Quasi-equilibrium swelling and structural parameters of coals

A.V. Astashov; A.A. Belyi; A.V. Bunin

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Quasi-equilibrium swelling and structural parameters of coals

机译：煤的准平衡膨胀与结构参数

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The kinetic dependences of sorption (a) and deformation (ξ) measured simultaneously in samples of coals of different ranks have been obtained. The experimental ξ(a) dependences have been used to analyze the relationship between sorption and swelling. These dependences have proved to be linear. This allows us to introduce a parameter characterizing the normalized sorption. A model describing the relationship between the new parameter and the sorbate density is proposed. Analysis of the dependence of the parameter on the coal rank has yielded two groups of ξ(a) dependences, which indicates that coals of different ranks differ from one another in the mechanisms of swelling. The adsorbed substance density has been estimated in both groups. The density estimates are plausible for high-rank coals but not for low-rank ones.

机译：获得了在不同等级的煤样品中同时测量的吸附（a）和变形（ξ）的动力学相关性。实验的ξ（a）依赖性已用于分析吸附和溶胀之间的关系。这些相关性已证明是线性的。这使我们能够引入表征归一化吸附的参数。提出了描述新参数与吸附物密度之间关系的模型。通过分析参数对煤阶的依赖性，得出了两组ξ（a）依赖性，这表明不同煤阶的溶胀机理彼此不同。两组都估计了吸附物质的密度。对于高品位煤，密度估计是合理的，但对于低品位煤则不是。

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来源
《Fuel》 |2008年第16期|p.3455-3461|共7页
作者
A.V. Astashov; A.A. Belyi; A.V. Bunin;
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作者单位

Department of Physics, Moscow State University of Mining (MSMU), 6, Leninsky prospect, Moscow 119991, Russia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类燃料化学工业（总论）;热力工程、热机;
关键词
coal; swelling; structure; deformation; sorption;

机译：煤;溶胀;结构;变形;吸附;

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Quasi-equilibrium swelling and structural parameters of coals

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