In the conducted research, the effect of moisture on CO₂ sorption and transport processes and changes occurring in the coal pore structure were investigated in detail. The measurements were carried out under isothermal (313 K) and isobaric conditions (0.1−0.8 MPa) on the original device - a manometric sorptomat. Coal sorption capacities, Langmuir sorption isotherms, effective diffusion coefficients and structural parameters were analysed. The obtained sorption capacities of the tested samples relative to CO₂ for pressures 0.1, 0.3 and 0.8 MPa confirmed that moisture significantly (even up to 6 times) reduces the sorption capacity of coal relative to CO₂, and the largest reduction in sorption capacities was noted on coal with the lowest vitrinite reflectance. It was observed that the increase of the sorption equilibrium pressure decreases the effect of the reduction of the sorption capacity of coal under the influence of moisture, and above 1.0 MPa this effect disappears completely. The critical moisture content was estimated, above which there is no further reduction of the coal sorption capacity due to the increase in moisture content. It was observed that the influence of moisture on CO₂ diffusion in its pore space is not clear. Structural analysis were carried out by low-pressure CO₂ adsorption at 273 K and 0−0.1 MPa. After increasing the coal moisture content, the surface area decreased by 50 % and a decrease in the volume of available pores with diameters in the range of 0.5−0.6 nm was noted.

在进行的研究中，详细研究了水分对CO ₂吸附和传输过程以及煤孔隙结构中发生的变化的影响。测量是在等温条件下（313 K）和等压条件（0.1-0.8 MPa）上，在原始设备-压力计量仪上进行的。分析了煤的吸附能力，Langmuir吸附等温线，有效扩散系数和结构参数。在0.1、0.3和0.8 MPa的压力下，测试样品相对于CO ₂的吸附容量证实了水分（甚至高达6倍）大大降低了煤对CO ₂的吸附容量，吸附力下降最大的是在镜质体反射率最低的煤上。观察到，吸附平衡压力的增加降低了在水分影响下煤吸附能力降低的效果，而在1.0 MPa以上，该效果完全消失。估计了临界水分含量，在此之上，由于水分含量的增加，煤的吸附能力没有进一步降低。观察到水分对CO ₂在其孔空间中扩散的影响尚不清楚。用低压CO ₂进行结构分析在273 K和0-0.1 MPa下吸附。在增加煤的水分含量之后，表面积减少了50％，并且注意到直径在0.5-0.6 nm范围内的可用孔的体积减少了。