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川渝地区煤的石墨化潜势研究

李靖 王路 刘永旺 栾进华 张瑞刚 张森 王安民

李靖,王路,刘永旺,等.川渝地区煤的石墨化潜势研究[J].煤田地质与勘探,2022,50(2):9−16. doi: 10.12363/issn.1001-1986.21.02.0095
引用本文: 李靖,王路,刘永旺,等.川渝地区煤的石墨化潜势研究[J].煤田地质与勘探,2022,50(2):9−16. doi: 10.12363/issn.1001-1986.21.02.0095
LI Jing,WANG Lu,LIU Yongwang,et al.Research on the graphitization potential of coal in Sichuan and Chongqing[J].Coal Geology & Exploration,2022,50(2):9−16. doi: 10.12363/issn.1001-1986.21.02.0095
Citation: LI Jing,WANG Lu,LIU Yongwang,et al.Research on the graphitization potential of coal in Sichuan and Chongqing[J].Coal Geology & Exploration,2022,50(2):9−16. doi: 10.12363/issn.1001-1986.21.02.0095

川渝地区煤的石墨化潜势研究

doi: 10.12363/issn.1001-1986.21.02.0095
基金项目: 重庆市科研机构绩效激励引导专项项目(cstc2020jxjl90002);2020年度山西省高等学校科技创新项目(2020L0730);山西省科技重大专项资助项目(20191102002)
详细信息
    第一作者:

    李靖,1983年生,女,山西太原人,博士,副教授,从事能源地质方向的研究工作. E-mail: cat03510431@163.com

    通信作者:

    王路,1990年生,男,山西长治人,博士,讲师,从事煤系石墨矿产地质与开发利用研究工作. E-mail:wanglucumtb@126.com

  • 中图分类号: P618.11;P619.25+2

Research on the graphitization potential of coal in Sichuan and Chongqing

  • 摘要: 煤及煤系石墨化利用对于增强石墨矿产的战略保障能力、促进煤系矿产资源高效利用和推动煤炭企业转型升级等均具有重要意义。在能源矿产改革转型的关键时期,为了厘清川渝地区煤的石墨化潜势,在梳理分析煤的石墨化、煤基碳材料前驱体选择和川渝地区煤田地质概况的基础上,通过对川渝地区主要赋存煤类、煤质和显微组分特征的分析,从影响煤石墨化的内在因素和煤基碳材料的需求出发,采用主成分分析法探讨了川渝地区煤基碳材料前景和煤系石墨资源赋存潜力。结果表明:研究区煤的显微组分以镜质组为主,低灰、低硫,演化程度更高的无烟煤更易于石墨化,煤石墨化后的产物则是制备碳材料的极佳前驱体;根据主成分分析的定量评价结果,可将川渝地区煤系石墨资源潜力区带划分为Ⅰ级优势区、Ⅱ级良好区和Ⅲ级潜力区。四川雅安−攀西Ⅰ级区带三叠系上统须家河组煤具有变质程度高、低灰、低硫特征,龙门山构造岩浆带是煤石墨化的外在条件,是煤系石墨矿产资源优势赋存区和制备煤基碳材料的优选资源;渝东北Ⅱ级区带和渝东南Ⅱ级区带具有构造条件复杂、煤演化程度高的特点,为煤系石墨资源赋存良好区;南桐松藻Ⅲ级区带和四川芙蓉−古叙Ⅲ级区带则为煤系石墨资源的潜力区。煤系石墨的潜力研究是能源矿产由粗放型利用向高端新型材料精细化应用转变的重要桥梁,为实现煤炭资源高价值、绿色开发利用提供了指导方向。

     

  • 图  川渝地区无烟煤分布(蓝色部分为无烟煤分布区)

    Fig. 1  Distribution of anthracite(blue color) in Sichuan and Chongqing

    图  川渝地区煤基碳材料潜力区带划分

    Fig. 2  Potential areas division of coal-based carbon materials in Sichuan and Chongqing

