Volume 10, Issue 7 p. 1543-1553
Full Paper

Screening the Effect of Water Vapour on Gas Adsorption Performance: Application to CO2 Capture from Flue Gas in Metal–Organic Frameworks

Nicolas Chanut

Nicolas Chanut

Aix-Marseille University, CNRS, MADIREL (UMR 7246), Centre de St Jérôme, 13013 Marseille, France

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Dr. Sandrine Bourrelly

Corresponding Author

Dr. Sandrine Bourrelly

Aix-Marseille University, CNRS, MADIREL (UMR 7246), Centre de St Jérôme, 13013 Marseille, France

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Prof. Bogdan Kuchta

Prof. Bogdan Kuchta

Aix-Marseille University, CNRS, MADIREL (UMR 7246), Centre de St Jérôme, 13013 Marseille, France

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Dr. Christian Serre

Dr. Christian Serre

Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, Ecole Supérieure de Physique et de Chimie Industrielles de Paris, FRE CNRS 2000, PSL Research University, 75005 Paris, France

Institut Lavoisier de Versailles, UMR 8180 CNRS – Université de Versailles St. Quentin, 45 avenue des États-Unis, 78035 Versailles cedex, France

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Dr. Jong-San Chang

Dr. Jong-San Chang

Departement of Chemistry, Sungkyunkwan University, Suwon, 440-476 Korea

Research Center for Nanocatalysts, Korea, Research Institute of Chemical Technology (KRICT), Daejeon, 305-600 Korea

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Prof. Paul A. Wright

Prof. Paul A. Wright

Univ St Andrews, Eastchem Sch Chem, Purdie Bldg, St Andrews, KY169ST Fife, Scotland

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Dr. Philip L. Llewellyn

Corresponding Author

Dr. Philip L. Llewellyn

Aix-Marseille University, CNRS, MADIREL (UMR 7246), Centre de St Jérôme, 13013 Marseille, France

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First published: 02 March 2017
Citations: 91

Graphical Abstract

Capturing MOFs: A simple screening strategy is proposed to follow the CO2 adsorption behaviour of 45 metal– organic frameworks (MOFs) that are pre-equilibrated with varying amounts of H2O. Different behaviours are observed and discussed, ranging from large decreases in CO2 uptake with degree of wetting to a negligible influence of water. Materials showing promising CO2 uptake are highlighted as of interest for further studies.

Abstract

A simple laboratory-scale protocol that enables the evaluation of the effect of adsorbed water on CO2 uptake is proposed. 45 metal–organic frameworks (MOFs) were compared against reference zeolites and active carbons. It is possible to classify materials with different trends in CO2 uptake with varying amounts of pre-adsorbed water, including cases in which an increase in CO2 uptake is observed for samples with a given amount of pre-adsorbed water. Comparing loss in CO2 uptake between “wet” and “dry” samples with the Henry constant calculated from the water adsorption isotherm results in a semi-logarithmic trend for the majority of samples allowing predictions to be made. Outliers from this trend may be of particular interest and an explanation for the behaviour for each of the outliers is proposed. This thus leads to propositions for designing or choosing MOFs for CO2 capture in applications where humidity is present.