Abdallah et al. (2023): Laboratory aging of a dual function material (DFM) washcoated monolith for varying ambient direct air capture of CO2 and in situ catalytic conversion to CH4

Monica Abdallah, Yuanchunyu (Iris) Lin, Robert Farrauto IN: Applied Catalysis B: Environmental, 339, 123105, https://doi.org/10.1016/j.apcatb.2023.123105

A DFM has been designed for direct air capture of CO₂ and in situ catalytic methanation for sustainable natural gas production. It is composed of 1% Ru, 10% “Na₂O”/γ-Al₂O₃//ceramic monolith, the latter with high open frontal area to reduce pressure drop when processing real air. Extended laboratory aging was conducted using simulated ambient capture conditions varying in temperature and humidity for over 100 cycles (450+ hours on stream). The continuous test protocol was designed to simulate some representative ambient conditions expected during advanced pilot plant testing. The capture step was followed by catalytic hydrogenation of CO₂ to methane during a temperature swing to 300°C.

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