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Thermodynamic Properties of CO 2 Conversion by Sodium Borohydride
Author(s) -
Zhao Yi,
Zhang Zili
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400292
Subject(s) - sodium borohydride , chemistry , flue gas , formate , inorganic chemistry , sodium formate , borohydride , sodium , atmospheric pressure , mass spectrometry , organic chemistry , catalysis , chromatography , geology , oceanography
In order to verify the resource utilization of CO 2 from coal‐fired flue gas, the conversion of CO 2 by sodium borohydride was investigated under atmospheric pressure and moderate temperature. According to the product analysis results of mass spectrometry and ion chromatography, combined with the comparison of electrode potentials, the mechanism of CO 2 reaction with sodium borohydride was deduced, in which formate was confirmed as the main reduction product, and the intermediates of [BH i (HCO 2 )(OH) 3– i ] −1 were considered as the essential mediums for the formation of formate. The feasibility of this conversion was studied thermodynamically.