Impregnation of palm shell-based activated carbon with sterically hindered amines for CO2 adsorption
Document Type
Article
Publication Date
1-1-2013
Abstract
In this work, equimolar amounts of three types of sterically hindered amines (e.g. 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol and 2-(methylamino)ethanol) were impregnated onto the surface of palm shell-based activated carbon. Breakthrough curves of CO2 adsorption were determined using a continuous gas-solid adsorption column. Effects of the type of amine and gas flow rates on the breakthrough time were studied. The results showed that impregnated activated carbon have higher adsorption capacity than virgin activated carbon despite the dramatic decrease in surface area during impregnation. Among the three investigated amines, 2-amino-2-methyl-1-propanol showed the highest bed adsorption capacity.
Keywords
Activated carbon, Adsorption, Alkanolamine, Chemical impregnation, Sterically hindered amine.
Divisions
fac_eng
Publication Title
Chemical Engineering Journal
Volume
219
Publisher
Elsevier
Additional Information
Export Date: 21 April 2013 Source: Scopus Article in Press CODEN: CMEJA :doi 10.1016/j.cej.2012.10.064 Language of Original Document: English Correspondence Address: Aroua, M.K.; Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpuremail: mkaroua@um.edu.my