Role of alkali sodium on the catalytic performance of red mud during coal pyrolysis
文献类型：期刊论文
| 作者 | Wang, Deliang1,2; Wang, Demin1,2; Yu, Jian1; Chen, Zhaohui1; Li, Yunjia1,2; Gao, Shiqiu1 |
| 刊名 | FUEL PROCESSING TECHNOLOGY
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 186页码:81-87 |
| 关键词 | Catalytic pyrolysis Coal Red mud Sodium Tar upgrading |
| ISSN号 | 0378-3820 |
| DOI | 10.1016/j.fuproc.2018.12.023 |
| 英文摘要 | Red mud (RM) as large quantity of industrial wastes could serve as a low-cost catalyst for catalytic upgrading of coal pyrolysis volatiles. However, the catalytic performance of raw RM for improving the quality of tar was limited because of its composition and structure. In this paper, the RM-based catalyst (RMC) for coal pyrolysis was prepared by using acid-alkali treatment. It was found that changing sodium content could modify the characteristics of RMC. The BET and NH3-TPD showed that the surface area and acid strength of RMC increased evidently with the reduction of sodium content. The pyrolysis characteristics of samples by mix shaping of coal and RMC with different sodium contents were evaluated in a fixed-bed reactor. The addition of RMC into coal could upgrade tar quality, thus increasing the yield of light tar (boiling point < 360 degrees C) and decreasing the yield of heavy tar. The content of sodium in the RMC had a great influence on product distribution of coal catalytic pyrolysis. The low-content sodium with high concentration acids contributed to the formation of coke. Whereas, with the increase of sodium content in RMC, coking was suppressed but more gaseous products were produced. After adding 4 wt% RMC with sodium content of 3.2 wt% into coal, the yield of light tar increased to 7.7 wt% and the light fraction in tar was as high as 74%, much higher than those from coal pyrolysis without catalyst. |
| WOS关键词 | HIGH-QUALITY TAR ; LIGNITE ; GASIFICATION ; CRACKING ; VAPORS ; BED ; PRODUCTS ; VOLATILE ; BEHAVIOR ; WASTE |
| 资助项目 | National Key Research and Development Program of China[2016YFB0600304] ; National Natural Science Foundation of China[21878310] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000458225800009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27912]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Zhaohui; Gao, Shiqiu |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Deliang,Wang, Demin,Yu, Jian,et al. Role of alkali sodium on the catalytic performance of red mud during coal pyrolysis[J]. FUEL PROCESSING TECHNOLOGY,2019,186:81-87. |
| APA | Wang, Deliang,Wang, Demin,Yu, Jian,Chen, Zhaohui,Li, Yunjia,&Gao, Shiqiu.(2019).Role of alkali sodium on the catalytic performance of red mud during coal pyrolysis.FUEL PROCESSING TECHNOLOGY,186,81-87. |
| MLA | Wang, Deliang,et al."Role of alkali sodium on the catalytic performance of red mud during coal pyrolysis".FUEL PROCESSING TECHNOLOGY 186(2019):81-87. |
入库方式： OAI收割
来源：过程工程研究所
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