Knowledge Management System Of Institute of process engineering,CAS
| Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor | |
| Alternative Title | Fuel Process. Technol. |
| Xiong, Ran1; Dong, Li1; Yu, Jian1; Zhang, Xiaofang1,2; Jin, Ling1; Xu, Guangwen1 | |
| 2010-08-01 | |
| Source Publication | FUEL PROCESSING TECHNOLOGY
 |
| ISSN | 0378-3820 |
| Volume | 91Issue:8Pages:810-817 |
| Abstract | Coal topping gasification refers to a process that extracts the volatiles contained in coal into gas and tar rich in chemical structures in advance of gasification. The technology can be implemented in a reactor system coupling a fluidized bed pyrolyzer and a transport bed gasifier in which coal is first pyrolyzed in the fluidized bed before being forwarded into the transport bed for gasification. The present article is devoted to investigating the pyrolysis of lignite and bituminite in a fluidized bed reactor. The results showed that the highest tar yield appeared at 823 to 923 K for both coals. When coal ash from CFB boiler was used as the bed material, obvious decreases in the yields of tar and pyrolysis gas were observed. Pyrolysis in a reaction atmosphere simulating the pyrolysis gas composition of coal resulted in a higher production of tar. Under the conditions of using CFB boiler ash as the bed material and the simulated pyrolysis gas as the reaction atmosphere, the tar yields for pyrolytic topping in a fluidized bed reactor was about 11.4 wt.% for bituminite and 6.5 wt.% for lignite in dry ash-free coal base. (C) 2009 Elsevier B.V. All rights reserved.; Coal topping gasification refers to a process that extracts the volatiles contained in coal into gas and tar rich in chemical structures in advance of gasification. The technology can be implemented in a reactor system coupling a fluidized bed pyrolyzer and a transport bed gasifier in which coal is first pyrolyzed in the fluidized bed before being forwarded into the transport bed for gasification. The present article is devoted to investigating the pyrolysis of lignite and bituminite in a fluidized bed reactor. The results showed that the highest tar yield appeared at 823 to 923 K for both coals. When coal ash from CFB boiler was used as the bed material, obvious decreases in the yields of tar and pyrolysis gas were observed. Pyrolysis in a reaction atmosphere simulating the pyrolysis gas composition of coal resulted in a higher production of tar. Under the conditions of using CFB boiler ash as the bed material and the simulated pyrolysis gas as the reaction atmosphere, the tar yields for pyrolytic topping in a fluidized bed reactor was about 11.4 wt.% for bituminite and 6.5 wt.% for lignite in dry ash-free coal base. (C) 2009 Elsevier B.V. All rights reserved. |
| Keyword | Topping Gasification Pyrolysis Fluidized Bed Coal Ash Lignite Cfb Boiler |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1016/j.fuproc.2009.07.005 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | CHEMICAL-LOOPING COMBUSTION ; FLASH PYROLYSIS ; OXYGEN CARRIER ; HEATING RATES ; BROWN-COAL ; PRESSURE ; HYDROPYROLYSIS ; METHANE |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000279857400004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6350 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Aerosp WanYuan Coal Chem Engn Technol Co, Beijing 100176, Peoples R China |
| Recommended Citation GB/T 7714 | Xiong, Ran,Dong, Li,Yu, Jian,et al. Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor[J]. FUEL PROCESSING TECHNOLOGY,2010,91(8):810-817. |
| APA | Xiong, Ran,Dong, Li,Yu, Jian,Zhang, Xiaofang,Jin, Ling,&Xu, Guangwen.(2010).Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor.FUEL PROCESSING TECHNOLOGY,91(8),810-817. |
| MLA | Xiong, Ran,et al."Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor".FUEL PROCESSING TECHNOLOGY 91.8(2010):810-817. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Fundamentals of coal（1310KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment