Temperature variation of coal during the gas adsorption process
Abstract
Using self-made coal gas adsorption-desorption instrument, a test research on temperature variations of adsorption process under different conditions was made in the laboratory to study adsorption law of coal gas and to reveal coal gas adsorption mechanism. Under the same conditions, the order of unit mass of coal’s gas adsorption and the temperature variation is: Zhenxing 2# Coal> Runhong 3# coal> Malan 8# coal. The experimental results also showed that the gas adsorption get lower as the temperature was getting higher. For the same coal sample under the same condition, the smaller of particle size, the greater pressure variations of methane adsorption process and the larger gas adsorption in same period. The research result of this paper is significant meaningful to reveal the mechanism of coal and gas outburst.
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