Abstract
CO2 methanation reaction has attracted renewed interest since the power‐to‐gas (PtG) concept emerged as a promising alternative for CO2 emission abatement using surplus renewable electricity. Although the reaction has been reported for more than a century, improvements in the catalytic system and reactor design remain challenging. Recently, hydrotalcite (HT) materials known for their facile synthesis and high performance are extensively used as precursors for supported catalysts in a wide range of reactions, including CO2 hydrogenation to CH4. Herein, a comprehensive overview on HT‐derived catalysts applied for CO2 methanation is provided. More importantly, new reactor concepts are extensively investigated, such as honeycomb and microchannel reactors, to overcome issues related to the high exothermic nature of the reaction. The latest achievements with respect to structured reactors are also comprehensively reviewed and thoroughly discussed.
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