INTEGRATED METHOD FOR PRODUCING MIDDLE DISTILLATE WITH A RECYCLING LOOP IN HYDROTREATMENT

Method of treating petroleum feedstocks comprising the hydrotreatment of said feedstocks followed by hydrocracking of at least one part of the hydrotreatment effluent. Cooling and separating the hydrocracking effluent into a hydrogen-rich gas efflux and a liquid efflux. Fractionating the liquid effl...

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Bibliographische Detailangaben
Hauptverfasser:	TELLIER, Elodie, BONNARDOT, Jerome
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CRACKING HYDROCARBON OILS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY MINERAL WAXES NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES 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 SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	Method of treating petroleum feedstocks comprising the hydrotreatment of said feedstocks followed by hydrocracking of at least one part of the hydrotreatment effluent. Cooling and separating the hydrocracking effluent into a hydrogen-rich gas efflux and a liquid efflux. Fractionating the liquid effluent into converted hydrocarbon products having boiling points lower than 340° C. and an unconverted liquid fraction having a boiling point higher than 340° C. Hydrotreating a diesel-fuel-type liquid hydrocarbon feedstock and separating the effluent into a hydrogen-rich gas efflux and a liquid efflux. Fractionating the liquid efflux into at least one light gas fraction, a naphtha fraction, and a middle distillate fraction having a boiling point higher than 150° C. and compressing the gas efflux in a hydrogen makeup compressor supplying the hydrotreatment and hydrocracking steps comprising at least 2 stages, with said gas efflux being injected and compressed in an intermediate stage of said compressor before being recycled upstream.