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Gas adsorption in active carbons and the slit-pore model 1: pure gas adsorption

Sweatman, M.B. and Quirke, N. (2005) Gas adsorption in active carbons and the slit-pore model 1: pure gas adsorption. Journal of Physical Chemistry B, 109 (20). pp. 10381-10388. ISSN 1520-6106

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Abstract

We describe procedures based on the polydisperse independent ideal slit-pore model, Monte Carlo simulation and density functional theory (a 'slab-DFT') for predicting gas adsorption and adsorption heats in active carbons.A novel feature of this work is the calibration of gas-surface interactions to a high surface area carbon, rather than to a low surface area carbon as in all previous work. Our models are used to predict the adsorption of carbon dioxide, methane, nitrogen, and hydrogen up to 50 bar in several active carbons at a range of near-ambient temperatures based on an analysis of a single 293 K carbon dioxide adsorption isotherm. The results demonstrate that these models are useful for relatively simple gases at near-critical or supercritical temperatures.

Item type: Article
ID code: 13474
Keywords: gas adsorption, active carbons, carbon, aslit-pore model 1, pure, chemical engineering, Chemistry, Engineering (General). Civil engineering (General), Materials Chemistry, Surfaces, Coatings and Films, Physical and Theoretical Chemistry
Subjects: Science > Chemistry
Technology > Engineering (General). Civil engineering (General)
Department: Faculty of Engineering > Chemical and Process Engineering
Depositing user: Dr Martin Sweatman
Date Deposited: 18 Nov 2009 16:59
Last modified: 18 Jun 2015 08:45
URI: http://strathprints.strath.ac.uk/id/eprint/13474

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