Kudasik Mateusz, Skoczylas Norbert, Pajdak Anna
The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Cracow, Poland.
Sensors (Basel). 2020 Oct 15;20(20):5823. doi: 10.3390/s20205823.
In recent years, the interest in the sorption properties of coal in conditions corresponding to in situ has increased due to the continuous development of research on CO-ECBM (Enhanced Coal Bed Methane recovery) technology. In order to gain a better insight into a number of phenomena related to filtration, sorption and CO/CH exchange sorption occurring in coal loaded with confining pressure, which corresponds to the in situ conditions, an innovative research apparatus was built to enable temporal and spatial analysis of these phenomena. The constructed apparatus consists of three systems: a high-pressure system, a gas injection system and a gas emission system. The work presents the results of basic apparatus tests, which were aimed at checking its correct operation and determining its specifications. These tests involved carrying out trial measurements of methane (CH) filtration processes, CH sorption and CO/CH exchange sorption on a coal sample. The results of the tests showed among other things that the apparatus ensured the regulation of the confining pressure in the range of 0.1-40 MPa, the regulation of the pressure at the inlet and outlet of the sample in the range of 0.1-1.6 MPa and 0.1-1.0 MPa and the measurement of changes in the sample volume in the range of 0-7.85 cm. The results of the tests confirmed the correct functioning of the constructed apparatus.
近年来，随着CO-ECBM（强化煤层气开采）技术研究的不断发展，人们对与原位条件相对应的煤的吸附特性的兴趣日益增加。为了更好地了解与在围压作用下煤中发生的过滤、吸附以及CO/CH交换吸附相关的一系列现象（这与原位条件相对应），构建了一种创新的研究装置，以便对这些现象进行时空分析。所构建的装置由三个系统组成：高压系统、气体注入系统和气体排放系统。本文介绍了基础装置测试的结果，这些测试旨在检查其运行是否正常并确定其规格。这些测试包括对煤样进行甲烷（CH）过滤过程、CH吸附以及CO/CH交换吸附的试验测量。测试结果表明，该装置能够确保围压在0.1 - 40 MPa范围内调节，样品进出口压力在0.1 - 1.6 MPa和0.1 - 1.0 MPa范围内调节，以及样品体积变化在0 - 7.85 cm范围内测量。测试结果证实了所构建装置的正常运行。
