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Conversion of aqueous ethanol to ethylene over zeolite ZSM-5 and chryso-zeolite ZSM-5 catalysts
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Microfabricated ZSM-5 zeolite micromembranes
Chemical Engineering Science, 2004Abstract Free-standing microfabricated (MFI) zeolite micromembranes were successfully fabricated on a silicon substrate. Three zeolites including Sil-1, ZSM-5 ( Si / Al = 60 ) and ZSM-5 ( Si / Al = 40 ) were prepared. The zeolite micromembrane units were tested for gas permeation and separation. The micromembranes displayed an
Leung, YLA, Yeung, KL
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Crystallization kinetics of zeolite ZSM-5
Zeolites, 1992Abstract Zeolite ZSM-5 was synthesized from aluminosilicate gels in the presence of organic templates — tetrapropylammonium bromide (TPABr) and pyrrolidine (Py) — at temperatures of 423, 438 and 453 K. Nucleation and crystallization processes were subjected to a detailed kinetic analysis.
S. Mintova +3 more
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Hydrophobic natures of zeolite ZSM-5
Zeolites, 1982The adsorption of water, methanol, benzene, and n-hexane on a series of HZSM-5, in which SiO2/Al2O3 ratio was varied from about 50 to 900, were measured at 100°C, and their hydrophobic natures were examined. HZSM-5 preferred the less polar compound as n-hexane to other polar compounds such as water and methanol and the order of amounts adsorbed in the ...
Hiromi Nakamoto, Hiroshi Takahashi
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2014
ZSM-5 (Zeolite Socony Mobil-5, patented by Mobil oil company in 1975) is a high silica zeolite with a MFI framework structure (Mobil Five) characterized by the formula |(Na x(H 2O) 16|[Al xSi 96−xO 192], where x
Julbe, Anne, Drobek, Martin
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ZSM-5 (Zeolite Socony Mobil-5, patented by Mobil oil company in 1975) is a high silica zeolite with a MFI framework structure (Mobil Five) characterized by the formula |(Na x(H 2O) 16|[Al xSi 96−xO 192], where x
Julbe, Anne, Drobek, Martin
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Steaming of ZSM-5 zeolite film
Zeolites, 1992Abstract The change in morphology of the ZSM-5 zeolite films during steaming at 443 K was studied. The crystal growth of zeolite, 5–10 μm in size, from the layer of microcyrstalline ZSM-5 zeolites was first visualized by scanning electron microscopy.
T. Sano +5 more
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Structure of synthetic zeolite ZSM-5
Nature, 1978ZEOLITE ZSM-5 (ref. 1) is a member of a new class of shape selective catalysts with unique channel structures which differ from the familiar large-pore faujasite and small-pore zeolites such as Linde Type A and erionite. They also possess unusual catalytic properties and have high thermal stability.
G. T. KOKOTAILO +3 more
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Adsorption Properties of ZSM-5 Zeolites
Collection of Czechoslovak Chemical Communications, 1998Adsorption properties determined by physical adsorption of nitrogen for a series of ZSM-5 zeolite samples with various Si/Al ratios and different crystal size were compared. In addition to the BET method, the t-plot method was used to determine the microporosity of samples.
Pavol Hudec +6 more
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Toluene disproportionation over ZSM-5 zeolite
Applied Catalysis, 1991Abstract The catalytic activity and selectivity of ZSM-5 zeolite in toluene disproportionation were studied as a function of crystal size, silicon-to-aluminum ratio, acidity, activation method and pelletization of zeolite. Although para -xylene formation was slightly favoured by increasing the crystal size, high para -selectivity was not achieved. At
M.A. Uguina, J.L. Sotelo, D.P. Serrano
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Composite ZSM-5 zeolite/asbestos catalysts
Canadian Journal of Chemistry, 1985A procedure has been developed which allows growth of the zeolite ZSM-5 in chrysotile (asbestos) fibers which have previously had magnesium partially leached out. The resulting materials, when used as catalysts in the conversion of methanol into hydrocarbons showed very interesting product selectivities: i.e., (a) at high magnesium leaching degree ...
Raymond Le Van Mao +3 more
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