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US4405581A Process for the selective removal of hydrogen sulfide from gaseous mixtures with severely sterically hindered secondary amino compounds 失效
从具有严格位阻的仲氨基化合物的气态混合物中选择性除去硫化氢的方法

Process for the selective removal of hydrogen sulfide from gaseous
mixtures with severely sterically hindered secondary amino compounds
摘要:
The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary amino compound having a cumulative .sup.- E.sub.s value (Taft's steric hindrance constant) greater than about 1.75 whereby H.sub.2 S is selectively absorbed from the mixture.
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