Catalyst drying and activation methods

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Activating treatment

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502 66, 502 74, B01J 2906, B01J 3700

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active

047177004

ABSTRACT:
A zeolite-based catalyst containing a metal oxide or oxide complex is dried by heating while in contact with the gas. Heat input to the catalyst and hence the rate of catalyst temperature increase are controlled so as to limit the rate of water evolution from the catalyst and the water vapor concentration in the gas, thereby to maintain the metal oxide or complex in dispersed form within the pores of the zeolite.

REFERENCES:
patent: 3216789 (1965-11-01), Breck et al.
patent: 4104320 (1978-08-01), Bernard et al.
patent: 4544539 (1985-10-01), Wortel
patent: 4568656 (1986-02-01), Poeppelmeier et al.
patent: 4595670 (1986-06-01), Tauster et al.

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