CO2 Capture Analysis of Tobacco Biochar-AlCl3 Composite

Abstract

In this study, the performance of tobacco biochar-AlCl<inf>3</inf> composite for CO<inf>2</inf> capture was investigated. Biochar-AlCl<inf>3</inf> composites were prepared at different blend ratios (10:0.4; 10:2; 10:4, wt./wt.) and used for CO<inf>2</inf> capture experiments to determine the optimal Al metal content at which CO<inf>2</inf> adsorption was highest. Biochar composites were produced through slow pyrolysis under inert nitrogen atmosphere in a fixed bed reactor at 600oC for 3h. Properties of biochar-metal composites and raw biochar samples were characterized with SEM-EDS, XRD and FTIR analysis. CO<inf>2</inf> experiments were conducted in TGA under N<inf>2</inf> atmosphere with a flow rate of 50 ml/min at 25°C. The maximum CO<inf>2</inf> adsorption was observed as 59.97 mg g-1 for biochar: AlCl<inf>3</inf> composite at a ratio of 10:2. Finally, results of study showed that biochar-AlCl<inf>3</inf> composites have great potential as a CO<inf>2</inf> capture material due to its low-cost, sustainability and CO<inf>2</inf> capture capacity. © Yildiz Technical University, Environmental Engineering Department. All rights reserved.