The deactivation of co/sio2 catalyst for fischer-tropsch synthesis at different ratios of h-2 to co
文献类型：期刊论文
| 作者 | Zhou, Wei; Chen, Jian-Gang; Fang, Ke-Gong; Sun, Yu-Han |
| 刊名 | Fuel processing technology
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 87期号:7页码:609-616 |
| 关键词 | Fischer-tropsch synthesis H-2/co ratio Deactivation Cobalt silicates and/or hydrosilicates |
| ISSN号 | 0378-3820 |
| DOI | 10.1016/j.fuproc.2006.01.008 |
| 通讯作者 | Sun, yu-han(yhsun@sxicc.ac.cn) |
| 英文摘要 | The deactivation of co/sio2 catalyst for fischer-tropsch synthesis (fts) at different h-2/co ratios was investigated by xrd, ftir, bet, xps, tpr and h-2 chemisorption. it was found that the deactivation rate of the catalyst increased with the rise of the h-2/co ratio. the generation of silicates and/or hydrosilicates species was evidenced by tpr and xps, and their amounts were monotonously enhanced with increasing h-2/co ratio, which suggested that the deactivation was caused by the transformation of metallic cobalt into inactive silicates and the high partial pressure of h-2 facilitated the formation of the silicates. moreover, the percentage loss of the surface cobalt was larger than that of bulk cobalt, suggesting that the cobalt silicates and/or hydrosilicates species were formed mainly on the surface of the catalyst or in the small crystallites. for the catalyst run at h-2/co ratio of 1, it was observed that the sintering also contributed to the catalyst deactivation, but it was a less important factor for the deactivation. (c) 2006 elsevier b.v. all rights reserved. |
| WOS关键词 | PROMOTED CO/AL2O3 CATALYSTS ; COBALT CATALYSTS ; CO/ZRO2/SIO2 CATALYST ; WATER ; SELECTIVITY ; MECHANISM ; HYDROGENATION ; SUPPORT |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
| WOS类目 | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000238916800006 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378900 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Sun, Yu-Han |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Wei,Chen, Jian-Gang,Fang, Ke-Gong,et al. The deactivation of co/sio2 catalyst for fischer-tropsch synthesis at different ratios of h-2 to co[J]. Fuel processing technology,2006,87(7):609-616. |
| APA | Zhou, Wei,Chen, Jian-Gang,Fang, Ke-Gong,&Sun, Yu-Han.(2006).The deactivation of co/sio2 catalyst for fischer-tropsch synthesis at different ratios of h-2 to co.Fuel processing technology,87(7),609-616. |
| MLA | Zhou, Wei,et al."The deactivation of co/sio2 catalyst for fischer-tropsch synthesis at different ratios of h-2 to co".Fuel processing technology 87.7(2006):609-616. |
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来源：中国科学院大学
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