Research on the graphitization potential of coal in Sichuan and Chongqing

Authors

LI Jing, Shanxi Institute of Energy, Jinzhong 030600, ChinaFollow
WANG Lu, Shanxi Institute of Energy, Jinzhong 030600, ChinaFollow
LIU Yongwang, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China
LUAN Jinhua, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China
ZHANG Ruigang, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China
ZHANG Sen, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China
WANG Anmin, School of Geosciences and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China

Abstract

The graphitization of coal is beneficial to enhancing the strategic guarantee ability of graphite resources and promoting the efficient utilization of coal measures mineral resources and transformation and upgrading of coal enterprises. The development potential of coal-based graphite resources in Sichuan and Chongqing is evaluated in the critical period of energy and mineral reform and transformation. On the basis of the analysis of coal graphitization, the precursors for coal-based carbon materials and coalfield geology, the major coal types, coal quality and characteristics of macerals, Principal Component Analysis(PCA) is applied to explore the development potential of coal-based graphite in Sichuan and Chongqing in view of internal factors and the requirement of carbon materials. The results show that the microscopic composition of the coal in the study area is mainly vitrinite with low ash and low sulfur, the highly metamorphic anthracite is easier to graphitize, and the product is an excellent precursor for preparing carbon materials. According to the quantitative evaluation results of PCA, the potential zones for preparing coal-based carbon materials can be divided into the superior areas(Ⅰ), good areas(Ⅱ) and potential areas(Ⅲ). The coal of Upper Triassic Xujiahe Formation in Ya’an-Panxi areas(I), Sichuan Province, is characterized by the high metamorphism, low ash and low sulfur. The Longmenshan tectonic-magmatic belt is the external factor for coal graphitization, which is the potential area for coal-based graphite sources and preferred resources for coal-based carbon materials. The northeastern and southeastern Chongqing areas(Ⅱ) are characterized by complex tectonic conditions and highly metamorphic coal, which are good areas for the accumulation of coal-based graphite. Songzao Coal Mine(Ⅲ) in Nantong Coalfield and Furong-Guxu mines(Ⅲ) in Sichuan Province, are all potential areas for coal-based graphite. Research on the potential of coal-based graphite is an important bridge for the transition from extensive utilization of energy and minerals to refined application of high-end new materials, providing guidance for the realization of high-value, green development and utilization of coal-resources.

Keywords

coal-based graphite, mineral resources in coal measures, graphitization, principal component analysis

DOI

10.12363/issn.1001-1986.21.02.0095

Recommended Citation

LI Jing, WANG Lu, LIU Yongwang, et al. (2022) "Research on the graphitization potential of coal in Sichuan and Chongqing," Coal Geology & Exploration: Vol. 50: Iss. 2, Article 3.
DOI: 10.12363/issn.1001-1986.21.02.0095
Available at: https://cge.researchcommons.org/journal/vol50/iss2/3

Reference

[1] 曹代勇,王路,刘志飞,等. 我国煤系石墨研究及资源开发利用前景[J]. 煤田地质与勘探,2020,48(1):1−11. CAO Daiyong,WANG Lu,LIU Zhifei,et al. The research status and prospect of coal−based graphite in China[J]. Coal Geology & Exploration,2020,48(1):1−11.

[2] 曹代勇,张鹤,董业绩,等. 煤系石墨矿产地质研究现状与重点方向[J]. 地学前缘,2017,24(5):317−327. CAO Daiyong,ZHANG He,DONG Yeji,et al. Research status and key orientation of coal−based graphite mineral geology[J]. Earth Science Frontiers,2017,24(5):317−327.

[3] 王路,董业绩,张鹤,等. 煤成石墨化作用的影响因素及其实验验证[J]. 矿业科学学报,2018,3(1):9−19. WANG Lu,DONG Yeji,ZHANG He,et al. Factors affecting graphitization of coal and the experimental validation[J]. Journal of Mining Science and Technology,2018,3(1):9−19.

