中文摘要：

综合分析了低中煤级构造煤甲烷超临界吸附特性,以及常用的吸附理论及其扩展模型对构造煤的适用性。Ⅰ类模型对最大吸附量（V_m）的拟合方差平均值表现为原生〈碎裂〈碎斑〈片状〈揉皱〈碎粒〈鳞片〈糜棱煤,其中T和L-F对原生煤和脆性构造煤的V_m拟合效果较好。Ⅱ类模型对构造煤V_m的拟合方差高于Ⅰ类模型,其中T-BET-1和T-BET-2不适合于鳞片煤。Ⅲ类模型的拟合方差平均值表现为：碎斑〈碎裂〈原生〈碎粒〈揉皱〈鳞片〈糜棱煤,拟合偏差低于Ⅰ和Ⅱ类模型,其中DR1~DR3和DA-3模型可以有效计算鳞片煤和揉皱煤的V_m。DR1~DR3可以较好的反映糜棱煤的V_m。随着构造变形的增强,Ⅲ类模型的吸附饱和度逐渐增高,由单分子层不饱和吸附（原生、碎裂、碎斑）,逐渐过渡为单分子层饱和吸附（碎粒、片状煤）,再过渡为多分子层吸附（鳞片、揉皱、糜棱煤）。原生煤及构造煤吸附势（0~13 kJ/mol）分布均随着吸附空间的增大而逐渐降低。在达到最大吸附量时,吸附空间表现为原生≈碎裂〈碎斑〈碎粒≈片状〈揉皱〈糜棱≈鳞片煤。拟合偏差分析表明：E-L,L-F,L和T,对碎粒煤适应性最强;L,F,T和E-L适合于鳞片煤;L,F,E-L,TBET-3,DR1,DR2适合于揉皱煤;而模型F和T适合于糜棱煤。

英文摘要：

The super critical CH4 adsorption characteristics and applicability for commonly used adsorption theories and the extended models I- III were comprehensively analysed for low-middle rank tectonically deformed coals （TDCs）. The mean fitted variances of type I models for different TDCs manifest as primary-〈cataclastic-〈mortar coals 〈schistose-〈wrinkle-〈granulitic-〈scaly-〈mylonitic coal,where the model T and L-F have the best Vm-fitted effects for primary-and brittle sequence TDCs. The fitted variances of type II models are significantly higher than those of type I models and the model T-BET-1 and T-BET-2 are not suitable for scaly coals. The mean fitted variances of type III models manifest as mortar-〈cataclastic-〈primary-〈granulitic-〈wrinkle-〈scaly-〈mylonitic coals and are significantly lowerthan those of type I and II models ,indicating the better applicability than the former two especially the model DR1-DR3 and DA-3 for the Vm of scaly coals and wrinkle coals. The model DR1-DR3 can better reflect the Vm of mylonitic coals. With the enhancements of tectonic deformation,the adsorption saturations of type III models transit from monolayer un- saturated adsorption （ primary-, cataclastic-, mortar coals）, monolayer saturated adsorption （ granulitic-, schistose coals） to multilayer adsorption （scaly-,wrinkle- and mylonitic coals）. The adsorption potential （0-13 kJ/mol） distributions of primary coals and TDCs decrease with the increase of adsorption spaces based on the adsorption potential theory. The adsorption spaces at the maximum adsorption capacity manifest as primary-≈ cataclastic-〈mortar-〈granulitic-≈ schis- tose-〈wrinkle-〈mylonitic-≈scaly coals. The fitness biases shows that the models E-L, L-F, L and T are the most appli- cable for granulitic coals. The models L, F, T and E-L are suitable for scaly coals, models L, F, E-L, T-BET-3, DR- 1, DR-2 are suitable for wrinkle coals and model F and T are also the most suitable.