Carbon Dioxide (CO2) Adsorption by Activated Carbon Functionalized with Deep Eutectic Solvent (DES)

29th Symposium of Malaysian Chemical Engineers 2016

Zulkurnai, N.Z.^1 ; Mohammad Ali, U.F.^1 ; Ibrahim, N.^1 ; Abdul Manan, N.S.^2

School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Perlis, Arau

02600, Malaysia^1

Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur

50603, Malaysia^2

关键词: Adsorption by activated carbon;    Carbon dioxide emissions;    Carbonization process;    Chemical adsorption;    Choline chloride;    Deep eutectic solvents;    Functionalized;    Pre-carbonization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012001/pdf
DOI  :  10.1088/1757-899X/206/1/012001

来源: IOP

【 摘 要 】

In recent years, carbon dioxide (CO2) emission has become a major concern as the amount of the emitted gas significantly increases annually. Consequently, this phenomenon contributes to global warming. Several CO2capture methods, including chemical adsorption by activated carbon, have been proposed. In this study, activated carbon was prepared from sea mango (Cerbera odollam), which was functionalized with deep eutectic solvent (DES) composed of choline chloride and glycerol to increase the efficiency of CO2capture. The samples underwent pre-carbonization and carbonization processes at 200 °C and 500 °C, respectively, with nitrogen gas and flowing several gases, namely, CO2and steam, and then followed by impregnation with 50 phosphoric acid (H3PO4) at 1:2 precursor-to-activant ratio. The prepared activated carbon was impregnated with DES at 1:2 precursor-to-activant ratio. The optimum CO2adsorption capacity of the activated carbon was obtained by using CO2gas treatment method (9.851 mgCO2/gsol), followed by the absence of gases (9.685 mgCO2/gsol), steam (9.636 mgCO2/gsol), and N2(9.536 mgCO2/gsol).