Propane aromatization over Pt-T1/ZSM-5

✍ Scribed by S. Scire´; R. Maggiore; S. Galvagno; C. Crisafulli; G. Toscano

• Book ID: 103963452
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 719 KB
• Volume: 103
• Category: Article
• ISSN: 0926-860X
• DOI: 10.1016/0926-860x(93)85178-r

✦ Synopsis

Aromatization of propane has been studied on Pt-TI/ZSM-5 catalysts in the temperature range 350-550°C. The effect of thallium precursor and Tl/Pt ratio has been also investigated. The best results have been obtained on the bimetallic samples prepared from TlsSO, and HxPtC!la. On these samples addition of thallium to Pt/ZSM-5 increases the selectivity to aromatics without significantly affecting the catalytic activity. A maximum aromatic yield of about 70% has been obtained on the sample with a Tl/Pt ratio of 1. It is suggested that thallium dilutes the platinum active sites thus reducing their cracking activity.