O-Th-301-19 An Investigation on the Role of Re As a Promoter in Ag-Cs-Re/á-Al2O3 High-Selectivity, Ethylene Epoxidation Catalysts

Thursday, June 18, 2015: 5:00 PM
301-303 (Lawrence Convention Center)
Weijian Diao, Christopher D. DiGiulio, Melanie Schaal, Shuguo Ma and John M. Monnier, University of South Carolina, USA.
A series of high selectivity Cs-Re-Mo-Ag/α-Al2O3 catalysts are prepared for ethylene epoxidation. Optimal amounts of Re and Mo on Cs-promoted, Ag/α-Al2O3 increase EO selectivity by more than 9% to >83%.  Analyses by XPS and SEM suggest the origin of both Re and Cs promotions are electronic in nature.

Extended Abstracts:

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