Regeneration of adsorbent beds

Details Regeneration of adsorbent beds Regeneration of adsorbent beds

1996-10-10

1999-01-26

Lewis, Michael L.

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

Regenerating or rehabilitating catalyst or sorbent

By heat

502 34, B01J 2034, B01J 3802, B01J 3804

Patent

active

058638520

ABSTRACT:
A method for regenerating a nickel-based catalytic adsorbent without using hydrogen in each cycle. Depending upon the configuration of the adsorbent bed, one or more interim regenerations, comprising the steps of heating the bed, flowing ultra-high purity nitrogen without hydrogen through the bed to remove adsorbed species, followed by cooling the bed, can be used to prepare the adsorbent bed for removal of unwanted species contained in cyrogenically produced nitrogen in order to make UHP nitrogen.

REFERENCES:
patent: 4713224 (1987-12-01), Tamhankar et al.
patent: 4869883 (1989-09-01), Thorogood et al.

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