摘要
煤矿在生产过程中会将大量含有低浓度甲烷的瓦斯直接排放至大气,造成了严重的能源浪费,也加剧了温室效应。本文针对传统的瓦斯富集技术存在的缺点,提出了利用Soret效应进行煤矿瓦斯中混合气的分离和对甲烷的富集。通过理论分析,确定了初始甲烷浓度和温差是影响富集过程的主要参数;并通过实验和数值模拟,研究了这些参数影响富集效果的规律。
A large number of low concentration methane gas is emitted directly into the atmosphere during the coal production,resulting in a serious waste of energy and the greenhouse effect.Aiming at the shortcomings of conventional coal mine methane enrichment technology existed,the papar presented separation and enrichment coal mine methane with the Soret effect.The theoretical analysis proposed the main parameters of the enrichment process is the initial methane concentrations and the temperature gradient.The effect law of these parameters is studied by experiments and numerical simulations.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2015年第12期2637-2640,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.51106127)
教育部新世纪优秀人才计划(No.NCET-13-0468)
关键词
热扩散
Soret效应
瓦斯富集
thermal diffusion
Soret effect
coal mine methane enrichment
