TUNING THE ACIDIC AND CATALYTIC PROPERTIES OF FAUJASITES BY THERMAL DEALUMINATION

Authors
MISHIN IV BEYER HK
Citation
Iv. Mishin et Hk. Beyer, TUNING THE ACIDIC AND CATALYTIC PROPERTIES OF FAUJASITES BY THERMAL DEALUMINATION, Kinetics and catalysis, 38(3), 1997, pp. 437-443
Citations number
12
Categorie Soggetti
Chemistry Physical
Journal title
Kinetics and catalysis → ACNP
ISSN journal
00231584
Volume
38
Issue
3
Year of publication
1997
Pages
437 - 443
Database
ISI
SICI code
0023-1584(1997)38:3<437:TTAACP>2.0.ZU;2-A
Abstract
The composition, acidity, and catalytic activity of Y zeolites decatio nated by two-stage ion exchange with intermediate heating at 400-700 d egrees C are studied. An increase in the temperature of thermal treatm ent is shown to decrease the Al content in the framework and increase the concentration of strong acid sites and the catalytic activity in c racking of isooctane and disproportionation of ethylbenzene. A relatio nship between the framework composition upon thermal treatment and the Si/Al ratio in the starting samples is found.