Regeneration of noble metal containing zeolite catalysts via par

Details Regeneration of noble metal containing zeolite catalysts via par Regeneration of noble metal containing zeolite catalysts via par

1993-05-18

1995-02-28

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208111, 208140, 502 38, 502 50, B01J 2938, B01J 3814, C10G 3595, C10G 4718

Patent

active

053937171

ABSTRACT:
There is provided a process for regenerating a coked catalyst comprising a zeolite and a noble metal such as platinum. The process involves treating the coked catalyst under somewhat mild oxidation conditions, whereby a sufficient portion of the coke is removed from the catalyst to restore the hydrocarbon sorption properties of the zeolite component to the level observed in the non-coked form. Surprisingly, the original activity of the catalyst is substantially restored, even though a substantial amount of coke remains on the regenerated catalyst.

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