[4] 王路,彭扬文,曹代勇,等. 湖南鲁塘煤系石墨矿区构造格局及控矿机制[J]. 煤田地质与勘探,2020,48(1):48−54. WANG Lu,PENG Yangwen,CAO Daiyong,et al. The tectonic framework and controlling mechanism of coal−based graphite in Lutang mining area, Hunan Province[J]. Coal Geology & Exploration,2020,48(1):48−54.

[5] 闫云飞,高伟,杨仲卿,等. 煤基新材料–煤基石墨烯的制备及石墨烯在导热领域应用研究进展[J]. 煤炭学报,2020,45(1):443−454. YAN Yunfei,GAO Wei,YANG Zhongqing,et al. Preparation of coal−based graphene and application research advances of graphene in the field of thermal conduction[J]. Journal of China Coal Society,2020,45(1):443−454.

[6] WANG Lu，QIN Rongfang，LI Yu，et al. On the difference of graphitization behavior between vitrinite−and inertinite−rich anthracites during heat treatment[J]. Energy Sources，Part A：Recovery，Utilization，and Environment Effects，2019. DOI：10.1080/15567036.2019.1656681.

[7] 张亚婷,周安宁,张晓欠,等. 以太西无烟煤为前驱体制备煤基石墨烯的研究[J]. 煤炭转化,2013,36(4):57−61. ZHANG Yating,ZHOU Anning,ZHANG Xiaoqian,et al. Preparation of the graphene from Taixi anthracite[J]. Coal Conversion,2013,36(4):57−61.

[8] 华小虎,王晓刚. 无烟煤超高温石墨化产物的物相分析[J]. 煤炭技术,2016,35(11):308−310. HUA Xiaohu,WANG Xiaogang. Phase analysis of anthracite−graphitization−product by ultra−high temperature[J]. Coal Geology,2016,35(11):308−310.

[9] WANG Lu,CAO Daiyong,PENG Yangwen,et al. Strain–induced graphitization mechanism of coal−based graphite from Luang,Hunan Province,China[J]. Minerals,2019,9(10):617.

[10] 李阔,刘钦甫,宋波涛,等. 湖南新化煤系石墨结构演化及其热反应行为[J]. 煤田地质与勘探,2020,48(1):42−47. LI Kuo,LIU Qinfu,SONG Botao,et al. Investigation on structural evolution and thermal reaction of coal–based graphite from Xinhua County, Hunan Province[J]. Coal Geology & Exploration,2020,48(1):42−47.

[11] 李焕同,曹代勇,张卫国,等. 高煤级煤石墨化轨迹阶段性的XRD和Raman光谱表征[J]. 光谱学与光谱分析,2021,41(8):2491−2498. LI Huantong,CAO Daiyong,ZHANG Weiguo,et al. XRD and Raman spectroscopy characterization of graphitization trajectories of high−rank coal[J]. Spectroscopy and Spectral Analysis,2021,41(8):2491−2498.

[12] 丁正云,王路,曾欢,等. 福建大田–漳平地区构造–热对煤系石墨成矿及赋存的控制探讨[J]. 煤田地质与勘探,2020,48(1):55−61. DING Zhengyun,WANG Lu,ZENG Huan,et al. The control of mineralization and occurrence of coal−based graphite by tectonic−heat in Zhangping−Datian area,Fujian[J]. Coal Geology & Exploration,2020,48(1):55−61.

[13] 王路,曹代勇,丁正云,等. 闽西南地区煤成石墨的控制因素与成矿区带划分[J]. 煤炭学报,2020,45(8):2865−2871. WANG Lu,CAO Daiyong,DING Zhengyun,et al. Controlling factors and metallogenic belts of coal−based graphite in the south−western Fujian Province[J]. Journal of China Coal Society,2020,45(8):2865−2871.

[14] 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. CAO Daiyong,WEI Yingchun,LI Yang,et al. Determination of identification index and construction of classification and classification system of coal measures graphite[J]. Journal of China Coal Society,2021,46(6):1833−1846.

[15] 秦勇. 中国高煤级煤的显微岩石学特征及结构演化[M]. 徐州：中国矿业大学出版社，1994.

