Two stage hydrodesulfurization process

A process for hydrodesulfurizing naphtha feedstreams wherein the reactor inlet temperature is below the dew point of the feedstock at the reactor inlet so that the naphtha will completely vaporize within the catalyst bed. It is preferred to use a catalyst comprised of about 1 to about 10 wt. % MoO3,...

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Hauptverfasser:	JEFFREY LAWRENCE KAUFMAN, GARLAND BARRY BRIGNAC, JOHN CALVIN COKER
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:	A process for hydrodesulfurizing naphtha feedstreams wherein the reactor inlet temperature is below the dew point of the feedstock at the reactor inlet so that the naphtha will completely vaporize within the catalyst bed. It is preferred to use a catalyst comprised of about 1 to about 10 wt. % MoO3, about 0.1 to about 5 wt. % CoO supported on a suitable support material. They are also characterized as having an average medium pore diameter from about 60 ANGSTROM to 200 ANGSTROM . a Co/Mo atomic ratio of about 0.1 to about 1.0, a MoO3 surface concentration of about 0.5x10-4 to about 3.0x10-4g MoO3/m2, and an average particle size of less than about 2.0 mm in diameter.