| Attrition-resistant Ni-Mg/Al2O3 catalyst for fluidized bed syngas methanation | |
| Cui, Dianmiao1,2; Liu, Jiao1; Yu, Jian1; Su, Fabing1; Xu, Guangwen1 | |
| 2015 | |
| Source Publication | CATALYSIS SCIENCE & TECHNOLOGY
 |
| ISSN | 2044-4753 |
| Volume | 5Issue:6Pages:3119-3129 |
| Abstract | Spray granulation was applied to prepare attrition-resistant Ni-Mg/Al2O3 catalysts for fluidized bed methanation. The tested binders included alumina sol (AS, pH = 4.0), acidic silica sol (SS, pH = 3.0), alumina-modified silica sol (AM, pH = 8.7) and alkaline silica sol (CC, pH = 9.6). By air-jet attrition test it was found that the attrition strength of the resulting catalysts followed an order of C-SS > C-AM > C-AS > C-CC, here C-SS, as an example, refers to the catalyst using SS as the binder. Characterization shows that the higher the volume of pores above 20 nm, the less attrition resistance of the catalyst there was, especially for catalysts using silica binders, whose high particle density was also beneficial to improving the attrition resistance of the catalyst. Syngas methanation over the catalysts in a fluidized bed at 2.5 MPa clarified an activity order of C-AS > C-SS > C-AM approximate to C-CC at 623-923 K. The AS binder enabled highly dispersed metallic Ni and many surface active sites for methanation reactions. Continuous methanation for 20 h at 900 K and 2.5 MPa verified the stability of the catalysts using the AS, SS and CC binders, but the activity clearly decreased over C-AM. Analyzing the spent catalysts via TPO demonstrated that a high amount of inactive carbon on C-AM caused its deactivation in the 20 h test. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1039/c5cy00066a |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | FISCHER-TROPSCH CATALYSTS ; SYNTHETIC NATURAL-GAS ; METAL-SUPPORT INTERACTION ; IRON CATALYSTS ; NICKEL ; TEMPERATURE ; HYDROGENATION ; DEPOSITION ; REACTORS ; ALUMINA |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000355487900009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/19269 |
| Collection | 多相复杂系统国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Cui, Dianmiao,Liu, Jiao,Yu, Jian,et al. Attrition-resistant Ni-Mg/Al2O3 catalyst for fluidized bed syngas methanation[J]. CATALYSIS SCIENCE & TECHNOLOGY,2015,5(6):3119-3129. |
| APA | Cui, Dianmiao,Liu, Jiao,Yu, Jian,Su, Fabing,&Xu, Guangwen.(2015).Attrition-resistant Ni-Mg/Al2O3 catalyst for fluidized bed syngas methanation.CATALYSIS SCIENCE & TECHNOLOGY,5(6),3119-3129. |
| MLA | Cui, Dianmiao,et al."Attrition-resistant Ni-Mg/Al2O3 catalyst for fluidized bed syngas methanation".CATALYSIS SCIENCE & TECHNOLOGY 5.6(2015):3119-3129. |
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| File Name/Size | DocType | Version | Access | License | ||
| Attrition-resistant （3184KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text | |
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