Year: 2024
Type: article
Abstract: . Ethylene epoxidation was performed without and with the industrially crucial ethyl chloride promoter in the feed. Without the chloride (Cl), the ethylene oxide selectivity increased when Re was present, whereas the combination of Re and Cl decreased the ethylene oxide selectivity at higher Re loadings. Systematic ethylene oxide isomerization experiments revealed that Re and Cl individually inhibit the isomerization on the Ag surface. However, Re and Cl combined increased the isomerization, which can be explained by the surface becoming overly electrophilic. This hence shows the importance of studying promoters both individually and combined.
Source: Catalysis Science & Technology
DOI: 10.1039/d4cy00858h
Authors: Claudia J. Keijzer, Pim T. Weide, Kristiaan H. Helfferich, Justyna Zieciak, Marco de Ridder, Remco Dalebout, Tracy L. Lohr, John R. Lockemeyer, Peter van den Brink, Petra E. de Jongh
Institutions: Utrecht University, Shell (Netherlands), Shell (United States)
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Award: NICER Pulse Profile Modeling
OpenAlex ID: W4404116731