Regeneration of zeolitic molecular sieves with sulfur oxide abso

Details Regeneration of zeolitic molecular sieves with sulfur oxide abso Regeneration of zeolitic molecular sieves with sulfur oxide abso

1991-08-19

1992-09-08

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

55 73, 502 38, 502400, 502517, B01J 2034

Patent

active

051458152

ABSTRACT:
Methods are provided for regenerating a zeolitic molecular sieve having a sulfur-containing carbonaceous material deposited thereon by contacting the zeolitic molecular sieve with an oxygen-containing regeneration feed gas to remove at least a portion of the carbonaceous deposit material and thereafter absorbing sulfur oxides present in the regeneration gas using soda-lime absorbent. The methods can inhibit the deactivation of zeolitic molecular sieves by avoiding contact thereof with the sulfur oxides.

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patent: 4551304 (1985-11-01), Holter et al.
patent: 4600568 (1986-07-01), Yoon et al.
patent: 4604269 (1986-08-01), Yoon

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