Res. Chem lntermed., Vol. 24, No. 3, pp. 337-348 (1998) 9 VSP 1998 RESEARCH AND DEVELOPMENT OF ZEOLITE CATALYSIS IN THE 80TIES AND IN THE 90TIES AS WELL AS FORTHCOMING TRENDS WOLFGANG F. HOELDERICH and DIETER HEINZ Department of Chemical Technology and Heterogeneous Catalysis, University of Technology, RWTH Aachen, Worringerweg 1, 52074 Aachen, Germany Received 23 December 1997; accepted 26 December 1997 CONTENTS ! Introduction II. Zeolite Catalysis in the 80ties Zeolites in Petmchemistry Zeolites ii~r the Synthesis of Intermediate Chemicals Zeolites as Oxidation Cataly~s Zeolltes for Removal of Nitrogen Oxides III, Zeolite Catalysis in the 90s Zeolites for the Synthesis of Fine and Intermediate Chemicals Zeolites as Carriers for Homogeneous Catalysts Zeolites as Mnitifunctional Catalysts IV. Conclusion and Fo~hcoming Trends V, Acknowledgement Vl References I. INTRODUCTION The industrial use of zeolites as catalysts started at the beginning of the 1960s with the replacement of cracking catalysts based on amorphous aluminosilicates [ 1-3]. Thereby catalytic activity is based on the acidic properties of X- an Y-zeolites. Palladium doped Y-zeolites proved successful as bifunctional catalysts in hydrocracking reactions using the acidic features as well as the carrier function of the molecular sieve [4,5]. Similar features are applied in the Platforming
Research on Chemical Intermediates – Springer Journals
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