Towards sustainable biomass gasification: Evolution of bagasse char characteristics throughout gasification

Hardwood Branch Char Gasification with CO2: Characterization of Reactivity and Proposal of a Semiempirical Kinetic Model

“…14 However, it has not been elucidated which of the following influencing factors are the most important in the CO 2 gasification of biomass char: alkali and alkaline earth metals (AAEMs) in the ash, reaction temperature, and char structure. 15,16 In addition, the compositions of the inorganic components of biomass, which are dependent on the type of biomass (e.g., fruit-tree PBs, park tree PBs, or timber waste [TW]) and their biological classifications (e.g., tree species), have yet to be elucidated, and their influences on the reaction properties remain unknown. In this context, the reaction rate for the gasification of hardwood char has often been found to increase rapidly in the latter half of the reaction when the inorganic components have become concentrated; hence, these components have been suggested to accelerate the reaction.…”

“…In terms of the pore structure of the char, previous studies have shown that the Brunauer–Emmett–Teller (BET) specific surface area is positively correlated with the reaction rate constant and that the relationship between the char pore radius and the mean free path influences the gas–solid diffusion process . However, it has not been elucidated which of the following influencing factors are the most important in the CO 2 gasification of biomass char: alkali and alkaline earth metals (AAEMs) in the ash, reaction temperature, and char structure. , In addition, the compositions of the inorganic components of biomass, which are dependent on the type of biomass (e.g., fruit-tree PBs, park tree PBs, or timber waste [TW]) and their biological classifications (e.g., tree species), have yet to be elucidated, and their influences on the reaction properties remain unknown.…”

Evaluation of Physical and Chemical Properties of Residue from Gasification of Biomass Wastes

“…However, any remaining solids from this process are normally treated as waste [15], leading to a decrease in process efficiency and an increase in waste production. Current studies indicate that gasification chars have a huge potential, both energetic and adsorptive, as a precursor to the formation of activated carbon (AC) [15,16]. AC is characterized by a high surface area, which indicates its great adsorption capacity.…”