Propane conversion on Cu-MFI zeolites

✍ Scribed by Vladislav I. Kanazirev; Geoffrey L. Price

• Book ID: 103997426
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 955 KB
• Volume: 96
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/1381-1169(94)00037-9

✦ Synopsis

A highly exchanged copper-containing MFI zeolite can be prepared by thermal treatment of CuO/H-MFI mechanical mixtures at 973 K in an O2 free environment. This material effectively catalyzes aromatization reactions of light paraffins and olefins. An unusually high selectivity for benzene is observed during propane conversion. The preparation technique appears to allow replacement of virtually all zeolitic protons with Cu+ ions. The high temperatures and presence of H-MFI favor the conversion of cu2 + to Cu+ so the process is termed 'reductive solid-state ion-exchange'. The participation of Cu+ cations in the aromatization mechanism is discussed.