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| Effect of Framework Si/Al Ratios on the Catalytic Performance of Isobutane Alkylation over LaFAU Zeolites | |
| Yang, Zhiqiang1,2; Zhang, Ruirui2; Dai, Fei2; Tang, Hongguo2; Liu, Ruixia2,3; Zhang, Suojiang1,2,3 | |
| 2020-08-20 | |
| Source Publication | ENERGY & FUELS
 |
| ISSN | 0887-0624 |
| Volume | 34Issue:8Pages:9426-9435 |
| Abstract | 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. |
| DOI | 10.1021/acs.energyfuels.0c01388 |
| Language | 英语 |
| WOS Keyword | OLEFIN ALKYLATION ; 2-BUTENE ALKYLATION ; H-EMT ; FAUJASITE ; SELECTIVITY ; CHEMISTRY ; MECHANISM ; USY |
| Funding Project | 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 Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| Funding Organization | 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 |
| WOS ID | WOS:000563095800026 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/41917 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Ruixia; Zhang, Suojiang |
| Affiliation | 1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, 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.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| Recommended Citation 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. |
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