Applied Catalysis2022，Vol.3078.DOI:10.1016/j.apcatb.2021.120990

Dual function materials (Ru+Na2O/Al2O3) for direct air capture of CO2 and in situ catalytic methanation: The impact of realistic ambient conditions

Jeong-Potter, Chae Abdallah, Monica Sanderson, Cory Goldman, Mark Gupta, Raghubir Farrauto, Robert
Applied Catalysis2022，Vol.3078.DOI:10.1016/j.apcatb.2021.120990
✕
  • NSTL
  • Elsevier

Dual function materials (Ru+Na2O/Al2O3) for direct air capture of CO2 and in situ catalytic methanation: The impact of realistic ambient conditions

Jeong-Potter, Chae 1Abdallah, Monica 1Sanderson, Cory 2Goldman, Mark 1Gupta, Raghubir 2Farrauto, Robert1
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作者信息

  • 1. Columbia Univ
  • 2. Susteon Inc
  • 折叠

Abstract

A dual function material (DFM) comprised of 1% Ru, 10% Na2O/gamma -Al(2)O(3)was studied for combined direct air capture (DAC) of CO2 and catalytic methanation in a temperature swing operation. In the newly proposed operation, the DFM captures CO2 (400 ppm) from air at ambient conditions. The material is then heated in H-2 to a temperature sufficient for catalytic conversion of the captured CO2 to renewable natural gas. In this study, we demonstrate high CO2 adsorption capacity and rates at ambient conditions (25 ?); the adsorbed CO2 is then successfully catalytically methanated upon heating in H-2. Adsorption was also carried out in humid conditions, more closely simulating ambient air. Adsorption and methane production were greatly improved with stable initial performance. The rate of adsorption is shown to be flowrate-dependent, which is critical for future reactor design.

Key words

Dual function material/Direct air capture/CO2 & nbsp/methanation/Ruthenium catalyst/Alkaline sorbent/Impact of humidity/DUAL FUNCTION MATERIALS/SYNTHETIC NATURAL-GAS/FLUE-GAS/CONVERSION/SORBENTS/ADSORPTION

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量24
参考文献量30
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