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

Ngoc Linh Vu; Thi Mai Thanh Dinh; Thu Phuong Nguyen; Phuong Thu Le; Thi Hai Do; Trung Dung Nguyen; Hong Nam Nguyen

doi:10.62239/jca.2024.068

Authors

Ngoc Linh Vu University of Engineering and Technology, Vietnam National University Author
Thi Mai Thanh Dinh University of Science and Technology of Hanoi Author
Thu Phuong Nguyen Institute for Tropical Technology, Vietnam Academy of Science and Technology Author
Phuong Thu Le University of Science and Technology of Hanoi Author
Thi Hai Do Hanoi University of Mining and Geology Author
Trung Dung Nguyen Le Quy Don Technical University Author
Nguyen Hong Nam University of Science and Technology of Hanoi Author

DOI:

https://doi.org/10.62239/jca.2024.068

Keywords:

macadamia residues, gasification, pilot scale, CO2 adsorbent

Abstract

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.

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