Experiment of gas diffusion and its diffusion
mechanism in coal
Li Xiangchun;Nie Baisheng;Zhang Ruming;Chi Leilei
【期刊名称】《矿业科学技术（英文版）》 【年(卷),期】2012(022)006
【摘要】In coal,the gas mainly exists in a free or an adsorption state.When the coal containing gas is damaged,gas desorption and diffusion will occur which can result in gas disaster.This research on gas desorption and diffusion provides a theoretical basis for gas disaster mechanism and prevention.The influence of pressure and temperature on gas diffusion is studied by the experiment.And the mechanism of pressure and temperature on gas diffusion is also analysed.The research results indicate that gas diffusion capacity increases with increasing temperature under the same pressure for the same coal sample.This is mainly because the temperature increases,gas molecular hot motion is severer,kinetic energy of gas molecular increases,and gas desorption quickens,therefore gas diffusion capacity changes stronger.Under other unchanged conditions,the greater gas adsorption balance pressure,the more gas adsorption content,and the higher the initial gas concentration.When gas diffusion begins,the greater the gas concentration gradient,the faster the gas diffusion speeds. 【总页数】5页(885-889)
【关键词】
【作者】Li Xiangchun;Nie Baisheng;Zhang Ruming;Chi Leilei 【作者单位】 【正文语种】英文 【中图分类】 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_international-journal-mining-science-technology_thesis/020128043740.html 【相关文献】
1.Experiment of gas diffusion and its diffusion mechanism in coal [J], Li; Xiangchun; Nie; Baisheng; Zhang; Ruming; Chi; Leilei
2.Experiment study on the propagation laws of gas and coal dust explosion in coal mine [J], SI Rong-jun; LI Run-zhi; WANG Lei; WU Zi-ke
3.Coal and gas outburst mechanism of the “Three Soft” coal seam in western Henan [J], LEI DongJi; LI Chengwu; ZHANG Zimin; ZHANG Yugui
4.Failure modes of coal containing gas and mechanism of gas outbursts [J], HUANG Wei; CHEN Zhanqing; YUE Jianhua; ZHANG Yu; YANG Min 5.Gas diffusion in a cylindrical coal sample-A general solution, approximation and error analyses [J], Li Yaobin; Xue Sheng; Wang Junfeng; Wang Yucang; Xie Jun
以上内容为文献基本信息，获取文献全文请下载
Experiment of gas diffusion and its diffusion mechanism in coal
