Thermal analysis of adsorbed propanamines for the characterization of GaMFI zeolites

Document Type

Article

Publication Date

1-1-1994

Abstract

Gallium-containing forms of MFI zeolite have been subjected to adsorption of 1- and 2-propanamine, and the results of subsequent thermal treatment have been analyzed and compared to literature reports for propanamines adsorbed on proton forms of MFI. Zeolitic gallium cations show completely different behavior from zeolitic protons, including a propanamine decomposition mechanism which is different from Hofmann elimination. In this mechanism NH3 is desorbed at temperatures as much as 160 K below that of HMFI. Major differences in the decomposition chemistry of the two amines were also observed when Ga cations were present. © 1994.

Publication Source (Journal or Book title)

Journal of Catalysis

First Page

228

Last Page

236

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