Process for hydrogenative reactivation of spent catalysts

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,...

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

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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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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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