摘要
侏罗纪烟煤是一种理想的动力用煤和化工原料,但由于其惰质组含量高(多数>35%),严重制约了侏罗纪煤的转化利用效率,并且由此产生严重的资源浪费和环境污染。煤炭精细加工与分质转化是提高侏罗纪烟煤转化效率与产品质量、减少废渣与二氧化碳排放的重要举措。针对该煤精细加工(煤岩组分分离富集)中存在的问题,从煤岩组分的表面结构和性质、选择性解离、常规分离富集方法等方面综述了近年的研究进展,分析了主要煤岩组分之间的表面结构和性质差异、最佳解离粒度的选择、常规分离富集方法的局限性,指出了基于油泡表面性质调控的油泡浮选方法可能成为煤岩组分高效分离富集的新方法。
Jurassic bituminous coal is an ideal power coal and chemical raw material.However,due to its high content of inertinite in that coal(mostly>35%),the conversion and utilization efficiency of that coal was constrained severely,and the waste of resources and environmental pollution was caused seriously.Fine processing and qualitative conversion of coals are important measures to improve the conversion efficiency and product quality of Jurassic bituminous coal,and reduce emissions of waste residue and carbon dioxide.Aiming at the problems of separation and enrichment of coal macerals,advances in the surface structure and properties,selective liberation,conventional separation and enrichment methods of coal macerals were summarized in recent years.The differences of surface structure and properties between the vitrinite and inertinite,the selection of the optimal liberation granularity,and the limitations of conventional separation and enrichment methods were analyzed,respectively.Finally,it may be a new method for the efficient separation and enrichment of coal macerals that the oily bubble flotation based on the surface activity regulation of oily bubble is proposed.
作者
屈进州
李振
赵阳
赵伟
周安宁
周恺
任瑞晨
QU Jinzhou;LI Zhen;ZHAO Yang;ZHAO Wei;ZHOU Anning;ZHOU Kai;REN Ruichen(School of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China;Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Natural Resources, Xi’an 710021, Shaanxi, China;CHN Energy Shendong Coal Processing Centre, Shenmu 719315, Shaanxi, China;School of Mining Engineering, Liaoning Technical University, Fuxin 123000, Liaoning, China)
出处
《矿产保护与利用》
2021年第2期123-128,共6页
Conservation and Utilization of Mineral Resources
基金
国家自然科学基金(52004212)
陕西省自然科学基础研究计划(2019JQ-310)
霍英东教育基金会高等院校青年教师基金(171102)
2019年陕西省留学人员科技活动择优资助项目(14)
西安科技大学大学生创新创业训练计划项目(202010704139)。
关键词
侏罗纪烟煤
煤岩组分
重选
浮选
油泡浮选
jurassic bituminous coal
coal maceral
gravity separation
flotation
oily bubble flotation
作者简介
屈进州(1987-),男,甘肃天水人,博士(后),主要研究方向为低阶煤浮选提质,E-mail:qujinzhou@126.com;通信作者:李振(1983-),男,山东淄博人,博士(后),主要研究方向为煤炭提质/分质加工,E-mail:lizhenac@126.com。
