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高温高压条件下无机矿化剂对煤石墨化影响研究
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Abstract:
煤系隐晶质石墨一般是指煤及碳质页岩在岩浆热和地层压力作用下形成的一种特殊矿产。而针对无机矿物对煤系隐晶质石墨成矿的差异性影响尚不明确，在一定程度上限制了煤系隐晶质石墨的勘探与开发以及煤炭资源的综合利用。本文选用汝箕沟无烟煤为研究对象，以FeS、FeCl3和CaCO3为矿化剂，通过拉曼光谱(Raman)和扫描电镜图(SEM)等测试手段，研究高温高压条件下矿化剂对煤石墨化的影响。结果显示，高温高压条件下，FeS、FeCl3和CaCO3对煤向石墨转化的催化效果明显，且催化效果FeS > FeCl3 > CaCO3。
Coal bearing cryptocrystalline graphite generally refers to a special mineral formed from coal and carbonaceous shale under the action of magma heat and formation pressure. However, the disparate impact of inorganic minerals on the mineralization of coal bearing cryptocrystalline graphite is still unclear, which limits the exploration and development of coal bearing cryptocrystalline graphite and the comprehensive utilization of coal resources. The anthracite coal from Rujigou Coalmine in Ningxia Hui Autonomous Region of China was selected as the research object, and FeS, FeCl3, and CaCO3 as mineralizers. By using test methods such as Raman spectroscopy (Raman)and scanning electron microscopy (SEM), the effect of mineralizers on coal graphitization under high temperature and high pressure conditions was studied. The results showed that under high temperature and high pressure conditions, FeS, FeCl3, and CaCO3 had significant catalytic effects on the conversion of coal to graphite, and the catalytic effect was FeS > FeCl3 > CaCO3.
| [1] | 任辉, 刘兴旺, 祁才吉, 等. 我国煤系石墨研究现状及开发利用制约因素探讨[J]. 地质论评, 2024, 70(6): 2255-2269. |
| [2] | González, D., Montes-Morán, M.A., Young, R.J. and Garcia, A.B. (2002) Effect of Temperature on the Graphitization Process of a Semianthracite. Fuel Processing Technology, 79, 245-250. https://doi.org/10.1016/s0378-3820(02)00181-9 |
| [3] | Xing, B., Zhang, C., Cao, Y., Huang, G., Liu, Q., Zhang, C., et al. (2018) Preparation of Synthetic Graphite from Bituminous Coal as Anode Materials for High Performance Lithium-Ion Batteries. Fuel Processing Technology, 172, 162-171. https://doi.org/10.1016/j.fuproc.2017.12.018 |
| [4] | 尹丽文. 世界石墨资源开发利用现状[J]. 国土资源情报, 2011(6): 29-32, 23. |
| [5] | 高树学, 颜玲亚, 陈正国, 等. 中国石墨矿床类型、成矿区带划分及成矿规律[J]. 中国非金属矿工业导刊, 2019(S1): 18-24. |
| [6] | 曹代勇, 李小明, 张守仁. 构造应力对煤化作用的影响——应力降解机制与应力缩聚机制[J]. 中国科学(D辑: 地球科学), 2006, 36(1): 59-68. |
| [7] | 刘钦甫, 袁亮, 李阔, 等. 不同变质程度煤系石墨结构特征[J]. 地球科学, 2018, 43(5): 1663-1669. |
| [8] | 曹代勇, 魏迎春, 李阳, 等. 煤系石墨鉴别指标厘定及分类分级体系构建[J]. 煤炭学报, 2021, 46(6): 1833-1846. |
| [9] | 李焕同, 邹晓艳, 夏炎, 等. 煤系石墨微晶结构各向异性和非均质性的拉曼光谱表征[J]. 光谱学与光谱分析, 2024, 44(12): 3560-3567. |
| [10] | 袁亮, 张浩, 李阔, 等. 煤天然石墨化过程中显微组分变化研究[J]. 矿物学报, 2024, 44(6): 814-824. |
| [11] | 陈高健, 曹代勇, 王安民, 等. 添加二氧化硅的煤石墨化高温高压模拟实验[J]. 矿业科学学报, 2024, 9(2): 144-155. |
| [12] | 曹代勇, 陈高健, 魏迎春, 等. 不同温压实验条件下添加SiO2对煤石墨化能力的影响研究[C]//2023年中国地球科学联合学术年会. 2023年中国地球科学联合学术年会论文集. 2023: 44-45. |
| [13] | Bustin, R.M., Rouzaud, J.-N. and Ross, J.V. (1995) Natural Graphitization of Anthracite: Experimental Considerations. Carbon, 33, 679-691. https://doi.org/10.1016/0008-6223(94)00155-s |
| [14] | González-Correa, S., Bolonio, D., Ballesteros, R. and Lapuerta, M. (2024) Estimation of Soot Refractive Index from Its Nanostructural Parameters with the Dispersion Model. Carbon, 228, Article 119426. https://doi.org/10.1016/j.carbon.2024.119426 |
| [15] | Taner, M.F., Drever, C., Yakymchuk, C. and Longstaffe, F.J. (2017) Origin of Graphite in the Southwestern Grenville Province. The Canadian Mineralogist, 55, 1041-1055. https://doi.org/10.3749/canmin.1700029 |
| [16] | Fox, D., O’Neill, A., Zhou, D., Boese, M., Coleman, J.N. and Zhang, H.Z. (2011) Nitrogen Assisted Etching of Graphene Layers in a Scanning Electron Microscope. Applied Physics Letters, 98, Article 243117. https://doi.org/10.1063/1.3601467 |
| [17] | 李阔. 湖南新化煤系石墨结构有序化过程研究[D]: [博士学位论文]. 北京: 中国矿业大学, 2019. |
| [18] | 姚宗序, 杜晨衔, 周郑琪, 等. 焦煤的石墨化及煤系矿物的变迁研究[J]. 选煤技术, 2021, 49(6): 7-13. |
