The Promoting Role of Silver on the Supported Silver Salt of Dodecatungstosiliticic Acid in the Methanol-to-Hydrocarbon Conversion
Reaction Kinetics and Catalysis Letters
, E-ISSN: 1588-2837
Central Institute of Physlcal Chemistry, Berlin, GDR
Institute of Catalysis, Novoslbirsk 630090, USSR
The conversion of methanol into light olefins has been studied using the silver salt of dodecatungstosilicic acid supported on serosil. Special attention has been paid to the process of the acid sites formation during the initial reaction period and to the role of hydrogen. The significantly higher activity and stability of the supported silver salt compared with the supported free heteropoly acid is explained by a controlled formation process of acidic sites and their additional generation from hydrogen on the metallic silver surface.