Effect of Framework Si/Al Ratios on the Catalytic Performance of Isobutane Alkylation over LaFAU Zeolites
文献类型：期刊论文
| 作者 | Yang, Zhiqiang2,3; Zhang, Ruirui2; Dai, Fei2; Tang, Hongguo2; Liu, Ruixia1,2; Zhang, Suojiang1,2,3 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2020-08-20 |
| 卷号 | 34期号:8页码:9426-9435 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.0c01388 |
| 英文摘要 | To develop catalysts with superior stability for isobutane alkylation, La3+ exchanged FAU zeolites with varying framework Si/Al ratios were investigated. Based on the reaction performed in a continuous flow stirred tank reactor, a strong linear relationship between catalyst lifetime and strong Bronsted acid concentration was observed. Catalyst lifetime was speculated to change in an M-shaped pattern with respect to the framework Si/Al ratio, which implies there were at least two extreme Si/Al ratios in terms of catalyst stability. However, their product distribution differed significantly. LaFAU with a high Si/Al ratio led to enhanced acid strength, which resulted in higher cracking, self-alkylation activity, and poor product selectivity. In determining a balance between catalyst stability and product selectivity, a Si/Al ratio of similar to 1.2 was selected as the optimal value for LaFAU zeolites. |
| WOS关键词 | OLEFIN ALKYLATION ; 2-BUTENE ALKYLATION ; H-EMT ; FAUJASITE ; SELECTIVITY ; CHEMISTRY ; MECHANISM ; USY |
| 资助项目 | National Key Research and Development Program of China[2017YFA0206803] ; National Natural Science Foundation of China[21878315] ; K. C. Wong Education Foundation[GJTD-2018-04] ; Major Program of National Natural Science Foundation of China[21890762] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000563095800026 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; K. C. Wong Education Foundation ; Major Program of National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/41916]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Ruixia; Zhang, Suojiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc,Inst Proc, Beijing 100049, Peoples R China 3.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Zhiqiang,Zhang, Ruirui,Dai, Fei,et al. Effect of Framework Si/Al Ratios on the Catalytic Performance of Isobutane Alkylation over LaFAU Zeolites[J]. ENERGY & FUELS,2020,34(8):9426-9435. |
| APA | Yang, Zhiqiang,Zhang, Ruirui,Dai, Fei,Tang, Hongguo,Liu, Ruixia,&Zhang, Suojiang.(2020).Effect of Framework Si/Al Ratios on the Catalytic Performance of Isobutane Alkylation over LaFAU Zeolites.ENERGY & FUELS,34(8),9426-9435. |
| MLA | Yang, Zhiqiang,et al."Effect of Framework Si/Al Ratios on the Catalytic Performance of Isobutane Alkylation over LaFAU Zeolites".ENERGY & FUELS 34.8(2020):9426-9435. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。