Process for hydrogenative reactivation of spent catalysts

Details Process for hydrogenative reactivation of spent catalysts Process for hydrogenative reactivation of spent catalysts

1985-01-09

1987-03-10

Konopka, P. E.

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

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

208111, 502 22, 502 34, 502 53, 502 55, 502515, B01J 2938, B01J 3806, B01J 3810, B01J 3852

Patent

active

046491279

ABSTRACT:
A process for removing nitrogen chemically bound to a zeolite component of a catalytic composition, used in hydroprocessing feedstocks containing nitrogen precursors, including contacting the hydrogen treated used catalyst composition with polar solvents, preferably in the gaseous state, at pressures practically no greater than 100 Torr.

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patent: 3699036 (1972-10-01), Hass et al.
patent: 3706658 (1972-12-01), Hass et al.
patent: 3849293 (1974-11-01), Ward
patent: 3943051 (1976-03-01), Ward
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patent: 4139433 (1979-02-01), Ward
patent: 4190554 (1980-02-01), Yamauchi et al.
patent: 4560670 (1985-12-01), Pelring
A. D. Reichle et al., "Hydrocracking Catalyst Rejuvenated", The Oil and Gas Journal, pp. 137-143, Jul. 29, 1984.
A. D. Reichle et al., "New Rejuvenation Techniques Extend Unicracking-JHC Catalyst Life", presented at the MPRA Annual Meeting in the Spring of 1974.

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