Impregnation of palm shell-based activated carbon with sterically hindered amines for CO2 adsorption

Lee, C.S. and Ong, Y.L. and Aroua, M.K. and Daud, W.M.A.W. (2013) Impregnation of palm shell-based activated carbon with sterically hindered amines for CO2 adsorption. Chemical Engineering Journal, 219. pp. 558-564. ISSN 1385-8947, DOI

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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.

Item Type: Article
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:
Uncontrolled Keywords: Activated carbon; Adsorption; Alkanolamine; Chemical impregnation; Sterically hindered amine.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 16 Jul 2013 01:54
Last Modified: 08 Nov 2017 08:50

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