焦化HPF法脱硫废渣综合利用研究  

Comprehensive Utilization of HPF Desulfurization Slag

作　　者：陈惜明[1] 胡丽娟 何正端 陈宇璇 Chen Ximing;Hu Lijuan;He Zhenduan;Chen Yuxuan(Chemistry and Material Science College,Huaibei Normal University,Huaibei 235000,China)

机构地区：[1]淮北师范大学化学与材料科学学院

出　　处：《广东化工》2019年第20期9-11,共3页Guangdong Chemical Industry

基　　金：安徽省大学生创新创业项目(201810373002)

摘　　要：HPF法脱硫工艺具有良好的脱硫、脱氰效果,广泛应用于国内焦化厂焦炉煤气脱硫,但从脱硫塔得到的硫渣用途有限,并且外排的脱硫液难以处理。本文提出了一种从脱硫塔含硫泡沫提取高纯度硫磺和硫氰酸盐和硫代硫酸盐的方法。试验结果表明,硫磺纯度达到99.94%,硫代硫酸钠和硫氰酸铵纯度分别为94.3%和96.2%,不仅有效减少了废水废渣的排放,而且提高了资源的利用率,具有良好的社会效益和经济效益。HPF desulfurization process has good desulfurization and cyanide removal effect, which is widely used in the desulfurization of coke oven gas in domestic coking plant. This paper presents a method to extract high purity sulfur and thiocyanate from sulfur foam in desulfurization tower. The results show that the purity of sulfur reaches 99.94 %, the purity of sodium thiosulfate and ammonium thiocyanate is 94.3 % and 96.2 %, respectively, waste water and waste slag had been significant reduced, which has a broad application prospect.

关 键 词：脱硫废液 HPF 硫氰酸铵 硫代硫酸钠 硫 

分 类 号：X784[环境科学与工程—环境工程]