甲烷化装置脱精硫段管道放硫问题研究和解决  

Research and Solution of Sulfur Release in Desulfurization Section of Methanation Unit

作　　者：金建涛 王天元 王瑜 瞿玖 周正 彭眇 JIN Jian-tao;WANG Tian-yuan;WANG Yu;QU Jiu;ZHOU Zheng;PENG Miao(Wuhan Kelin Chemical Group Co.,Ltd.,Wuhan Hubei 430000,China)

机构地区：[1]武汉科林化工集团有限公司,湖北武汉430223

出　　处：《辽宁化工》2021年第4期540-542,共3页Liaoning Chemical Industry

摘　　要：邯郸某煤化工企业焦炉气变压吸附提氢联产LNG项目试运行阶段,甲烷化装置前的精脱硫氧化锌出口总硫数据一直超过100μg·m^(-3),在排除氧化锌质量问题后最终发现是管道内壁附着的硫化亚铁与高温氢气反应生成的硫化氢导致出口总硫数据超标。在先后使用质量分数为5%的磷酸溶液和5%的碳酸钠溶液清洗管道后彻底解决管道放硫问题,出口总硫持续小于100μg·m^(-3)。During the trial operation phase of the coke oven gas pressure swing adsorption hydrogen extraction co-production LNG project of a coal chemical enterprise in Handan, the total sulfur data of the refined desulfurization zinc oxide section before the methanation unit has always exceeded 100 μg·m^(-3). It was finally discovered that the hydrogen sulfide generated by the reaction of ferrous sulfide on the inner wall of the pipeline with high-temperature hydrogen made the export total sulfur data exceed the standard after excluding the quality reasons of zinc oxide. After cleaning the pipeline with 5% phosphoric acid solution and 5% sodium carbonate solution, the problem of sulfur release in the pipeline was completely solved, and the total sulfur at the outlet continued to be less than 100 μg·m^(-3).

关 键 词：甲烷化 硫化亚铁 氧化锌 放硫 磷酸 

分 类 号：TQ062.1[化学工程]