Catalyst regeneration procedure

Details Catalyst regeneration procedure Catalyst regeneration procedure

B - Operations, Transporting

01

J

252/87

B01J 23/96 (2006.01) B01J 23/40 (2006.01) C10G 35/09 (2006.01)

Patent

CA 1178263

F-0834 CATALYST REGENERATION PROCEDURE Abstract Supported multi-metallic platinum-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residue depleted catalyst with hydrogen at an elevated temperature to convert a substantial portion of the non-platinum component present in the catalyst to its metallic form, (3) contacting the reduced catalyst with dry hydrogen halide in the absence of oxygen, (4) treatment of the hydrogen halide treated catalyst with chlorine, and (5) reduction of the chlorine treated catalyst with a reducing agent, such as hydrogen.

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