Efficient CO2 Capture by Ultra‐high Microporous Activated Carbon Made from Natural Coal. Issue 1 (10th December 2020)

• Record Type: Journal Article
• Authors: Boujibar, Ouassim; Ghamouss, Fouad; Ghosh, Arunabh; Achak, Ouafae; Chafik, Tarik
• Is Part Of: Chemical engineering & technology. Volume 44:Issue 1(2021)
• Page Start: 148
• Page End: 155
• Publication Date: 2020-12-10
• Subjects: Activated carbons -- CO2 capture -- Microporosity -- Natural coal -- Oxygenated functional groups; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.202000138
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: Efficient CO2 capture capabilities of activated carbons prepared from natural coal are presented. The preparation method involved simple chemical activation using wet impregnation or dry physical mixing of the raw sample with activating agents like KOH or NaOH. The activated materials were characterized for their structural and textural properties by different analysis techniques. The activated samples exhibited well‐developed porosity, large surface area, and high pore volumes and had other active elements like oxygenated functional groups. These groups modified the surface energy of the resultant samples. The superior performance of the activated carbons was attributed to several factors, including large surface area, presence of narrow micropores, and oxygenated functional groups on the surface. Abstract : Microporous activated carbons derived from Moroccan coal were successfully synthesized through chemical activation using either KOH or NaOH, showing great potential for CO2 capturing efficiency. The activated samples exhibited well‐developed porosities, large surface areas, and high pore volumes, being promising towards capturing pre‐ and postcombustion CO2 gases at different power plants.