PETR 91 |
| Recently, the activities of sulfur tolerant noble metal catalysts in the hydrodesulfurization have been reported. Especially, Pd-Ptbimetallic catalysts showed excellent hydrodesulfurization (HDS) and hydrogenation (HYD) activity as well as high stability in the hydrodesulfurization of light gas oil (LGO). The activities of HDS and HYD of the noble metal catalysts usually depend on the properties of supports and additives. In this work, we prepared Pd-Ptbimetallic catalysts supported on USY zeolite and titania and investigated the catalytic performance of the these catalysts in the hydrotreating of model and real feedstock of gasoline. The PdPt/Yb-USY catalyst showed high HDS, aromatics and olefin hydrogenation activities. The catalyst gave low sulfur and low aromatics products in the hydrotreatment of heavy naphtha and heavy FCC gasoline. Calcium modified PdPt/TiO2 catalyst showed the relatively high HDS selectivity. |
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2nd International Symposium on Hydrotreating/Hydrocracking Technologies
1:30 PM-4:10 PM, Tuesday, 12 September 2006 Palace -- Presidio Room, Oral
Division of Petroleum Chemistry |