申请人:SISKIN Michael
公开号:US20130243677A1
公开(公告)日:2013-09-19
A process for the selective separation of hydrogen sulfide from gas mixtures containing carbon dioxide as well as other acidic gases uses severely sterically hindered amino alcohol absorbents based on amino alcohols and ethers containing secondary nitrogen atoms hindered by an alpha tertiary carbon atom. Preferred absorbents include 2-(N-methylamino)-2-methylpropan-1-ol, (2-(N-ethylamino))-2-methylpropan-1-ol, (2-(N-isopropylamino)-2-methylpropan-1-ol, SBAE (2-(N-sec-butylamino)-2-methylpropan-1-ol) and (2-(N-t-butylamino)-2-methylpropan-1-ol.
一种用于从含有二氧化碳以及其他酸性气体的气体混合物中选择性分离硫化氢的工艺,使用基于氨基醇和醚的高度立体位阻的氨基醇吸收剂,其中含有由α-三级碳原子阻碍的二级氮原子。首选吸收剂包括2-(N-甲基氨基)-2-甲基丙醇,2-(N-乙基氨基)-2-甲基丙醇,2-(N-异丙基氨基)-2-甲基丙醇,SBAE(2-(N-仲丁基氨基)-2-甲基丙醇)和2-(N-叔丁基氨基)-2-甲基丙醇。