Journal ArticleDOI
Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part IV. Catalytic effects of NaCl and ion-exchangeable Na in coal on char reactivity☆
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In this article, the authors investigate the catalytic effects of Na as NaCl or as sodium carboxylates (COONa) in Victorian brown coal on the char reactivity.About:
This article is published in Fuel.The article was published on 2003-03-01. It has received 211 citations till now. The article focuses on the topics: Char & Coal.read more
Citations
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Journal ArticleDOI
FT-Raman spectroscopic study of the evolution of char structure during the pyrolysis of a Victorian brown coal
TL;DR: In this article, the authors used FT-Raman spectroscopy with a 1064nm laser to investigate chemical structural changes of char during pyrolysis of brown coal samples.
Journal ArticleDOI
Coal gasification in CO2 atmosphere and its kinetics since 1948: A brief review
TL;DR: In this paper, a brief review of the coal gasification with CO2 as a diluent is presented, where coal rank, pressure, temperature, gas composition, catalyst and the minerals present inside the coal, heating rate, particle size, and diverse reactor types.
Journal ArticleDOI
Some recent advances in the understanding of the pyrolysis and gasification behaviour of Victorian brown coal
TL;DR: A review of recent progress in the understanding of the pyrolysis and gasification behavior of Victorian brown coal can be found in this article, where a brief account of the effects of AAEM species on the pyrotechnic yields of brown coal is given.
Journal ArticleDOI
Chars as carbonaceous adsorbents/catalysts for tar elimination during biomass pyrolysis or gasification
TL;DR: In this paper, two integrated concepts have been proposed that chars can be initially utilized and modified like activated chars for heavy metals or tars adsorption, after that, the saturated char-supported metallic catalysts can be employed for tar conversion.
Journal ArticleDOI
Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part I. Volatilisation of Na and Cl from a set of NaCl-loaded samples
TL;DR: In this article, a set of brown coal samples was pyrolysed in a thermogravimetric analyser and in a novel fluidised-bed/fixed-bed reactor.
References
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Journal ArticleDOI
Fates and roles of alkali and alkaline earth metals during the pyrolysis of a Victorian brown coal
TL;DR: In this paper, H-, Na- and Ca-form coal samples were prepared from a sample of Loy Yang brown coal and pyrolysed in a wire-mesh reactor.
Journal ArticleDOI
Factors affecting the reactivity of coal chars during gasification, and indices representing reactivity
TL;DR: In this paper, the authors reviewed literature data for the rate of gasification of coal chars with oxygen, CO2 and steam and clarified the factors controlling this process. But, they did not consider the effect of the number of active sites in the coal matrix.
Fates and roles of alkali and alkaline earth metals during the pyrolysis of Victorian brown coal
TL;DR: In this article, H-, Na- and Ca-form coal samples were prepared from a sample of Loy Yang brown coal and pyrolysed in a wire-mesh reactor.
Journal ArticleDOI
Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part I. Volatilisation of Na and Cl from a set of NaCl-loaded samples
TL;DR: In this article, a set of brown coal samples was pyrolysed in a thermogravimetric analyser and in a novel fluidised-bed/fixed-bed reactor.
Journal ArticleDOI
Reactivities of 34 coals under steam gasification
TL;DR: In this article, the effect of coal rank on the gasification rate of coal char was examined and it was concluded that the surface active sites and/or the amount of exchangeable Ca and Na control the reactivity of low-rank coal chars in H2O.