MODIFIED ULTRA-STABLE Y (USY) ZEOLITE CATALYST FOR DEALKYLATION OF AROMATICS

The present disclosure relates to a process for the hydrodealkylation of aromatic rich hydrocarbon streams to produce benzene, toluene and mixed xylenes (BTX), with high selectivity towards high value xylenes. The process uses catalysts containing a framework-substituted zirconium and/or titanium an...

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Hauptverfasser:	HODGKINS, Robert Peter, KOSEOGLU, Omer Refa, WATABE, Mitsunori, UCHIDA, Koji
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY 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:	The present disclosure relates to a process for the hydrodealkylation of aromatic rich hydrocarbon streams to produce benzene, toluene and mixed xylenes (BTX), with high selectivity towards high value xylenes. The process uses catalysts containing a framework-substituted zirconium and/or titanium and/or hafnium-modified ultra-stable Y (USY) type zeolite. La présente invention concerne un procédé d'hydrodésalkylation de flux d'hydrocarbures riches en aromatiques pour produire du benzène, du toluène et des xylènes mixtes (BTX), avec une sélectivité élevée vis-à-vis des xylènes à valeur élevée. Le procédé utilise des catalyseurs contenant une zéolite de type Y ultrastable (USY) modifiée par du zirconium et/ou du titane et/ou de l'hafnium à structure substituée.