FCC process employing low unit cell size y-zeolites

Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C3-C5 olefins employing a catalyst comprising a novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19...

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Bibliographische Detailangaben
Hauptverfasser:	TSANG, CHIH-HAO M, NEFF, LAURENCE D, PETTY, RANDALL H, DAI, PEI-SHING E
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a fluid catalytic cracking process for cracking gas oils and naphtha which provides improved selectivity for C3-C5 olefins employing a catalyst comprising a novel zeolite characterized by a large number of secondary pores, a substantially decreased Lattice Constant of below about 24.19 ANGSTROM , and a substantially decreased Acid Site Density, attained by hydrothermal and acid-treating of an ultrastable Y-zeolite.