Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Activating treatment
Patent
1988-05-16
1990-04-10
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Activating treatment
502 62, B01J 2906
Patent
active
049160974
ABSTRACT:
A method for activation of an organic cation-containing crystalline catalyst is disclosed. The method includes contacting the catalyst with steam under conditions to decompose the organic cations, which result in the activation of the catalyst. The method has the advantage that organic cations are converted to non-hazardous by-products such as ammonia and light hydrocarbons such as ethylene. These are more easily controlled by environmental control schemes than higher molecular weight by-products resulting from traditional activation methods (nitrogen or nitrogen/air). The steamed catalyst can optionally be calcined to remove any organic material which may remain after steaming.
For instance, a major product which results from decomposting the tetraethylammonium organic cations in zeolite .beta. is ethylene. The ethylene can be subsequently converted into carbon dioxide and water by oxidation.
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Chu Yung F.
McWilliams John P.
Dees Carl F.
McKillop Alexander J.
Mobil Oil Corp.
Santini Dennis P.
Speciale Charles J.
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