Process for preparing multimetallic reforming catalysts
AssigneeExxon Research & Engineering Co.
InventorsCharles H. Mauldin, William C. Baird, Jr.
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Abstract
A process for the synthesis of catalysts by pre-forming a porous refractory inorganic oxide support, or carrier from a coarse particulate solid, preferably an alumina extrudate, contacting said preformed support with an acid solution, and then treating, contacting and neutralizing said preformed acid treated support with a base prior to the impregnation of said neutralized support with a metal, or metals, hydrogenation-dehyrdogenation component. The preformed solid support ranges at least about 1/32 inch diameter, and preferably at least about 1/16 inch diameter, and larger.
Claims6
A process for the preparation of platinum-rhenium reforming catalysts which comprises
- pre-forming an inorganic oxide support of particle size diameter of at least about 1/32 inch in diameter,
- contacting said support with an acid solution without dissolving any significant amount of said support,
- neutralizing said acid treated support without dissolving any significant amount of said support,
- impregnating said neutralized support by contact thereof with a solution containing platinum and rhenium compounds, and then
- drying and calcining said impregnated support to form said catalyst.
Dependencies are inferred from the claim text.