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A series of phenolic ILs containing different cations were synthesized and investigated for the absorption of H2S and CO2 in this work. It is interestingly found that the solubilities of H2S in these phenolic ILs are comparably high because of the strong interaction of basic phenolate anion with acidic H2S, while the solubilities of CO2 decrease significantly with the increase of cationic hydrogen-bond...
Developing absorbents with both high absorption capacity of H2S and large selectivity of H2S/CO2 is very important for natural gas sweetening process. To this end, a class of novel hydrophobic protic ionic liquids (ILs) containing free tertiary amine group as functional site for the absorption of H2S were designed in this work. They were facilely synthesized through a simple neutralization‐metathesis...
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