    表  1  煤系石墨鉴别指标体系 [14]

    Table  1  Identification indexes of coal-based graphite[14]

    类型基础指标精确指标
    $\omega $(Vdaf)/%Rmax/%d002/nmgG峰位/cm−1R2
    煤系石墨石墨<4.0>6.5 <0.338>0.7<1 585<0.50
    半石墨0.338~0.344>0~0.71 585~1 5950.50~0.60
    >2.0<7.0>0.344≤0>1 595>0.60
    下载: 导出CSV

    表  2  川渝地区煤基碳材料前驱体评价参数

    Table  2  Evaluation indexes of precursors for coal-based graphite in Sichuan and Chongqing

    地区地层矿区Rmax/%灰分/%硫/%镜质组/%惰质组/%固定碳/%
    重庆P3l南桐松藻2.3225.024.8083.06.881.45
    渝东北2.2611.708.6778.210.186.47
    渝东南2.1917.206.4480.36.783.31
    华蓥山1.4522.134.3870.816.988.44
    永荣1.2324.985.8475.29.285.41
    渝东1.8828.154.2972.35.872.96
    四川P3l筠连2.8222.252.7158.723.886.54
    芙蓉2.5423.313.4581.46.387.01
    古叙2.6626.830.8776.513.885.72
    华蓥山1.5826.234.1769.523.883.05
    四川T3xj隆泸1.2427.92.5161.423.381.66
    达竹1.1819.450.6958.927.879.64
    广旺1.3124.331.6875.811.573.15
    资威1.1622.761.3552.824.272.32
    雅荥1.6028.950.5978.110.285.98
    宝鼎1.7524.20.4468.528.188.19
    红坭1.2221.620.5371.215.183.84
    盐源1.6925.441.0280.211.282.05
    川中1.3721.671.2658.522.982.36
    天全5.3519.320.6680.117.389.62
    下载: 导出CSV

    表  3  参数值的特征值和方差贡献率

    Table  3  Latent roots and variance contributes of evaluation indexes

    主成分初始特征值及方差贡献率
    特征值方差贡献率%累积%
    12.47941.31141.311
    21.38623.09764.409
    31.04617.42881.837
    下载: 导出CSV

    表  4  主成分载荷值

    Table  4  Component matrix

    评价参数主成分
    123
    反射率0.2070.4610.269
    固定碳含量0.1860.519−0.136
    灰分含量−0.204−0.0700.704
    镜质组含量0.361−0.0500.292
    惰质组含量−0.3100.355−0.344
    硫分含量0.241−0.325−0.408
    下载: 导出CSV

    表  5  主成分分析法评价结果

    Table  5  Optimization results of favorable areas by principal component analysis

    地区地层矿区FAC1_1FAC2_1FAC3_1FAC综合得
    分排序
    重庆P3l南桐松藻1.03−0.730.6521.555
    渝东北1.80−0.42−2.3223.452
    渝东南1.44−0.71−0.8922.723
    华蓥山0.270.20−0.9520.6610
    永荣0.63−0.84−0.3120.898
    渝东0.06−1.770.9718.2114
    四川P3l筠连−0.841.140.4617.0817
    芙蓉0.880.041.5121.964
    古叙0.240.751.0320.927
    华蓥山−0.420.01−0.5317.9215
    T3xj隆泸−1.08−0.06−0.3016.6019
    达竹−1.290.29−1.4016.6918
    广旺−0.26−1.360.5918.4313
    资威−2.09−0.860.3513.0720
    雅荥0.110.101.2920.996
    宝鼎−0.711.37−0.4718.9212
    红坭−0.230.07−0.2120.1911
    盐源0.22−0.240.8820.799
    川中−1.000.32−1.0017.5516
    天全1.242.710.6423.601
    下载: 导出CSV
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  • 收稿日期:  2021-02-20
  • 修回日期:  2021-10-14
  • 发布日期:  2022-02-01
  • 网络出版日期:  2022-02-14

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