Exploring adsorbent potential: Investigating the characteristics of macadamia husk char from pilot-scale gasification

Establishing a comprehensive database of char properties from pilot-scale gasification is crucial for identifying optimal applications for carbonaceous residues and advancing the sustainability of this technology. This study explores the intricate characteristics of macadamia husk char generated through pilot-scale gasification, highlighting its potential utility. The resulting char exhibits a porous structure primarily composed of micropores, with a heterogeneous distribution of inorganic minerals, notably K (12 mg g-1) and Ca (41 mg g-1), enhancing adsorption capabilities. Additionally, the surface is rich in oxygen-containing functional groups, such as carbonyl, carboxyl, and hydroxyl moieties, enhancing CO2 adsorption. The results emphasize the practicality of using macadamia husk for large-scale gasification, which can produce solid adsorbents. This dataset makes a substantial contribution to enhancing the sustainability of biomass gasification.