Screening the effect of water vapour on gas adsorption performance: application to CO2 capture from flue gas in metal–organic frameworks

Nicolas Chanut, Sandrine Bourrelly, Bogdan Kuchta, Christian Serre, Jong-San Chang, Paul A. Wright, Philip L. Llewellyn

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)1543-1553
Number of pages11
JournalCHEMSUSCHEM
Volume10
Issue number7
Early online date2 Mar 2017
DOIs
Publication statusPublished - 10 Apr 2017

Keywords

  • Adsorption
  • Carbon dioxide
  • Flue gas
  • Humidity effect
  • Metal–organic framework

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