In-situ catalyst replacement

Details In-situ catalyst replacement In-situ catalyst replacement

2004-06-15

2009-12-29

Bhat, N. (Department: 1797)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

C208S182000, C422S198000, C422S199000, C422S211000, C110S346000, C048S126000

Reexamination Certificate

active

07638039

ABSTRACT:
The present invention relates generally to catalysts and, in particular, relates to in-situ replacement of catalyst within a reactor. In an embodiment, the present invention comprises a method for the in-situ replacement of catalyst bodies in a catalytic reactor comprising removing catalyst bodies in-situ from at least one modularized section of a catalytic layer within a catalytic reactor and replacing the removed catalyst bodies in-situ with replacement bodies comprising catalytic function wherein at least 10% of the total catalyst bodies within the layer are replaced.

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