Questioning the catalytic effect of Ni nanoparticles on CO2 hydration and the very need of such catalysis for CO2 capture by mineralization from aqueous solution

被引：7

作者：

Ramsden, Jeremy J. ^{[1
]}

Sokolov, Ilya J. ^{[2
]}

Malik, Danish J. ^{[2
]}

机构：

[1] Inst Adv Study, Collegium Basilea, Basel, Switzerland

[2] Loughborough Univ Technol, Chem Engn Dept, Loughborough LE11 3TU, Leics, England

来源：

CHEMICAL ENGINEERING SCIENCE | 2018年 / 175卷

关键词：

Absorption; Carbon capture; Carbonation hydration reaction; Mineralization; CO2; sequestration; ENZYME CARBONIC-ANHYDRASE; REVERSIBLE HYDRATION; DIOXIDE; SEQUESTRATION; KINETICS; STORAGE; IONS;

D O I：

10.1016/j.ces.2017.09.042

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Recent publications claimed a significant catalytic effect of nickel nanoparticles on the hydration of CO2 to carbonic acid. Others have claimed that such catalysis can significantly accelerate the overall process of CO2 capture by mineralization to CaCO3 from aqueous solution. Having repeated the experiments as closely as possible, we observed no catalytic effect of Ni nanoparticles. Numerical modelling revealed that hydration is not the slowest reaction in the chain ending with mineralization; hence its catalysis cannot have a significant effect on CaCO3 formation. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：162 / 167

页数：6

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