Process for regenerating nitrogen-treated carbonaceous chars use

Details Process for regenerating nitrogen-treated carbonaceous chars use Process for regenerating nitrogen-treated carbonaceous chars use

1994-03-29

1996-02-27

McFarlane, Anthony

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,...

502517, 423230, 423523, B01J 3848

Patent

active

054948690

ABSTRACT:
A process is provided for the restoration of hydrogen sulfide removal capacity in nitrogen-treated carbonaceous chars which have become exhausted for hydrogen sulfide capacity when used for the removal of hydrogen sulfide from gas streams containing oxygen and water. This process entails washing the spent carbonaceous char with water of sufficient quantity to remove the majority of the hydrogen sulfide reaction products. By the use of this process a significant proportion of the original hydrogen sulfide capacity of the nitrogen-treated carbonaceous char is recovered.

REFERENCES:
patent: 4259301 (1981-03-01), Say
patent: 4810266 (1989-03-01), Zinnen et al.

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