Ex-situ reduction and dry passivation of noble metal catalysts
AssigneeExxonMobil Research and Engineering Company
InventorsStephen J. McCarthy, Jean W. Beeckman, William G. Borghard, Sylvain Hantzer
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Abstract
A method of ex-situ activation and dry passivation of supported noble metal catalysts including the steps of reducing in the presence of hydrogen and dry passivation by cooling in an inert atmosphere and exposing to air or by filling the pores of the catalyst with a low sulfur oil before exposing to air.
Claims10
A process for ex-situ reduction and dry passivation of a supported noble metal oxide catalyst having pores and including a mesoporous or zeolitic matrix comprising
- (a) reducing said catalyst in the presence of hydrogen and inert gas, to produce a reduced catalyst,
- (b) passivating the reduced catalyst so that the catalyst remains dry and free flowing by a process including cooling in an inert atmosphere and filling the pores of the catalyst with oil, in the absence of excess liquid.
A process for ex-situ reduction and dry passivation of a supported noble metal oxide catalyst having pores and including a mesoporous or zeolitic matrix comprising
- (a) reducing said catalyst in the presence of hydrogen and inert gas, to produce a reduced catalyst,
- (b) passivating the reduced catalyst so that the catalyst remains dry and free flowing by a process including cooling in an inert atmosphere and exposing the catalyst to air.
Dependencies are inferred from the claim text.