High-temperature and high-pressure simulation of coal graphitization with SiO2 additive
This study investigates the effect of SiO2 minerals on coal graphitization under natural conditions through high-temperature and high-pressure simulation experiment to invert the coal-based graphite formation environment.We thoroughly mixed the SiO2 additive with the sorted vitrinite in coal (from t...
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| Format: | Article |
| Language: | English |
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Emergency Management Press
2024-04-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024.02.002 |
| _version_ | 1797215341505413120 |
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| author | CHEN Gaojian CAO Daiyong WANG Anmin WEI Yingchun LIU Zhifei ZHAO Meng |
| author_facet | CHEN Gaojian CAO Daiyong WANG Anmin WEI Yingchun LIU Zhifei ZHAO Meng |
| author_sort | CHEN Gaojian |
| collection | DOAJ |
| description | This study investigates the effect of SiO2 minerals on coal graphitization under natural conditions through high-temperature and high-pressure simulation experiment to invert the coal-based graphite formation environment.We thoroughly mixed the SiO2 additive with the sorted vitrinite in coal (from the Gemudi mining area in Guizhou province[SW China]) and then carried out high-temperature and high-pressure simulation experiment with ranging from 600 ℃ to 1 200 ℃, 1.5 GPa to 2.0 GPa.The graphitization products of the samples were analyzed by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy (HRTEM) to investigate the influence of the SiO2 additive on the process of coal graphitization.Results show that in contrast to the graphitization-promoting ability exhibited in high-temperature environments, SiO2 demonstrates a hindering effect on graphitization in high-temperature and high-pressure environments, inhibiting the growth of coal graphitization.This finding provides an hypothesis for the lower graphitization of coal in areas with strong tectonics under natural conditions. |
| first_indexed | 2024-04-24T11:28:32Z |
| format | Article |
| id | doaj.art-22545b9483de41dc9dcadc4cd5c09685 |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-24T11:28:32Z |
| publishDate | 2024-04-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-22545b9483de41dc9dcadc4cd5c096852024-04-10T12:16:19ZengEmergency Management Press矿业科学学报2096-21932024-04-019214415510.19606/j.cnki.jmst.2024.02.002kykxxb-9-2-144High-temperature and high-pressure simulation of coal graphitization with SiO2 additiveCHEN Gaojian0CAO Daiyong1WANG Anmin2WEI Yingchun3LIU Zhifei4ZHAO Meng5College of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaThis study investigates the effect of SiO2 minerals on coal graphitization under natural conditions through high-temperature and high-pressure simulation experiment to invert the coal-based graphite formation environment.We thoroughly mixed the SiO2 additive with the sorted vitrinite in coal (from the Gemudi mining area in Guizhou province[SW China]) and then carried out high-temperature and high-pressure simulation experiment with ranging from 600 ℃ to 1 200 ℃, 1.5 GPa to 2.0 GPa.The graphitization products of the samples were analyzed by X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy (HRTEM) to investigate the influence of the SiO2 additive on the process of coal graphitization.Results show that in contrast to the graphitization-promoting ability exhibited in high-temperature environments, SiO2 demonstrates a hindering effect on graphitization in high-temperature and high-pressure environments, inhibiting the growth of coal graphitization.This finding provides an hypothesis for the lower graphitization of coal in areas with strong tectonics under natural conditions.http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024.02.002coal-based graphitehigh temperature and high pressuresio2 additivegraphitization |
| spellingShingle | CHEN Gaojian CAO Daiyong WANG Anmin WEI Yingchun LIU Zhifei ZHAO Meng High-temperature and high-pressure simulation of coal graphitization with SiO2 additive 矿业科学学报 coal-based graphite high temperature and high pressure sio2 additive graphitization |
| title | High-temperature and high-pressure simulation of coal graphitization with SiO2 additive |
| title_full | High-temperature and high-pressure simulation of coal graphitization with SiO2 additive |
| title_fullStr | High-temperature and high-pressure simulation of coal graphitization with SiO2 additive |
| title_full_unstemmed | High-temperature and high-pressure simulation of coal graphitization with SiO2 additive |
| title_short | High-temperature and high-pressure simulation of coal graphitization with SiO2 additive |
| title_sort | high temperature and high pressure simulation of coal graphitization with sio2 additive |
| topic | coal-based graphite high temperature and high pressure sio2 additive graphitization |
| url | http://kykxxb.cumtb.edu.cn/en/article/doi/10.19606/j.cnki.jmst.2024.02.002 |
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