富油煤煤质特征与原位热解技术开发利用现状  

Research status on coal quality characteristics and in development of situpyrolysis technology of tar-rich coal

作　　者：朱士飞[1,2] 刘威 张静 秦云虎[1,2] 毛礼鑫[1,2] ZHU Shifei;LIU Wei;ZHANG Jing;QIN Yunhu;MAO Lixin(Jiangsu Design Institute of Geology for Mineral Resources,Xuzhou 221006,China;CNACG Key Laboratory of Mineral Resource in Coal Measures,Xuzhou 221006,China)

机构地区：[1]江苏地质矿产设计研究院,江苏徐州221006 [2]中国煤炭地质总局煤系矿产资源重点实验室,江苏徐州221006

出　　处：《煤质技术》2024年第6期23-33,共11页Coal Quality Technology

基　　金：中国地质调查局地质调查基金资助二级项目(DD20160187);徐州市政策引导类计划专项基金资助项目(KC23120);徐州市基础研究计划专项基金资助项目(KC23073)。

摘　　要：富油煤是保障我国油气资源供给的重要战略资源,充分利用富油煤的油气属性可拓展煤炭的利用方式,有助于减少煤炭直接燃烧利用所带来的环境问题,尤其通过富油煤原位热解技术还可以促进深部煤炭资源的有效利用。以我国富油煤分布特点为基础,分析富油煤的煤岩组成、煤质特征及其对焦油产率的影响,并总结富油煤原位热解技术的开发利用现状。由现有勘探实践表明,我国富油煤资源丰富,其形成和分布受控于构造演化、古气候、沉积环境以及成煤物质来源等因素;大量的测试分析显示,富油煤的焦油产率与煤成因类型、变质程度、煤岩组成、煤质特征有关;富油煤原位热解开发利用是煤炭清洁高效利用的重要途径之一,针对油页岩等其他地质资源开发利用的技术对富油煤适用性有限。为实现富油煤中潜在“油-气”资源的低碳化开发利用,仍需在富油煤资源精细勘查与评价技术、富油煤原位加热与地下体系封闭技术、富油煤中低温热解与热解油气高效抽采技术以及全工艺流程的施工、监测与评估技术等方面加强研究。The tar-rich coal is important strategic resources to ensure the supply of oil and gas resources in China,utilizing of rich oil coal with the oil and gas properties fully can expand the utilization of coal and reduce environmental problems caused by direct combustion and utilization of coal.The in-situ pyrolysis technology of rich oil coal can promote the effective utilization of deep coal resources.Based on the distribution characteristics of tar-rich coal in China,the paper analyzes the characteristics of coal petrology,coal property and their influence on tar yield,and summarizes the in-situ pyrolysis technology of tar-rich coal.The exploration practice shows that China has abundant tar-rich coal resources,whose formation and distribution are controlled by tectonic evolution,paleoclimate,coal-forming environment and sources of coal-forming materials.A large number of tests and analyses show that coal tar yield is related to the genetic type,metamorphism degree,coal macerals and coal quality characteristics.The in-situ pyrolysis technology of tar-rich coal is one of the important ways of clean and efficient utilization of coal.The technology for the exploitation and utilization of other geological resources such as oil shale has limited applicability to tar-rich coal.In order to realize the low-carbon utilization of potential“oil-gas”resources in tar-rich coal,it is still necessary to strengthen the research on tar-rich coal resource fine exploration and evaluation technology,tar-rich coal in-situ heating and underground system sealing technology,low-temperature pyrolysis of tar-rich coal and efficient extraction technology of pyrolysis oil and gas,as well as the construction,monitoring and evaluation technology of the whole process.

关 键 词：富油煤 煤质特征 煤岩组成 焦油产率 原位热解技术 地下体系封闭技术 沉积环境 

分 类 号：P618.11[天文地球—矿床学]