Biomass Valorization to Produce Porous Carbons: Applications in CO2 Capture and Biogas Upgrading to Biomethane—A Mini-Review

Porous carbon materials, derived from biomass wastes and/or as by-products, are considered versatile, economical and environmentally sustainable. Recently, their high adsorption capacity has led to an increased interest in several environmental applications related separation/purification both liquid- gas-phases. Specifically, use dioxide (CO 2 ) capture/sequestration been a hot topic the framework of gas applications. Cost effective porous carbons with enhanced textural properties CO uptakes present themselves attractive alternative adsorbents potential be used capture/separation, apart zeolites, commercial activated metal-organic frameworks (MOFs). The renewable sustainable character precursor these bioadsorbents must highlighted context circular-economy emergent energy market reach EU climate goals. This mini-review summarizes current understandings discussions about development bio-wastes, focusing application capture upgrade biogas biomethane by adsorption-based processes. Biogas is composed 55–65 v/v% methane (CH 4 mainly 35–45 . upgraded bio-CH (97%v/v) through process yields after proper conditioning quality replaces natural fossil source. impact production further biomass-derived employed process.