天然气脱除硫化氢的研究  

Study on removal of hydrogen sulfide from natural gas

作　　者：谭更彬 王志泉[2] 吴钟旺 TAN Geng-bin;WANG Zhi-quan;WU Zhong-wang(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China;Shandong Chemical Research Institute,Jinan 250014,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061 [2]山东省化工研究院,山东济南250014

出　　处：《应用化工》2020年第12期3108-3110,3114,共4页Applied Chemical Industry

基　　金：山东省自然科学基金资助项目(ZR2019MEE030)。

摘　　要：用甲基二乙醇胺(MDEA)脱除天然气中的硫化氢,研究反应温度与MDEA浓度对脱硫效果的影响。甲基二乙醇胺最优工作温度为15~30℃,最佳浓度范围为40%~50%,原料气空速范围为1.5~3.5 h^-1,脱硫剂空速范围为0.55~1.2 h^-1。与二乙醇胺(DEA)对比,在吸收温度20℃下,MDEA与DEA溶液浓度45%,DEA第180 h时硫含量>0.2 mg/L,超过二类气标准,MDEA在第276 h时硫含量>0.2 mg/L。10 mL硫含量大于二类气要求的时间增加53%,证明甲基二乙醇胺较二乙醇胺脱硫效果大幅增加,为采油厂工艺迭代提供了数据。Use methyldiethanolamine(MDEA)to remove hydrogen sulfide from natural gas,and study the effect of reaction temperature and MDEA concentration on the desulfurization effect.The optimal working temperature of methyldiethanolamine is 15~30℃,the optimal concentration range is 40%~50%,the space velocity of raw gas is 1.5~3.5 h^-1,and the space velocity of desulfurizer is 0.55~1.2 h^-1。Compared with diethanolamine(DEA),the concentration of MDEA and DEA solution is 45%at the absorption temperature of 20℃,and the sulfur content at the 180 th h of DEA is greater than 0.2 mg/L,exceeding the Class II gas standard,the sulfur content at the 276 th hour of MDEA is greater than 0.2 mg/L。The time required for sulfur content greater than Class II gas has increased by 53%,it proves that the desulfurization effect of MDEA is greatly increased compared with DEA,which provides data for the process iteration of oil production plants.

关 键 词：硫化氢 脱除 甲基二乙醇胺 工作温度 

分 类 号：TQ110.2[化学工程—无机化工] TE644[石油与天然气工程—油气加工工程]