CATALYTIC CRACKING FOR OLEFIN PRODUCTION

Heavy hydrocarbon feeds are catalytically cracked to lighter products by contacting with a catalyst containing large pore molecular sieve component and ZSM-5 and/or ZSM-11, the catalyst having a substantially inert matrix material such as silica and/or clay and having active matrix material of less...

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Hauptverfasser:	CHESTER, ARTHUR, W, MATHIAS, MARK, F, DEGNAN, THOMAS, F, TIMKEN, HYE, KYUNG, CHO, WOOLERY, GEOFFREY, L, KIU, KE
Format:	Patent
Sprache:	eng ; fre
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:	Heavy hydrocarbon feeds are catalytically cracked to lighter products by contacting with a catalyst containing large pore molecular sieve component and ZSM-5 and/or ZSM-11, the catalyst having a substantially inert matrix material such as silica and/or clay and having active matrix material of less than 10 wt.% based on total catalyst composition. The products include light olefins ethylene and propylene, and the light olefin yield is increased when the matrix material is substantially inert. Les charges d'hydrocarbures lourds subissent un craquage catalytique pour donner des produits plus légers par contact avec un catalyseur contenant un composant tamis moléculaire à larges pores et ZSM-5 et/ou ZSM-11, le catalyseur présentant une matière de matrice inerte, telle que de la silice et/ou de l'argile, et présentant une matière de matrice active inférieure à 10 % en masse, d'après la composition totale du catalyseur. Parmi ces produits figurent les oléfines légères à base d'éthylène et de propylène, la production d'oléfines légères croissant lorsque la matière de matrice est sensiblement inerte.