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AssigneeInstitut Francais du Petrole
InventorsFabienne Le Peltier, Blaise Didillon, Jean-Claude Jumas, Josette Olivier-Fourcade
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A novel supported bimetallic catalyst comprises a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with the group VIII metal in the catalyst in the reduced state. In the partially oxidized state, the catalyst of the invention contains at least 10% of tin in the form of a reduced tin species with oxidation state 0, said species having an isomer shift in the range 0.80 to 2.60 mm/s and a quadrupolar splitting in the range 0.65 to 2.00 mm/s. The invention also concerns the preparation of said catalyst, and processes using said catalyst for transforming hydrocarbons into aromatic compounds, such as gasoline reforming processes and aromatic production processes.
A catalyst, in the reduced state, comprising at least one support, at least one metal from group VIII of the periodic table, at least tin which is essentially present in the oxidized state, wherein when said catalyst is in the partially oxidised state at least a portion of the tin is in the form of a reduced species with oxidation state 0, said reduced species having an isomer shift IS in the range 0.80 to 2.60 mm/s and with a quadrupolar splitting in the range 0.65 to 2.00 mm/s, and wherein when said catalyst is in the partially oxidised state, said reduced species with oxidation state 0 represents at least 10% of the tin present in the catalytic mass.
Dependencies are inferred from the claim text.