HYDROCRACKING PROCESS

A process for hydrocracking a petroleum feedstock involves:(a) hydrocracking the feedstock to obtain a hydrocracked effluent;(b) liquid/gas separation of the effluent to obtain a gaseous effluent and a liquid effluent;(c) fractionating the liquid effluent at a pressure P1, producing a first distilla...

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Bibliographische Detailangaben
Hauptverfasser:	DULOT, Hugues, PAILLIER, Alexis, PIGOURIER, Jerome, PUPAT, Nicolas, BONNARDOT, Jerome
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 SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for hydrocracking a petroleum feedstock involves:(a) hydrocracking the feedstock to obtain a hydrocracked effluent;(b) liquid/gas separation of the effluent to obtain a gaseous effluent and a liquid effluent;(c) fractionating the liquid effluent at a pressure P1, producing a first distillate and a first residue,(d) recycling a first portion of the first residue to hydrocracking,(e) rectifying a second portion of the first residue at a pressure P2 lower than or equal to the pressure P1, to obtain a secondary distillate, a secondary residue and a vapor stream,(f) purging a portion of the secondary residue, and(g) recycling all or part of the secondary distillate to hydrocracking.