Dependence of the Adsorption Capacity and Thermal Stability of Y Zeolites upon Si/Al Ratio
- 1 September 1986
- journal article
- Published by SAGE Publications in Adsorption Science & Technology
- Vol. 3 (3) , 149-158
- https://doi.org/10.1177/026361748600300304
Abstract
Three series of dealuminated Y zeolites have been prepared by different procedures. The adsorption of n-hexane and water and the thermal stability have been studied with respect to their dependence on the content of framework aluminium. The reduction of their micropore volume can be calculated from the loss of framework aluminium. The water uptake decreases strongly below an aluminium content of 30 atoms per unit cell. At an aluminium content ≤8 atoms the zeolitic micropore structure is hydrophobic. Two ranges of thermal stability can be distinguished with decreasing aluminium content.Keywords
This publication has 12 references indexed in Scilit:
- High-resolution solid-state nuclear magnetic resonance studies of dealuminated zeolite YJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1985
- Preparation of high-silica faujasites by treatment with silicon tetrachlorideJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1985
- Adsorption of n-hexane on H—Y and on deep bed treated dealuminated Y zeolitesZeolites, 1984
- Surface composition of dealuminated Y zeolites studied by X-ray photoelectron spectroscopyZeolites, 1984
- High resolution 29Si n.m.r. of dealuminated Y-zeolites 1. The dependence of the extent of dealumination on the degree of ammonium exchange and the temperature and water vapour pressure of the thermochemical treatmentZeolites, 1983
- Dealuminierte Molekularsiebe vom Typ Y Zur Porosität dealuminierter MolekularsiebeZeitschrift für anorganische und allgemeine Chemie, 1981
- Dealuminierte Molekularsiebe vom Typ Y. Herstellung und Charakterisierung durch IR‐Spektren, DTA/DTG‐Messungen und AdsorptionsdatenZeitschrift für anorganische und allgemeine Chemie, 1978
- Infrared Structural Studies of Zeolite FrameworksPublished by American Chemical Society (ACS) ,1974
- Infrared Absorption Spectra of Silica Gel-H216O, D216O, and H218O SystemsBulletin of the Chemical Society of Japan, 1971
- Chemistry of crystalline aluminosilicates. V. Preparation of aluminum-deficient faujasitesThe Journal of Physical Chemistry, 1968