| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 40633 | Applied Catalysis A: General | 2012 | 8 Pages |
Four ZSM-5 zeolite materials with varying crystal size, acid site density and morphology were prepared, characterized by BET, XRD, SEM, FT-IR, H/D exchange and n-hexane cracking experiments and tested as catalysts for the Methanol to Olefins (MTO) reaction at 350 °C, WHSV = 1.8 g/gh under atmospheric pressure.Optimal propene to ethene ratios (>5) were obtained over a material prepared via the fluoride route. Its superior selectivity was tentatively ascribed to its low density of strong acid sites in combination with a long diffusion pathway and few crystal defects.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (78 K)Download as PowerPoint slideHighlights► Design of ZSM-5 zeolites with tailored acidity. ► Development of stable and very active MTO catalysts. ► Optimal propene to ethene ratios (>5) obtained over a zeolite prepared via the fluoride route. ► Superior selectivity to propylene ascribed to low density of strong acid sites.
