Method of producing a steam stable aluminosilicate zeolite catalyst

Steam stable aluminosilicate zeolite catalysts are prepared by calcining said zeolites at an elevated temperature below about 1100 DEG F. in a closed system having a limited amount of oxygen wherein said zeolite contains organic cations and/or is in intimate contact with a charring agent thereby con...

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Hauptverfasser:	MIALE, JOSEPH N, CHEN, NAI Y, REAGAN, WILLIAM J
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	Steam stable aluminosilicate zeolite catalysts are prepared by calcining said zeolites at an elevated temperature below about 1100 DEG F. in a closed system having a limited amount of oxygen wherein said zeolite contains organic cations and/or is in intimate contact with a charring agent thereby converting a portion of said organic cations or charring agent to a carbonaceous deposit within the pores of said zeolite in an amount from about 1.5-15 wt. % based on the total weight of the catalyst. Such catalysts are highly useful in the conversion of oxygenates, e.g., methanol to hydrocarbon products.