 DDS脱硫技术 PDS脱硫技术 

分 类 号：X784[环境科学与工程—环境工程]