Method for regenerating adsorbent mixture of alumina and zeolite

Details Method for regenerating adsorbent mixture of alumina and zeolite Method for regenerating adsorbent mixture of alumina and zeolite

1986-06-23

1987-08-11

Konopka, P. E.

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,...

210670, 210681, 502515, B01J 3864, B01J 2034, B01D 1500, C02F 142

Patent

active

046861980

ABSTRACT:
A process is described for regeneration of an adsorbent having ammonia adsorbed thereon and comprising a mixture of an alumina and a Y zeolite. The adsorbent may be regenerated to substantially its original capacity for adsorbing ammonia by a two step process which comprises first treating the adsorbent with a saturated solution of an alkali metal carbonate such as sodium carbonate to remove a substantial portion of the ammonia sorbed on the adsorbent mixture and then treating the adsorbent in a second step with a saturated alkali metal bicarbonate solution such as sodium bicarbonate to restore the ammonia adsorption capacity of the adsorbent mixture to substantially its original capacity.

REFERENCES:
patent: 3130007 (1964-04-01), Breck
patent: 3723308 (1973-03-01), Breck
patent: 4122007 (1978-10-01), Yamamoto et al.
patent: 4219441 (1980-08-01), Noshimura et al.
patent: 4344851 (1982-08-01), Sherman et al.

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