LOW CO FOR INCREASED NAPHTHA DESULFURIZATION

Naphtha hydrodesulfurization selectivity is increased by reducing the amount of COX (CO plus CO2) in the hydrodesulfurization react ion zone to less than 100 vppm. While this is useful for non-selective hydrodesulfurization, it is particularly useful for selectively desulfurizin g an olefin-containi...

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Hauptverfasser:	LALAIN, THERESA A, ELLIS, EDWARD STANLEY, GREELEY, JOHN PETER, BRIGNAC, GARLAND BARRY, DEMMIN, RICHARD ALAN, HALBERT, THOMAS R
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:	Naphtha hydrodesulfurization selectivity is increased by reducing the amount of COX (CO plus CO2) in the hydrodesulfurization react ion zone to less than 100 vppm. While this is useful for non-selective hydrodesulfurization, it is particularly useful for selectively desulfurizin g an olefin-containing naphtha without octane loss due to olefin saturation by hydrogenation. The COX reduction is achieved by removin g COX from the treat gas before it is passed into the reaction zone.