OPTIMIZED PROCESS FOR THE HYDROTREATING AND HYDROCONVERSION OF FEEDSTOCKS DERIVED FROM RENEWABLE SOURCES

OPTIMIZED PROCESS FOR THE HYDROTREATING AND HYDROCONVERSION OF FEEDSTOCKS DERIVED FROM RENEWABLE SOURCES

The present invention describes a process for treating a feedstock obtained from a renewable source, comprising a step a) of hydrotreating said feedstock, a step b) of separation into at least a light fraction and at least a hydrocarbon liquid effluent, a step c) of removing at least a portion of th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BOUCHY, Christophe, GOMEZ ALMENDROS, Mélanie, GAY, Anne-Sophie
Format: Patent
Sprache:eng
Schlagworte:
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
DETERGENTS
FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS,OILS, OR FATTY ACIDS OBTAINED THEREFROM
FATTY ACIDS FROM FATS, OILS OR WAXES
FATTY ACIDS THEREFROM
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The present invention describes a process for treating a feedstock obtained from a renewable source, comprising a step a) of hydrotreating said feedstock, a step b) of separation into at least a light fraction and at least a hydrocarbon liquid effluent, a step c) of removing at least a portion of the water from the hydrocarbon liquid effluent, a step d) of hydroconversion of at least a portion of the hydrocarbon liquid effluent, said hydroconversion step d) being characterized firstly by the use of a bifunctional catalyst comprising a molybdenum and/or tungsten sulfide phase promoted with nickel and/or cobalt and secondly by a ratio between the partial pressure of hydrogen sulfide and of hydrogen at the inlet of the hydroconversion unit of 10 less than 5×10−5 and a step e) of fractionation of the effluent obtained from step d) to obtain at least a middle distillate fraction.