Destruction of caking properties of bituminous coal by jetting pre-oxidation in a fluidized bed
文献类型：期刊论文
| 作者 | Zhao, Zhigang1,2; Zhang, Juwei1; Zhao, Feixiang1; Zeng, Xi1; Liu, Xiaoxing1; Xu, Guangwen1 |
| 刊名 | FUEL
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 133期号:1页码:45-51 |
| 关键词 | Caking propensity Caking destruction Fluidized bed gasification Coal Jetting pre-oxidation |
| ISSN号 | 0016-2361 |
| 其他题名 | Fuel |
| 中文摘要 | Jetting pre-oxidation was proposed to destroy the caking property of bituminous coal in a fluidized bed (FB) gasifier. By defining an index omega to characterize the degree or realized effect of caking destruction, experiments were conducted in an electrically heated laboratory FB reactor under different conditions to investigate the feasibility and required conditions for effectively destroying the caking propensity of a kind of bituminous coal. The tested major parameters were the equivalence air ratio (ER) of jetting gas and the temperature in the jetting zone. At relatively lower temperatures it was hard to completely destroy the caking propensity of the tested coal particles. Without oxygen inside the jetting gas, it was also impossible to fully destroy the caking propensity of the coal even at sufficiently high temperatures. Thus, oxidation of coal particles at suitably high temperatures was essential to the expected good destruction of their caking propensity. For the tested bituminous coal this was achieved at temperatures above 1000 degrees C in the jetting zone and an equivalent oxygen ratio above 0.1 for the jetting gas (up to 0.3 considering gasification applications). For coal pre-oxidation in a FB, the agglomeration state of char particles due to caking adherence in the reactor could be anticipated via the unsteady variations in the bed temperature and H-2/CO concentrations in the effluent gas with reaction time. (C) 2014 Elsevier Ltd. All rights reserved. |
| 英文摘要 | Jetting pre-oxidation was proposed to destroy the caking property of bituminous coal in a fluidized bed (FB) gasifier. By defining an index omega to characterize the degree or realized effect of caking destruction, experiments were conducted in an electrically heated laboratory FB reactor under different conditions to investigate the feasibility and required conditions for effectively destroying the caking propensity of a kind of bituminous coal. The tested major parameters were the equivalence air ratio (ER) of jetting gas and the temperature in the jetting zone. At relatively lower temperatures it was hard to completely destroy the caking propensity of the tested coal particles. Without oxygen inside the jetting gas, it was also impossible to fully destroy the caking propensity of the coal even at sufficiently high temperatures. Thus, oxidation of coal particles at suitably high temperatures was essential to the expected good destruction of their caking propensity. For the tested bituminous coal this was achieved at temperatures above 1000 degrees C in the jetting zone and an equivalent oxygen ratio above 0.1 for the jetting gas (up to 0.3 considering gasification applications). For coal pre-oxidation in a FB, the agglomeration state of char particles due to caking adherence in the reactor could be anticipated via the unsteady variations in the bed temperature and H-2/CO concentrations in the effluent gas with reaction time. (C) 2014 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Energy & Fuels ; Engineering, Chemical |
| 研究领域[WOS] | Energy & Fuels ; Engineering |
| 关键词[WOS] | FIXED-BED ; GASIFIER |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000338738900006 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11053]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Anhui Univ Technol, Anhui Key Lab Coal Clean Convers & Utilizat, Sch Chem & Chem Engn, Maanshan 243002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhigang,Zhang, Juwei,Zhao, Feixiang,et al. Destruction of caking properties of bituminous coal by jetting pre-oxidation in a fluidized bed[J]. FUEL,2014,133(1):45-51. |
| APA | Zhao, Zhigang,Zhang, Juwei,Zhao, Feixiang,Zeng, Xi,Liu, Xiaoxing,&Xu, Guangwen.(2014).Destruction of caking properties of bituminous coal by jetting pre-oxidation in a fluidized bed.FUEL,133(1),45-51. |
| MLA | Zhao, Zhigang,et al."Destruction of caking properties of bituminous coal by jetting pre-oxidation in a fluidized bed".FUEL 133.1(2014):45-51. |
入库方式： OAI收割
来源：过程工程研究所
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