Gasification char residues management: Assessing the characteristics for adsorption application

Due to the world-wide energy crisis and economic issues, biomass has become a resource of global interest as an alternative to activated carbon (AC) produced using non-renewable feed-stock (i.e. coal-based). The production of AC from biomass has been determined to be sustainable owing to the abundance of biomass resources on Earth. Biomass gasification has significantly gained market interest and was predicted to reach a value of USD 126 billion by 2023. A critical concern for the existing commercial gasification plants is the handling of char residues, which rep-resent approximately 10% of the initial feedstock mass and are presently treated as waste. The con-version of these chars into AC that can be used for adsorption applications is a possible alternative. This review article focuses on evaluating the characteristic of the gasification char (GC) that is used for adsorption processes. The current AC production method was briefly reviewed. In addition, recent studies on adsorption using GC were explored and summarised.& COPY; 2023 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Automated summary

Due to global energy crisis and economic issues, biomass has gained global interest as an alternative to non-renewable activated carbon (AC) produced from coal. Biomass gasification has become a market focus and is predicted to reach USD 126 billion by 2023. A critical concern for gasification plants is the handling of char residues, which are currently treated as waste. This review article evaluates the characteristics of gasification char (GC) for adsorption processes and summarizes recent studies on adsorption using GC.