Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core
Moisture content in coal is an important factor affecting the coal seam gas extraction. It directly affects the storage and flow of gas in bituminous coal. In this paper, the cylindrical bituminous coal cores of Xutuan coal mine in Huaibei coal mine group were studied as experimental objects, using...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2018-10-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617418788444 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544561998594048 |
|---|---|
| author | Dingyi Hao Lei Zhang Mingxue Li Shihao Tu Cun Zhang Qingsheng Bai Chen Wang |
| author_facet | Dingyi Hao Lei Zhang Mingxue Li Shihao Tu Cun Zhang Qingsheng Bai Chen Wang |
| author_sort | Dingyi Hao |
| collection | DOAJ |
| description | Moisture content in coal is an important factor affecting the coal seam gas extraction. It directly affects the storage and flow of gas in bituminous coal. In this paper, the cylindrical bituminous coal cores of Xutuan coal mine in Huaibei coal mine group were studied as experimental objects, using the laboratory self-designed experimental device Gas Adsorption and Strain Testing Apparatus system . The influence of the bituminous coal moisture content on gas adsorption characteristics was studied. Drying experiments of coal samples showed that they lose the original moisture content following the exponential decay function of time. At wetting, the saturated moisture content in coal samples increased following the Exponential Association function of time. The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out. With the moisture content increase, the gas adsorption capacity and saturation value decreased and the decrease rate gradually reduced. The single exponential decay function describes the gas adsorption capacity dependence on moisture content. Moisture content also affects the adsorption deformation of bituminous coal. At high moisture content, the adsorption deformation of bituminous coal is less. |
| format | Article |
| id | doaj-art-98726b651a854207a60b0645c3eac8cb |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-98726b651a854207a60b0645c3eac8cb2025-02-03T10:08:10ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-10-013610.1177/0263617418788444Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal coreDingyi HaoLei ZhangMingxue LiShihao TuCun ZhangQingsheng BaiChen WangMoisture content in coal is an important factor affecting the coal seam gas extraction. It directly affects the storage and flow of gas in bituminous coal. In this paper, the cylindrical bituminous coal cores of Xutuan coal mine in Huaibei coal mine group were studied as experimental objects, using the laboratory self-designed experimental device Gas Adsorption and Strain Testing Apparatus system . The influence of the bituminous coal moisture content on gas adsorption characteristics was studied. Drying experiments of coal samples showed that they lose the original moisture content following the exponential decay function of time. At wetting, the saturated moisture content in coal samples increased following the Exponential Association function of time. The experimental results show that the average original moisture content and average saturated moisture content of raw coal samples are 1.3 and 2.4%, respectively. On this basis, the gas adsorption experiments on samples with different moisture contents under different gas pressures were carried out. With the moisture content increase, the gas adsorption capacity and saturation value decreased and the decrease rate gradually reduced. The single exponential decay function describes the gas adsorption capacity dependence on moisture content. Moisture content also affects the adsorption deformation of bituminous coal. At high moisture content, the adsorption deformation of bituminous coal is less.https://doi.org/10.1177/0263617418788444 |
| spellingShingle | Dingyi Hao Lei Zhang Mingxue Li Shihao Tu Cun Zhang Qingsheng Bai Chen Wang Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core Adsorption Science & Technology |
| title | Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core |
| title_full | Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core |
| title_fullStr | Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core |
| title_full_unstemmed | Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core |
| title_short | Experimental study of the moisture content influence on CH adsorption and deformation characteristics of cylindrical bituminous coal core |
| title_sort | experimental study of the moisture content influence on ch adsorption and deformation characteristics of cylindrical bituminous coal core |
| url | https://doi.org/10.1177/0263617418788444 |
| work_keys_str_mv | AT dingyihao experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT leizhang experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT mingxueli experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT shihaotu experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT cunzhang experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT qingshengbai experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore AT chenwang experimentalstudyofthemoisturecontentinfluenceonchadsorptionanddeformationcharacteristicsofcylindricalbituminouscoalcore |