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Activation energy for the oxidation of Malaysian coal chars

The oxidation of two Malaysian coal chars has been studied by means of a thermal gravimetric analyser (TGA). The weight-loss data were analysed by the Temperature Program Reaction (TPR) technique, which employed the random pore model of Bhatia & Perlmutter1. All experiments were conducted wi...

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Main Authors: Haji-Sulaiman, M.Z., Aroua, M.K.
Format: Article
Published: Journal of the Institute of Energy 1997
Subjects:
TA Engineering (General). Civil engineering (General)
TP Chemical technology
Online Access:http://eprints.um.edu.my/7510/
http://cat.inist.fr/?aModele=afficheN&cpsidt=2170183
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spelling my.um.eprints.75102013-12-11T02:13:00Z http://eprints.um.edu.my/7510/ Activation energy for the oxidation of Malaysian coal chars Haji-Sulaiman, M.Z. Aroua, M.K. TA Engineering (General). Civil engineering (General) TP Chemical technology The oxidation of two Malaysian coal chars has been studied by means of a thermal gravimetric analyser (TGA). The weight-loss data were analysed by the Temperature Program Reaction (TPR) technique, which employed the random pore model of Bhatia & Perlmutter1. All experiments were conducted within a temperature range of 698-773 K (isothermal condition) and heating rates of 2-10 K min-1 (dynamic condition) with char samples in the size range 53-75 μm. It was found that the random pore model can accurately describe the oxidation of char to yield activation energy that is similar to that obtained from model free kinetics, provided the structural parameter ψ, which is an input to the model, is taken as an adjustable parameter. Journal of the Institute of Energy 1997 Article PeerReviewed Haji-Sulaiman, M.Z. and Aroua, M.K. (1997) Activation energy for the oxidation of Malaysian coal chars. Journal of the Institute of Energy, 70 (483). pp. 52-56. ISSN 0144-2600 http://cat.inist.fr/?aModele=afficheN&cpsidt=2170183 10.1016/S0140-6701(97)80899-5
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
TP Chemical technology
spellingShingle TA Engineering (General). Civil engineering (General)
TP Chemical technology
Haji-Sulaiman, M.Z.
Aroua, M.K.
Activation energy for the oxidation of Malaysian coal chars
description The oxidation of two Malaysian coal chars has been studied by means of a thermal gravimetric analyser (TGA). The weight-loss data were analysed by the Temperature Program Reaction (TPR) technique, which employed the random pore model of Bhatia & Perlmutter1. All experiments were conducted within a temperature range of 698-773 K (isothermal condition) and heating rates of 2-10 K min-1 (dynamic condition) with char samples in the size range 53-75 μm. It was found that the random pore model can accurately describe the oxidation of char to yield activation energy that is similar to that obtained from model free kinetics, provided the structural parameter ψ, which is an input to the model, is taken as an adjustable parameter.
format Article
author Haji-Sulaiman, M.Z.
Aroua, M.K.
author_facet Haji-Sulaiman, M.Z.
Aroua, M.K.
author_sort Haji-Sulaiman, M.Z.
title Activation energy for the oxidation of Malaysian coal chars
title_short Activation energy for the oxidation of Malaysian coal chars
title_full Activation energy for the oxidation of Malaysian coal chars
title_fullStr Activation energy for the oxidation of Malaysian coal chars
title_full_unstemmed Activation energy for the oxidation of Malaysian coal chars
title_sort activation energy for the oxidation of malaysian coal chars
publisher Journal of the Institute of Energy
publishDate 1997
url http://eprints.um.edu.my/7510/
http://cat.inist.fr/?aModele=afficheN&cpsidt=2170183
_version_ 1643688055465312256
score 13.211869

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