煤气化灰渣综合利用研究进展  

Research progress of comprehensive utilization of coal gasification ash

作　　者：吴彬 刘春 WU Bin;LIU Chun(Taoyuan Coal Mine,Huaibei Mining Group Co.,Ltd.,Suzhou 234000,China;College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]淮北矿业集团公司桃园煤矿,安徽宿州234000 [2]西安科技大学安全科学与工程学院,陕西西安710054

出　　处：《陕西煤炭》2024年第3期104-108,共5页Shaanxi Coal

摘　　要：煤气化工艺是实现煤炭清洁利用有效途径,由于煤气化技术还在不断的发展过程中以及装备性能差,煤气化过程中也产生了大量的煤气化灰渣等固体废弃物。介绍煤气化灰渣的来源和带来的环境问题,分析煤气化灰渣的成分和矿物组成;对比分析煤气化灰渣活化的3种方法(机械、水热和碱熔融活化)之间的差别;综述煤气化灰渣资源化利用的研究现状,主要在建筑材料(水泥骨料、添加剂)、橡胶和塑料填料、生态修复(土壤、水体)、组分提取利用(残碳、硅、铝)、制备孔材料(活性炭、沸石、碳硅复合材料)等方面进行总结概述,对存在的问题和利用趋势分别进行分析和展望。Coal gasification process is an effective way to realize clean utilization of coal.Due to the still continuous development of coal gasification technology and poor equipment performance,a large amount of solid wastes such as coal gasification ash and slag are also produced in the process of coal gasification.We introduce the source and environmental problems of coal gasification ash,and analyze the composition and mineral composition of coal gasification ash.The differences among the three methods of coal gasification ash activation(mechanical,hydrothermal and alkali fusion activation)are compared and analyzed.The research status of resource utilization of coal gasification ash is reviewed,mainly in the aspects of building materials(cement aggregate,additives),rubber and plastic fillers,ecological restoration(soil,water),component extraction and utilization(residual carbon,silicon,aluminum),preparation of pore materials(activated carbon,zeolite,carbon-silicon composite material).The existing problems and utilization trends are analyzed and prospected,respectively.

关 键 词：煤气化灰渣 资源化利用 介孔材料 吸附材料 组分提取 

分 类 号：TD984[矿业工程—选矿]