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Experimental and theoretical study of methane adsorption on granular activated carbons

  1. Yuguo Wang,
  2. Cemal Ercan*,
  3. Anwar Khawajah,
  4. Rashid Othman

Article first published online: 27 APR 2011

DOI: 10.1002/aic.12611

Issue

AIChE Journal

AIChE Journal

Volume 58, Issue 3, pages 782–788, March 2012

Additional Information

How to Cite

Wang, Y., Ercan, C., Khawajah, A. and Othman, R. (2012), Experimental and theoretical study of methane adsorption on granular activated carbons. AIChE J., 58: 782–788. doi: 10.1002/aic.12611

Author Information

  1. Research & Development Center, Saudi Arabia Oil Co., Dhahran, 31311, Saudi Arabia

*Research & Development Center, Saudi Arabia Oil Co., Dhahran, 31311, Saudi Arabia

Publication History

  1. Issue published online: 6 FEB 2012
  2. Article first published online: 27 APR 2011
  3. Accepted manuscript online: 25 MAR 2011 09:24AM EST
  4. Manuscript Revised: 21 FEB 2011
  5. Manuscript Received: 24 OCT 2010

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Keywords:

  • methane adsorption;
  • Toth equation;
  • activated carbon;
  • isosteric heat;
  • integral heat of adsorption

Abstract

The experimental and theoretical study of methane adsorption on granular activated carbons is presented. The adsorption data are modeled by various isotherm equations. Toth equation is found to have the best fit. The isosteric heat decreases with loading and increases weakly with temperature, which is an indication of heterogeneity of the methane and granular activated carbon system. Using optimized parameters from Toth equation, a novel procedure is developed to calculate the integral heat of adsorption, which is the total amount of isosteric heat of adsorption at a given temperature and pressure during the adsorption process. © 2011 American Institute of Chemical Engineers AIChE J, 2012

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