A METHOD FOR DECREASING FEED IMPURITIES

Herein is disclosed a process for selection of a pretreatment for a renewable feedstock comprising organic nitrogen impurities prior to feeding said feedstock into catalytic hydrotreating and isomerisation. Removal of nitrogen impurities protects the catalysts of the following process steps from dea...

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Bibliographische Detailangaben
Hauptverfasser:	LIPPONEN, KATRIINA, IKONEN, ELIAS, KAKKO, TIA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY CRACKING HYDROCARBON OILS DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PERFUMES PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS 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 TRANSPORTING
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Beschreibung
Zusammenfassung:	Herein is disclosed a process for selection of a pretreatment for a renewable feedstock comprising organic nitrogen impurities prior to feeding said feedstock into catalytic hydrotreating and isomerisation. Removal of nitrogen impurities protects the catalysts of the following process steps from deactivation and prolongs the catalyst life. Some of the nitrogen impurities disclosed herein have not been found or reported previously in renewable feedstocks. L'invention concerne un procédé de sélection d'un prétraitement pour une charge d'alimentation renouvelable comprenant des impuretés azotées organiques avant l'alimentation de ladite charge d'alimentation en hydrotraitement et isomérisation catalytiques. L'élimination des impuretés azotées protège les catalyseurs des étapes de traitement suivantes à partir de la désactivation et prolonge la durée de vie du catalyseur. Certaines des impuretés azotées décrites dans la description n'ont pas été trouvées ou rapportées précédemment dans des charges d'alimentation renouvelables.