文献类型：期刊文献

英文题名：Absorption Selectivities of Solvents for Organosulfurs in High Sour Natural Gas

作者：Zhang, J. H.[1,2];Shen, B. X.[1];Liu, J. C.[1];Sun, H.[1];Hu, W. J.[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]SINOPEC, Beijing, Peoples R China

年份：2014

卷号：36

期号：8

起止页码：822

外文期刊名：ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

收录：;EI(收录号：20141017415778);WOS:【SCI-EXPANDED(收录号:WOS:000331601300003)】；

语种：英文

外文关键词：selectivity; high sour natural gas; organosulfur; absorption; mercaptan

摘要：In order to develop a solvent with satisfied organosulfur removal performance for high sour natural gas, the absorption process using UDS and MDEA as solvents was investigated and the absorption model was established to evaluate the selectivities of the two solvents for organosulfurs. The results indicate that both of the solvents, UDS and MDEA, have excellent absorption performance for H2S and CO2. The solvent, UDS, shows evident advantages when adsorbing high content COS and mercaptans. From the viewpoints of the solubility and the mass transfer performance, COS is the most easily absorbed. The methyl mercaptan and ethyl mercaptan come after. The isopropyl mercaptan and n-propyl mercaptan are hard to be absorbed. Compared with MDEA, the solvent UDS shows lower Henry constants and greater mass transfer factors for the organosulfurs; therefore, it has higher solubility and better mass transfer performance for the organosulfurs.