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Non-Isothermal Desorption of Carbon Dioxide from Polish Coals with Different Texture

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  • Adam Nodzenski

Abstract

The process of gas evolution from coal depends to a great extent on coal texture, and specially on the structure of its pores. A transport of sorbate from within a grain to its external surface, and therefore the evolution of gas desorbed from coal depends on the structure of pores. Results of the investigations of nonisothermal desorption of carbon dioxide from several Polish coals were given in the article. A comparison of nonisothermal desorption curves obtained under the same conditions for coals with different pore volumes and pore volume distributions showed that the-process of gas evolution depends on the porous structure of coal. Basing on the analysis of experimental data, a possibility of the differentiation between outburst-prone coals and those which are believed not to lead to outbursts was shown. The properties of capillary structure characteristic for outbursts-prone coals were determined.

Suggested Citation

  • Adam Nodzenski, 1995. "Non-Isothermal Desorption of Carbon Dioxide from Polish Coals with Different Texture," Energy & Environment, , vol. 6(3), pages 237-246, September.
    • Handle: RePEc:sae:engenv:v:6:y:1995:i:3:p:237-246
    DOI: 10.1177/0958305X9500600305
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