Synthesis of carbon molecular sieves from palm shell by carbon vapor deposition

Ahmad, M.A. and Daud, Wan Mohd Ashri Wan and Aroua, Mohamed Kheireddine (2007) Synthesis of carbon molecular sieves from palm shell by carbon vapor deposition. Journal of Porous Materials, 14 (4). pp. 393-399. ISSN 1380-2224, DOI

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A series of experiments were conducted to produce carbon molecular sieves (CMS) through carbon deposition from a locally available palm shell of Tenera type for separating gaseous mixtures. The process involves three stages; carbonization, physical activation with steam, and carbon deposition by using benzene cracking technique. Carbonization of the dried palm shells was occurred at 900 degrees C for duration of 1 h followed by steam activation at 830 degrees C for 30-420 min to obtain activated carbons with different degree of burn-offs. The highest micropore volume of activated carbon obtained at 53.2 burn-off was used as a precursor for CMS production. Subsequent carbon deposition of the activated sample at temperature range from 600 to 900 degrees C for 30 min has resulted in a series of CMSs with different selectivities of CO2/CH4 and O-2/N-2. The kinetic adsorption isotherm of CO2, CH4, O-2 and N-2 at room temperature also presented in this work.

Item Type: Article
Additional Information: 215FE Times Cited:5 Cited References Count:22
Uncontrolled Keywords: carbon molecular sieves; palm shell; activation; benzene deposition; pore-size; gas-mixtures; methane; fibers; separation; coal
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: 17 Jul 2013 06:50
Last Modified: 20 Sep 2019 02:12

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