Investigation and Modeling of the Hydrothermal Stability of Technically Relevant Zeolites

Autor:	M. Suckow, W. Lutz, Helge Toufar, R. Kurzhals
Rok vydání:	2005
Předmět:	Chemistry General Chemical Engineering Modulus Thermodynamics Mineralogy Surfaces and Interfaces General Chemistry Kinetic energy Decomposition Mordenite Hydrothermal circulation Adsorption Monod equation Zeolite
Zdroj:	Adsorption. 11:405-413
ISSN:	1572-8757 0929-5607
DOI:	10.1007/s10450-005-5406-9
Popis:	The dense-structured zeolites of types ZSM-5 (MFI) and mordenite (MOR) of different SiO2/Al2O3 moduli are relatively stable under treatment by liquid water for 72 hours up to 513 K. The open-structured zeolites of types Y in dealuminated modification (FAU) and beta (BEA) undergo strong decomposition in the same range. For these two sample types a mathematical model for the decomposition of the zeolite framework is established that takes into account the influence of modulus as well as temperature. Here the kinetic of the solid phase reaction is a superposition of two different mechanisms described by the Monod equation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::18ef46a08497cf62f0b0ca8280c07e35 https://doi.org/10.1007/s10450-005-5406-9 Zobrazit plný text záznamu Full text from SpringerLink