Process for restoring deactivated catalysts

Details Process for restoring deactivated catalysts Process for restoring deactivated catalysts

1988-10-12

1990-06-26

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208140, 502 37, 502517, B01J 2938, B01J 3846, B01J 3844, C10G 35095

Patent

active

049372157

ABSTRACT:
A process for restoring deactivated catalysts containing zeolite with a noble metal of Group VIII of the Periodic Table and to be used in the production of aromatic compounds, wherein decoking of the deactivated catalysts is carried out in the presence of halogen or a halogen-containing compound. This restoration process permits effective restoration of deactivated catalysts and thus is expected to be employed in the fields of petroleum purification, petrochemistry and so forth.

REFERENCES:
patent: 3904510 (1975-09-01), Sinfelt et al.
patent: 3998755 (1976-12-01), Hayes
patent: 4046673 (1977-09-01), Paynter et al.
patent: 4438288 (1984-03-01), Imai et al.
patent: 4810683 (1989-03-01), Cohn et al.

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