Metals modification of the paraffin dehydrogenation catalyst regenerated by coke combustion
文献类型：期刊论文
| 作者 | Sun, Chenglin1; He, Songbo1,3; Li, Jingqiu1; Wang, Bin2; Dai, Xihai2; Bai, Ziwu2; Guo, Qi2; Seshan, K.3 |
| 刊名 | APPLIED CATALYSIS A-GENERAL
 |
| 出版日期 | 2016-03-05 |
| 卷号 | 513页码:82-88 |
| 关键词 | Dehydrogenation Pt Regeneration Combustion Modification |
| ISSN号 | 0926-860X |
| DOI | 10.1016/j.apcata.2015.12.027 |
| 文献子类 | Article |
| 英文摘要 | The industrially deactivated Pt-0.5-Sn-1.5-K-0.5-Mg-1/gamma-Al2O3 catalyst for dehydrogenation of long chain paraffins (n-C-10 degrees-C-(13 degrees)) was regenerated by coke burn off and metals (Pt, Sn and K) modification. The catalysts were characterized by TG, BET, CO-chemisorption, H-2-TPR, XRD and mechanical crushing strength test. Paraffin dehydrogenation was performed on a bench reactor at the industrial site. Results showed that temperature increase during coke combustion can be effectively controlled with O-2 content lower than 1%. The combustion temperature should be higher than 500 degrees C to burn all the coke and lower than 550 degrees C to avoid Pt sintering. Under optimal conditions, coke combustion results only in 92% recovery of catalyst activity. Subsequent metals modification with additional 0.01 wt.% Pt addition can recover catalytic performance completely, paraffin conversion and olefin selectivity to the levels of fresh catalyst. The modified catalyst has longer life-time of 77 days compared to fresh catalyst of 69 days. Results are explained in terms of the characteristics of the catalysts. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS关键词 | N-DODECANE ; DEPOSITS ; KINETICS ; OLEFINS ; PHASE |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000373408600008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170702]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Sun, Chenglin; He, Songbo |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.PetroChina Fushun Petrochem Co, Fushun 113001, Liaoning, Peoples R China 3.Univ Twente, MESA Inst Nanotechnol, Catalyt Proc & Mat, NL-7500 AE Enschede, Netherlands |
| 推荐引用方式 GB/T 7714 | Sun, Chenglin,He, Songbo,Li, Jingqiu,et al. Metals modification of the paraffin dehydrogenation catalyst regenerated by coke combustion[J]. APPLIED CATALYSIS A-GENERAL,2016,513:82-88. |
| APA | Sun, Chenglin.,He, Songbo.,Li, Jingqiu.,Wang, Bin.,Dai, Xihai.,...&Seshan, K..(2016).Metals modification of the paraffin dehydrogenation catalyst regenerated by coke combustion.APPLIED CATALYSIS A-GENERAL,513,82-88. |
| MLA | Sun, Chenglin,et al."Metals modification of the paraffin dehydrogenation catalyst regenerated by coke combustion".APPLIED CATALYSIS A-GENERAL 513(2016):82-88. |
入库方式： OAI收割
来源：大连化学物理研究所
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