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Title: Development and validation of pore structure models for adsorption in activated carbons

Abstract

Predicting adsorption over a range of operating conditions and the improvement of the adsorbent itself are two important aspects that arise in the industrial application of adsorption. Both of these aspects can be addressed using molecular simulation techniques in conjunction with an appropriate model of the internal structure of the adsorbent. The internal structure of activated carbons is particularly difficult to model due to the fact that the structure is only locally crystalline and that most of the void volumes within the structure have length scales comparable to small molecules. This paper presents a systematic method to develop suitable models of the internal structure that are based on networks of regularly shaped model pores. Important aspects that are addressed include the realism and consistency of the resulting models. The method is illustrated using the adsorption of pure methane and ethane, and binary mixtures of these components, over a wide range of operating conditions onto four activated carbons.

Authors:
;
Publication Date:
Research Org.:
Univ. of Cambridge (GB)
OSTI Identifier:
20000002
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 15; Journal Issue: 19; Other Information: PBD: 14 Sep 1999; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE; MOLECULAR MODELS; ACTIVATED CARBON; PORE STRUCTURE; SORPTIVE PROPERTIES

Citation Formats

Davies, G.M., and Seaton, N.A. Development and validation of pore structure models for adsorption in activated carbons. United States: N. p., 1999. Web. doi:10.1021/la990160s.
Davies, G.M., & Seaton, N.A. Development and validation of pore structure models for adsorption in activated carbons. United States. doi:10.1021/la990160s.
Davies, G.M., and Seaton, N.A. Tue . "Development and validation of pore structure models for adsorption in activated carbons". United States. doi:10.1021/la990160s.
@article{osti_20000002,
title = {Development and validation of pore structure models for adsorption in activated carbons},
author = {Davies, G.M. and Seaton, N.A.},
abstractNote = {Predicting adsorption over a range of operating conditions and the improvement of the adsorbent itself are two important aspects that arise in the industrial application of adsorption. Both of these aspects can be addressed using molecular simulation techniques in conjunction with an appropriate model of the internal structure of the adsorbent. The internal structure of activated carbons is particularly difficult to model due to the fact that the structure is only locally crystalline and that most of the void volumes within the structure have length scales comparable to small molecules. This paper presents a systematic method to develop suitable models of the internal structure that are based on networks of regularly shaped model pores. Important aspects that are addressed include the realism and consistency of the resulting models. The method is illustrated using the adsorption of pure methane and ethane, and binary mixtures of these components, over a wide range of operating conditions onto four activated carbons.},
doi = {10.1021/la990160s},
journal = {Langmuir},
issn = {0743-7463},
number = 19,
volume = 15,
place = {United States},
year = {1999},
month = {9}
}