回转窑低阶煤热解提质工艺及应用技术研究进展  

Research Progress on Upgrading Technologies and Applications of Low-rank Coal Pyrolysis in a Rotary Kiln

作　　者：杨远平 黄云[2] 宋民航 李刚 施鹏宇 李水清[4] YANG Yuanping;HUANG Yun;SONG Minhang;LI Gang;SHI Pengyu;LI Shuiqing(School of Mechanical Engineering,Beijing Institute of Petrochemical Technology,Daxing District,Beijing 102617,China;State Key Laboratory of Multiphase Complex Systems(Institute of Process Engineering,Chinese Academy of Sciences),Haidian District,Beijing 100190,China;Jiangsu Pengfei Group Co.,Ltd.,Nantong 226623,Jiangsu Province,China;Key Laboratory for Thermal Science and Power Engineering of Ministry of Education(Department of Energy and Power Engineering,Tsinghua University),Haidian District,Beijing 100084,China)

机构地区：[1]北京石油化工学院机械工程学院,北京市大兴区102617 [2]多相复杂系统国家重点实验室(中国科学院过程工程研究所),北京市海淀区100190 [3]江苏鹏飞集团股份有限公司,江苏省南通市226623 [4]热科学与动力工程教育部重点实验室(清华大学能源与动力工程系),北京市海淀区100084

出　　处：《中国电机工程学报》2025年第6期2251-2263,I0018,共14页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：江苏省碳达峰碳中和科技创新专项资金项目(BA2022203)。

摘　　要：“双碳”战略的启动,将加速推动煤炭行业,尤其是低阶煤产业的转型升级,促进低阶煤走向资源利用效率高、创新能力强、智能水平高、低碳可持续发展之路。在此背景下,回转窑因其原料适应广、操作连续灵活、产品优质及工艺可大型化等优势广泛应用于煤热解。为阐明回转窑低阶煤热解技术发展现状及前景,该文总结现有回转窑低阶煤热解技术和工艺特点,归纳影响热解产物产率和质量的主要因素。随后,从模型建立及理论分析方面,总结回转窑内物料输运、破碎机制及传热机理。最后,归纳对比现有回转窑低阶煤提质应用技术,分析现阶段回转窑低阶煤热解技术面临的主要瓶颈与挑战,对未来低阶煤热解研究热点和发展方向进行展望,以期为回转窑低阶煤热解工艺的优化及绿色高效规模化发展提供一定参考。The promotion of a carbon-neutral power system necessitates the development of efficient,innovative,intelligent,and low-carbon technologies.One crucial aspect in achieving this goal is the upgrading of the low-rank coal industry.The rotary kiln technology emerges as a highly promising solution for low-rank coal pyrolysis,owing to its remarkable adaptability to various raw materials,flexibility,and scalability.To shed light on the current state and future prospects of low-rank coal pyrolysis in rotary kilns,we first summarize the characteristics of existing technologies.And the main factors that influence the yield and quality of products during the pyrolysis process are identified.This paper further delves into the theoretical aspects by providing insights into material transport,crushing mechanisms,and heat transfer mechanisms within the rotary kiln.Additionally,the various techniques employed for upgrading low-rank coal in rotary kilns are analyzed.Then,main bottlenecks and challenges that hinder the development of low-rank coal pyrolysis in rotary kilns are concluded.Based on these analyses and summaries,we propose a forward-looking perspective on the research focus areas and development directions for low-rank coal pyrolysis.Our aim is to provide technological guidance for the large-scale development of low-rank coal pyrolysis technology.

关 键 词：回转窑 低阶煤热解工艺 机理模型 传热机理 智能管控 

分 类 号：TQ530[化学工程—煤化学工程]