中文摘要：

针对当前煤样取芯过程瓦斯漏失严重的问题，冷冻取样法成为未来瓦斯含量准确测定的一个新方向，而低温环境（0℃及以下）煤的瓦斯解吸特性研究是关键。为此，笔者采用自制高低温吸附／解吸装置，对低温环境煤的瓦斯解吸规律开展了试验研究。研究结果表明，温度对煤的解吸量影响明显，随温度的降低，煤的瓦斯吸附量有增大的趋势，而随着温度的降低，煤的瓦斯解吸量却有减小的趋势，即降低温度抑制了瓦斯解吸，而且温度越低，抑制解吸效果越明显。瓦斯压力增大，将会消弱低温环境煤的瓦斯解吸抑制效果。

英文摘要：

Gas loss is serious in current coal core method, and freezing core technology will become a new direction for gas content determination in the future, so it is the key to study gas desorption characteristics in low temperature environment （below 0℃）. Therefore, in this paper, a self-made high/low temperature gas adsorption/desorption device is used to test gas desorption laws in low temperatures （--10, --20 and --30 ℃）. The tested results show that the effect of temperature on gas desorption is very obvious. When temperature decreases, gas adsorption quantity increases; while gas desorption quantity decreases as temperature decreases. Lowering temperature suppresses gas desorption. And the lower the temperature is, the more obvious the gas desorption inhibitory effect is. Increasing gas pressure weakens gas desorption inhibitory effect in low temperature environment.