[16] 李久庆,秦勇,陈义林,等. 我国煤基石墨资源与制烯潜力[J]. 煤炭科学技术,2020,48(增刊1):261−269. LI Jiuqing,QIN Yong,CHEN Yilin,et al. Coal−based graphite resources and its graphene preparation potential in China[J]. Coal Science and Technology,2020,48(Sup.1):261−269.

[17] 李瑞青,唐跃刚,郇璇,等. 煤基石墨烯原料与制备技术研究进展[J]. 煤田地质与勘探,2020,48(5):1−15. LI Ruiqing,TANG Yuegang,HUAN Xuan,et al. Progress in the research on the raw materials and the preparation techniques of coal−based graphene[J]. Coal Geology & Exploration,2020,48(5):1−15.

[18] 王路. 煤系石墨的构造—热成矿机制研究[D]. 北京：中国矿业大学(北京)，2020.

WANG Lu. Study on tectonic–thermal mineralization mechanism of coal−based graphite[D]. Beijing：China University of Mining and Technology(Beijing)，2020.

[19] 董业绩,曹代勇,王路,等. 地质勘查阶段煤系石墨与无烟煤的划分指标探究[J]. 煤田地质与勘探,2018,46(1):8−12. DONG Yeji,CAO Daiyong,WANG Lu,et al. Indicators for partitioning graphite and anthracite in coal measures during geological exploration phase[J]. Coal Geology & Exploration,2018,46(1):8−12.

[20] FRANKLIN R E. Crystallite growth in graphitizing and non–graphitizing carbons[J]. Proceedings of the Royal Society A Mathematical, Physical & Engineering Sciences,1951,209:196−218.

[21] XING Baolin,ZENG Huihui,HUANG Guangxu,et al. Porous graphene prepared from anthracite as high performance anode materials for lithium−ion battery applications[J]. Journal of Alloys and Compounds,2019,779:202−211.

[22] WILKS K R,MASTALERZ M,BUSTIN R M,et al. The role of shear strain in the graphitization of a high−volatile bituminous and an anthracitic coal[J]. International Journal of Coal Geology,1993,22:247−277.

[23] RODRIGUES S,SUAREZ–RUIZ I,MARQUES M,et al. Catalytic role of mineral matter in structural transformation of anthracites during high temperature treatment[J]. International Journal of Coal Geology,2012,93:49−55.

[24] KWIECIŃSKA B,PETERSEN H I. Graphite,semi−graphite,natural coke,and natural char classification−ICCP system[J]. International Journal of Coal Geology,2004,57(2):99−116.

[25] OBERLIN A. Carbonization and graphitization[J]. Carbon,1984,22(6):521−541.

[26] VIJAPUR S H,WANG Dan,INGRAM D C,et al. An investigation of growth mechanism of coal derived graphene films[J]. Materials Today Communications,2017,11:147−155.

[27] LI Dan,KANER R B. Graphene−based materials[J]. Materials Science,2008,320(5880):1170−1171.

[28] 曾会会. 煤基石墨烯及其复合材料的制备与电化学性能研究[D]. 焦作：河南理工大学，2018.

ZENG Huihui. Preparation and electrochemical properties of coal−based graphene and its composites[D]. Jiaozuo：Henan Polytechnic University，2018.

[29] HUAN Xuan,TANG Yuegang,XU Jingjie,et al. Structural characterization of graphenic material prepared from anthracites of different characteristics:A comparative analysis[J]. Fuel Processing Technology,2019,183:8−18.

[30] 梁万林,魏文金,陈忠恕,等. 四川省赋煤构造单元划分及构造控煤作用分析[J]. 中国煤炭地质,2013,25(6):1−5. LIANG Wanlin,WEI Wenjin,CHEN Zhongshu,et al. Coal hosting structural element partition and structural coal control analysis in Sichuan Province[J]. Coal Geology of China,2013,25(6):1−5.

[31] 李产林. 四川晚三叠世煤变质问题的研究[J]. 现代地质,1990,4(2):98−104. LI Chanlin. Research on coal metamorphism of the late Triassic in Sichuan[J]. Geoscience,1990,4(2):98−104.