Journal
CATALYSIS COMMUNICATIONS
Volume 73, Issue -, Pages 27-33Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2015.10.008
Keywords
Ethanol; Propylene; H-ZSM-5; Particle size
Categories
Funding
- National Natural Science Foundation of China [21406269]
- Shandong Provincial Natural Science Foundation, China [ZR2014BQ012]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [K1504051C]
- Shandong Provincial Key Research Program [2015GSF121017]
- Fundamental Research Funds for the Central Universities [15CX05013A]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials [sklssm201429]
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass [2014lCUFB06]
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In this study, H-ZSM-5 catalysts with different particle sizes were prepared by adding different amount of water to the starting gel before crystallization. These H-ZSM-5 catalysts were characterized by scanning electron microscopy, N-2 adsorption/desorption measurements, X-ray fluorescence, X-ray diffraction, and temperature programmed desorption of ammonia. It was found that the olefin (ethylene, propylene and butene) yield decreased with the increase in the particle size of the catalysts. The paraffin (ethane, propane and butane) yield trended to increase with the increase of particle size. The C-5 + products yield increased considerably with the increase of particle size. The results implied that the formation of the C-5 + products and hydrogen was inhibited over the smaller particle size catalyst, furthermore the formation of paraffin decreased. So the propylene yield could be increased over smaller H-ZSM-5 catalyst. (C) 2015 Elsevier B.V. All rights reserved.
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