CO2 Adsorption On Sustainable Biomass Derived Activated Carbon: A Mini-Review
Energy utilization for power generation and industrial purposes is a key to the development of any nation. However, over dependence on fossil fuels as a major source of energy is a cause of concern due to its high emission of greenhouse gases. Carbon dioxides (CO2) emission is believed to be the greatest contributor to global warming. The best way to mitigate the release of CO2 into the atmosphere is to capture it from the point source. Amine solution that is used commercially to absorb CO2 from point source is energy intensive, easily degraded, corrosive and difficult to regenerate. Adsorption is considered to be an alternative technology due to the ease of adsorbent regeneration, high thermal stability, low energy consumption and cost. Activated carbons prepared from different biomass materials were reported to have good adsorption capacity. The activated carbons (ACs) were prepared via carbonization and activation. The synthesis and modification methods determine the quality and properties of the ACs produced. The effectiveness of the adsorbent is dependent on the textural characteristics, surface chemistry of the adsorbent and the adsorption/regeneration technique used. This review highlights the potentials and adsorption capacity of modified and un-modified activated carbon derived from biomass materials for CO2 capture.
Keywords - Activated Carbon; CO2 Adsorption; Modification; Review; Sustainable Biomass.