Aromatization of propane has been studied on Pt-Tl/ZSM-5 catalysts in the temperature range 350-550-degrees-C. The effect of thallium precursor and TI/Pt ratio has been also investigated. The best results have been obtained on the bimetallic samples prepared from Tl2SO4 and H2PtCl6. 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.
Propane aromatization over Pt-T1/ZSM-5
SCIRE', Salvatore;
1993-01-01
Abstract
Aromatization of propane has been studied on Pt-Tl/ZSM-5 catalysts in the temperature range 350-550-degrees-C. The effect of thallium precursor and TI/Pt ratio has been also investigated. The best results have been obtained on the bimetallic samples prepared from Tl2SO4 and H2PtCl6. 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.| File | Dimensione | Formato | |
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6. Appl. Catal. A 1993.pdf
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