On the CO2 and H2O chemisorption on hydrotalcite-based adsorbents for sorption-enhanced water-gas-shift processes.

K.T. Coenen, F. Gallucci, P.D. Cobden, H.A.J. van Dijk, E.J.M. Hensen, M. van Sint Annaland

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Abstract

Thermogravimetric analysis (TGA) was used to study the adsorption phenomena of CO2 and H2O on a hydrotalcite-based adsorbent to be used for sorption-enhanced Water-Gas-Shift (SEWGS). The adsorption of CO2 and H2O and the interaction between the two can be described when considering the presence of at least three different sites (2 for CO2 and 1 for H2O) participating in the adsorption phenomena at elevated temperatures. The experiments confirm that the regeneration conditions are crucial for activating more sites for CO2 adsorption and are therefore the limiting factor for the cyclic working capacity of the adsorbent.
Original languageEnglish
Publication statusPublished - 14 Jun 2016
Event24th International Symposium on Chemical Reaction Engineering (ISCRE 24) - Minneapolis, MN, United States
Duration: 12 Jun 201615 Jun 2016
http://iscre.org/ISCRE24/

Conference

Conference24th International Symposium on Chemical Reaction Engineering (ISCRE 24)
Abbreviated titleISCRE 24
Country/TerritoryUnited States
CityMinneapolis, MN
Period12/06/1615/06/16
Internet address

Keywords

  • Cyclic working capacity, CO2 sorption kinetics, Hydrotalcite

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