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The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction
, Article Catalysis Communications ; Volume 10, Issue 12 , 2009 , Pages 1582-1585 ; 15667367 (ISSN) ; Baghalha, M ; Asadi, M ; Sharif University of Technology
2009
Abstract
The effect of particle size on the catalytic activity of H-ZSM-5 zeolite in the methanol to propylene (MTP) reaction was investigated in a fixed-bed flow reactor under the operating conditions of T = 460 °C, P = 1 atm, and WHSV = 1 h-1. Nano and micro size H-ZSM-5 were prepared by reflux and hydrothermal crystallization methods, respectively. The nano and micro H-ZSM-5 were characterized using XRD, NH3-TPD, BET area, SEM and ICP-AES analytical techniques. Nano size H-ZSM-5 showed higher activity and stability compared to the micro size H-ZSM-5. Nano H-ZSM-5 was also found to have higher selectivity to propylene than the micro size H-ZSM-5. © 2009 Elsevier B.V. All rights reserved