Coke formation on ZSM-5 zeolites: Evidence from NMR spectrometry of sorbed xenon gas

NMR spectrometry of xenon-129 adsorbed in coked samples of a totally protonated H-ZSM-5 zeolite and a Na,H-ZSM-5 zeolite acidified at the surfaces of the particles shows variations attributable to differences in coke distribution.

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of catalysis 1991-04, Vol.128 (2), p.520-525
Hauptverfasser:	Tsiao, Chihji, Dybowski, Cecil, Gaffney, Anne M., Sofranko, John A.
Format:	Artikel
Sprache:	eng
Schlagworte:	02 PETROLEUM 020400 - Petroleum- Processing 400201 - Chemical & Physicochemical Properties ADSORPTION CARBON Catalysis CATALYSTS Chemistry COKE CRYSTAL STRUCTURE DAYS LIVING RADIOISOTOPES DEACTIVATION DEPOSITION DISTRIBUTION ELEMENTS ENERGY SOURCES EVEN-ODD NUCLEI Exact sciences and technology FOSSIL FUELS FUELS General and physical chemistry INORGANIC ION EXCHANGERS INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY INTERMEDIATE MASS NUCLEI INTERNAL CONVERSION RADIOISOTOPES ION EXCHANGE MATERIALS ISOMERIC TRANSITION ISOTOPES ISOTOPES MAGNETIC RESONANCE MATERIALS MICROSTRUCTURE MINERALS NONMETALS NUCLEAR MAGNETIC RESONANCE NUCLEI PETROLEUM POROSITY PROCESSING RADIOISOTOPES REFINING RESONANCE SORPTION STABLE ISOTOPES Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry XENON 129 XENON ISOTOPES ZEOLITES
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Beschreibung
Zusammenfassung:	NMR spectrometry of xenon-129 adsorbed in coked samples of a totally protonated H-ZSM-5 zeolite and a Na,H-ZSM-5 zeolite acidified at the surfaces of the particles shows variations attributable to differences in coke distribution.
ISSN:	0021-9517 1090-2694
DOI:	10.1016/0021-9517(91)90309-R