Slagging Characteristics of Zhundong Coal during Circulating Fluidized Bed Gasification
文献类型：期刊论文
| 作者 | Song, Guoliang1; Qi, Xiaobin1,2; Song, Weijian1,2; Lu, Qinggang1 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 30期号:5页码:3967-3974 |
| 英文摘要 | Three types of Zhundong coal with different sodium contents-Shenhuazhundong coal (SHZD), Shaerhu coal (SEH), and Tianchimulei coal (TCML) were investigated to understand their slagging behaviors during circulating fluidized bed gasification (CFBG). Generally, the operational stability of Zhundong coal decreases with the rise of sodium content. Zhundong coal with low sodium content is suitable as a gasification fuel of a circulating fluidized bed. For high-sodium-content coal, agglomeration, and even defluidization, should be the focus. Agglomeration or defluidization could be alleviated or avoided by controlling the bed temperature. There is a one-to-one correspondence between temperature fluctuation and sodium content in bottom slags. Slagging is affected by sodium occurrence modes and some ash components (e.g., SiO2 and Fe2O3). Due to different contents of chemical components, especially chlorine, silicon, and sodium, the three types of Zhundong coal cause different problems. Chlorine and sodium in SEH, mainly existing as NaCl, play an important role in corroding metal walls. Microanalysis of agglomeration particles in the tests with TCML shows that the SiO2-to-Na2O ratio gradually increases from surfaces to the inner part, which confirms the effect of the Na2O-SiO2 reaction on the agglomeration. The SiO2 content in high alkali coal decisively impacts on the slagging morphology by the interaction between Na2O and SiO2 in coal itself for high-SiO2 coals or additional SiO2 from quartz sands for low-SiO2 coals. |
| 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] | LOW-RANK COAL ; HIGH-SODIUM ; ASH DEPOSITION ; ALKALI-METALS ; COMBUSTION ; LIGNITE ; TRANSFORMATION ; FURNACE ; DEFLUIDIZATION ; AGGLOMERATION |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000376417600046 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/112509]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Guoliang,Qi, Xiaobin,Song, Weijian,et al. Slagging Characteristics of Zhundong Coal during Circulating Fluidized Bed Gasification[J]. ENERGY & FUELS,2016,30(5):3967-3974. |
| APA | Song, Guoliang,Qi, Xiaobin,Song, Weijian,&Lu, Qinggang.(2016).Slagging Characteristics of Zhundong Coal during Circulating Fluidized Bed Gasification.ENERGY & FUELS,30(5),3967-3974. |
| MLA | Song, Guoliang,et al."Slagging Characteristics of Zhundong Coal during Circulating Fluidized Bed Gasification".ENERGY & FUELS 30.5(2016):3967-3974. |
入库方式： OAI收割
来源：工程热物理研究所
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