Pretreatment Effects on Active State and Aromatization Activity of Ga/ZSM-5 Catalysts

Document Type

Article

Publication Date

1-1-1993

Abstract

Recent work on Ga-containing ZSM-5 has shown that H-reduced Ga2O3/ZSM-5 mixtures are active and selective for propane aromatization. Extra-framework Ga in ZSM-5 enhances the rates of olefin and diene dehydrogenation; Ga2O3 or steamed gallosilicates aromatize olefins and dienes at 500–600°C. The dispersion and oxidation states of Ga affect the relative rates of dehydrogenation and hydrocracking. The aim of the study described in the chapter was to show that although reduction disperses Ga, the form of the catalyst best for aromatic production does not consist of Ga+1 cations. © 1993, Elsevier Science & Technology. All rights reserved.

Publication Source (Journal or Book title)

Studies in Surface Science and Catalysis

First Page

2415

Last Page

2418

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