Supported bimetallic catalyst with a strong interaction between a group VIII metal and tin, and its use in a catalytic reforming process
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United States of America Patent
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Aug 12, 2003
Grant Date -
Apr 18, 2002
app pub date -
Aug 23, 2001
filing date -
Aug 23, 2000
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Abstract
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.
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