Simplified Bidisperse Diffusion Model of Methane Adsorption/Diffusion in Coal

摘要：

The development of micro-structure on coal beds, gas distribution in macropores in free state and in adsorbed state, a simplified bidisperse diffusion mathematical model of methane adsorption/diffusion in coal, a basic conception of apparent diffusion coefficient and detailed methods to solve this mathematical model of gas release in coal beds are given. Simulated values of macropores and micropores diffusion coefficients, and the rules of apparent diffusion coefficients under different pressure and porosity in coal particles based on the experimental data of Nantong and Sanhui mining are given. It offers the theoretical foundation and methods for the decision and project selection on CBM and ECBM processes.

关键词： simplified bidisperse diffusion model adsorption diffusion numerical simulation

作者: YI Jun JIANG Yongdong XUAN Xuefu ZHANG Yu

作者单位: Chongqing University of Science & Technology,Chongqing 400042,China;The Key Laboratory of the Exploi The Key Laboratory of the Exploitation of Southwest Resources & the Environmental Disaster Control E

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1649-1654

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）