Performance of expanded perlite as granular bed filtration media: Effect on coal pyrolytic products
文献类型：期刊论文
| 作者 | Yang, Shuaiqiang1,3; Du, Lin1,3; Li, Songgeng1,3; Song, Wenli2,3 |
| 刊名 | JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 166页码:9 |
| ISSN号 | 0165-2370 |
| 关键词 | Granular bed filtration Perlite Regeneration Coal pyrolysis Redox cycle |
| DOI | 10.1016/j.jaap.2022.105617 |
| 英文摘要 | Granular bed filtration is considered one of the most promising engineering solutions to the dust removal from high temperature coal pyrolytic vapors. Expanded perlite as filtration media was studied in a lab-scale fixed bed reactor to understand its effect on pyrolysis products. Factors including filtration temperature, filtration time, dust accumulation and regeneration effect were investigated. The results show that there is around 12.9 % reduction in tar yield even under an optimized temperature of 550 degrees C after filtration bed. Dust accumulation would further promote tar cracking reactions. Coke deposition on the perlite increases with filtration time, which causes further reduction in tar yield. The redox cycle between filtration and regeneration significantly alters the properties of perlite. It is found that carbon deposition on perlite is alleviated in the initial cycles due to the formation of potassium carbonate. And the extent of tar cracking becomes weak. With the cycle numbers further increasing, the situation is inversed. Characterization techniques such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) were applied to explore the mechanisms behind the findings. Potassium and transition metals such as iron contained in perlite may make significant contributions. |
| WOS关键词 | CATALYTIC CRACKING ; CO2 GASIFICATION ; OXIDE-FILMS ; SEMI-COKE ; TAR ; OXIDATION ; CARBON ; FILTER ; DUST ; VOLATILES |
| 资助项目 | National Key Research and Development Program of China[2018YFB0605003] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000831084800004 |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54314]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Songgeng |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shuaiqiang,Du, Lin,Li, Songgeng,et al. Performance of expanded perlite as granular bed filtration media: Effect on coal pyrolytic products[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2022,166:9. |
| APA | Yang, Shuaiqiang,Du, Lin,Li, Songgeng,&Song, Wenli.(2022).Performance of expanded perlite as granular bed filtration media: Effect on coal pyrolytic products.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,166,9. |
| MLA | Yang, Shuaiqiang,et al."Performance of expanded perlite as granular bed filtration media: Effect on coal pyrolytic products".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 166(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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