Process for regenerating a catalyst for the production of aromat

Details Process for regenerating a catalyst for the production of aromat Process for regenerating a catalyst for the production of aromat

1998-04-14

2000-10-17

Bos, Steven

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

502 38, 502 43, 502 45, 502 46, 502 47, 502 48, 502 49, 502 52, B01J 3844, B01J 3812, B01J 3834, B01J 3822, B01J 3828

Patent

active

06133183&

ABSTRACT:
The invention concerns a process for regenerating a catalyst for the production of aromatic compounds, in particular for reforming, comprising combustion (A), oxychlorination (B) and calcining (C) steps, in which at least one chlorinating agent (conduit 19), at least one oxygen-containing gas (conduit 18), and water (conduit 20) are introduced into the oxychlorination step such that the H.sub.2 O/HCl molar ratio is 3 to 50, the oxychlorination step being carried out in the presence of an oxychlorination gas containing less than 21% of oxygen and at least 50 ppm by weight of chlorine (based on HCl), and at a temperature of 350-600.degree. C.

REFERENCES:
patent: 5034117 (1991-07-01), DeBonneville et al.

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