Abstract

Biogas is an alternative energy source that has been promoted to reduce the environmental impact of fossil fuels. Because biogas contains impurities such as CO2, H2S, volatile organic compounds, water vapor, and ammonia, the calorific value of the biogas is reduced, and direct use causes corrosion/abrasion of the combustion equipment. This review focused on the recent generation materials known as metal–organic frameworks (MOFs) used as adsorbents for biogas impurities. In general, MOFs showed high adsorption capacity for individual compounds and good selectivity in impurities mixtures. An extensive exploration of MOF was also found for CO2 capture but to a lesser extent for other biogas impurities.

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