Highly efficient and selective formation of hydrogencarbonate in CO2 absorption process using piperidine and piperazine derivatives

MS Shin, YK Park, SC Nam, KJ Hwang

Index: Shin, Man Sub; Park, Yoon Kook; Nam, Sung Chan; Hwang, Kwang-Jin Chemistry Letters, 2012 , vol. 41, # 2 p. 142 - 144

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Citation Number: 4

Abstract

This investigation demonstrated that bicarbonate ions were selectively formed over carbamate in a CO 2 absorption process using piperidine and piperazine derivatives based on 13 C NMR. Piperidines with methyl or hydroxymethyl substituent at 2 position (PiP-Me and PiP-MeOH) and 2, 5-dimethylpiperazine (DM-PiZ) generated the bicarbonate ions as main adducts in reaction with CO 2. The absorptions of CO 2 by those aqueous amines ( ...