突出危险型煤瓦斯等温解吸试验研究
发布时间：2019-08-16 15:15
【摘要】：为深入研究突出危险煤瓦斯解吸特征,以块状型煤为研究对象,开展瓦斯等温吸附和解吸试验,分析解吸试验过程中最小平衡压力对解吸过程吸附常数的影响,探讨瓦斯吸附和解吸过程的可逆性、合理的解吸试验压力条件及其数据处理方法。结果表明:最小平衡压力对解吸过程吸附常数拟合结果影响较大;突出危险型煤在实验室条件下,等温吸附/解吸瓦斯过程有典型的可逆性,解吸过程有滞后性;等温解吸曲线仍服从Langmuir方程;为使解吸试验结果可靠性更高,拟合中应考虑解吸完全时的状态,即解吸平衡压力为0 MPa、残余吸附量为0 m L/g时的数据;解吸试验过程中,最小平衡压力不宜高于0.51 MPa。
[Abstract]:In order to deeply study the gas desorption characteristics of outburst dangerous coal, taking block briquette as the research object, the adsorption and desorption test of gas isotherm was carried out, the influence of minimum equilibrium pressure on the adsorption constant of desorption process was analyzed, the reversibility of gas adsorption and desorption process, the reasonable desorption test pressure condition and the data processing method were discussed. The results show that the minimum equilibrium pressure has a great influence on the fitting results of adsorption constant in desorption process, the isotherm adsorption / desorption process of outburst dangerous briquette has typical reversibility and lag in desorption process under laboratory conditions, and the isotherm desorption curve still obeys Langmuir equation. In order to make the desorption test results more reliable, the state of complete desorption should be considered in the fitting, that is, the data when the desorption equilibrium pressure is 0 MPa, and the residual adsorption capacity is 0 mL 鈮，
本文编号：2527513
[Abstract]:In order to deeply study the gas desorption characteristics of outburst dangerous coal, taking block briquette as the research object, the adsorption and desorption test of gas isotherm was carried out, the influence of minimum equilibrium pressure on the adsorption constant of desorption process was analyzed, the reversibility of gas adsorption and desorption process, the reasonable desorption test pressure condition and the data processing method were discussed. The results show that the minimum equilibrium pressure has a great influence on the fitting results of adsorption constant in desorption process, the isotherm adsorption / desorption process of outburst dangerous briquette has typical reversibility and lag in desorption process under laboratory conditions, and the isotherm desorption curve still obeys Langmuir equation. In order to make the desorption test results more reliable, the state of complete desorption should be considered in the fitting, that is, the data when the desorption equilibrium pressure is 0 MPa, and the residual adsorption capacity is 0 mL 鈮，
本文编号：2527513
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