Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 257, Issue -, Pages 154-161Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2017.08.039
Keywords
Glycerol; Aromatization; H[Sn, Al]ZSM-5; Hydrothermal synthesis; Hierarchical zeolite
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Funding
- National Natural Science Foundation of China [21276050, 21406034, 21676054]
- Natural Science Foundation of Jiangsu [BK20161415]
- Fundamental Research for the Central Universities [3207045414, 3207045101, 3207045426]
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Hierarchical H[Sn, Al]ZSM-5 zeolites were successfully prepared by hydrothermal method with directly incorporating Sn species into framework of HZSM-5 zeolites followed by alkali treatment. The prepared samples were characterized by XRD, BET, SEM-EDX, TEM, NH3-TPD, FT-IR and Py-IR. The results indicate that Sn species were successfully incorporated into HZSM-5 zeolites. The catalytic performances of all prepared zeolites were evaluated by glycerol aromatization. The highest catalytic performance of GTA synthesis was observed with H[Sn, Al]ZSM-5 treated with 0.3 M NaOH (32.1% carbon yield of BTX aromatics and 13 h catalyst lifetime), which was prior to the pure HZSM-5 (17.8% carbon yield of BTX aromatics and 3 h catalyst lifetime). The remarkably improved performance in catalytic activity and stability of H[Sn, Al]ZSM-5/0.3AT zeolitize could be attributed to synergy effect between Sn species doped into HZSM-5 zeolite and the generated micro-mesoporous structure by alkali treatment (C) 2017 Elsevier Inc. All rights reserved.
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