Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1991-07-22
1993-05-11
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208140, 502 35, 502 36, 502517, B01J 2938, B01J 3845, B01J 3842, C10G 35095
Patent
active
RE0342505
ABSTRACT:
The present invention is a process for regenerating a sulfur-contaminated, highly selective, large-pore zeolite catalyst. It comprises a multistep process involving exposure of the catalyst to a combination of oxidizing conditions, reducing conditions and treatment with a halogen acid gas. These conditions are effective to agglomerate a Group VIII metal and remove sulfur. Thereafter, the catalyst is oxychlorinated to redisperse the Group VIII metal over the catalyst surface. A carbon removal step is optionally included.
REFERENCES:
patent: 3287257 (1966-11-01), Hansford et al.
patent: 3357915 (1967-12-01), Young
patent: 3418256 (1968-12-01), Rigney et al.
patent: 3950491 (1976-04-01), Liederman et al.
patent: 3986982 (1976-10-01), Crowson et al.
patent: 4191633 (1980-03-01), Dauber
patent: 4377495 (1983-03-01), Tse
patent: 4435283 (1984-03-01), Buss et al.
patent: 4447316 (1984-05-01), Buss
patent: 4456527 (1984-06-01), Buss et al.
patent: 4482637 (1984-11-01), Buss et al.
patent: 4518708 (1985-05-01), Krishnamurthy et al.
patent: 4555495 (1985-11-01), Krishnamurthy
patent: 4645751 (1987-02-01), McCullen
Hughes Thomas R.
Jacobson Robert L.
Mohr Donald H.
Tamm Paul W.
Van Leirsburg Dean A.
Chevron Research and Technology Company
Konopka Paul E.
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