Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 54, Issue -, Pages 82-97Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2017.05.021
Keywords
M-substituted (M: Mn, Ce, W) MFI zeolite; nanosheets; Methanol to propylene (MTP); Hydrothermal; C22-6-6Br2; Catalytic stability
Funding
- Sahand University of Technology
- University of Tabriz
- Iran Nanotechnology Initiative Council
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The nanosheets of M-substituted (M: Mn, Ce, W) MFI zeolites were successfully synthesized via hydrothermal method. The catalysts were satisfactorily characterized by different techniques and the well synthesized nanostructures were approved. The prepared catalysts were examined in methanol to propylene process and showed improved performance compared to the conventional H-ZSM-5. The W substituted MFI nanosheets productively represented the best performance with complete methanol conversion, propylene selectivity of 55.70%, total selectivity to light olefins of 88.04% and catalytic lifetime of 81 h. Furthermore, TGA and BET analyses were conducted to characterize the coke deposition. The lowest coke was detected on W-substituted MFI nanosheets. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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