低阶煤分级利用技术研究综述  

Research Review on Low-rank Coal Cascade Utilization Technology

作　　者：虞育杰[1] 姜红丽 龚徳鸿 钱进[1] 李环[1] YU Yujie;JIANG Hongli;GONG Dehong;QIAN Jin;LI Huan(Electrical Engineering College,Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025

出　　处：《广东电力》2018年第3期9-14,共6页Guangdong Electric Power

基　　金：贵州大学引进人才科研资助项目(贵大人基合字(2016)06号)

摘　　要：低阶煤分级利用技术可通过热解、气化、燃烧和合成等工艺,将低阶煤转化为半焦、焦油和煤气产品,其中半焦可用于燃烧发电供热,生成的灰渣可用于水泥建材行业,焦油加氢裂解可生成液体燃料替代石油产品,煤气加工后可用于生产、生活燃气替代天然气等,实现真正意义上的油-气-电-化-热一体化。目前,低阶煤的分级利用技术包含低阶煤完全气化、部分气化分级利用技术和低阶煤热解分级利用技术,通过对三类技术的实现路径和方法的分析认为:低阶煤将是今后我国能源的主要开发利用方向;低阶煤分级利用技术由于集节能、环保、经济于一身的优点,为我国煤炭资源的高效利用开辟了新的路子;低阶煤热解分级利用技术因工艺简单、反应要求低、能效高、污染少等优势将成为今后实现规模化产业应用的重点,发展前景非常可观。Low-rank coal cascade utilization technology can transform low-rank coals into semi-coke,tar and petroleum products by means of pyrolysis,gasification,combustion and synthesis,and so on.The semi-coke can be used for combustion electricity production and heat supply while the generated ashes can be used in cement building material industries.Tar hydrogenation cracking can generate alternative liquid fuel oil products and the gas after processing can be used as production gas and life gas replacing natural gas.Thus,it is able to realize real oil-gas-electricity-chemistry-heat integration.At present,low-rank coal cascade utilization technologies include complete gasification cascade utilization technology,partial gasification cascade utilization technology and low-rank coal pyrolysis cascade utilization technology,by analyzing realization methods for these three kinds of technologies,research considers low-rank coal is the main development and utilization of energy in our country in the future.Meanwhile,due to advantages of energy saving,environmental protection and economy,the low-rank coal cascade utilization technology can open up a new way for high effective utilization of coal resources in our country.In addition,because of its superiorities such as simple technique,low reaction requirement,high energy efficiency,low pollution level,and so on,the low-rank coal cascade utilization technology will be the emphasis of realizing large scale industrial application in the future and has significant development prospect.

关 键 词：低阶煤 分级利用 气化 热解 

分 类 号：TK019[动力工程及工程热物理]