Abstract A feedstock of one or more C4 to C24 alpha olefins is oligomerized with a metallocene catalyst system to form a polyalphaolefin product mixture. At least a portion of the polyalphaolefin product mixture is then isomerized in the presence of an acid catalyst to form an isomerized polyalphaolefin. The polyalphaolefin may also by hydrogenated, either simultaneously with isomerization or afterwards. The resulting polyalphaolefin has a kinematic viscosity at 100°C of between 1 cSt and 20 cSt and reduced pour point in comparison to the pre-isomerized product. Une charge d'une ou de plusieurs alpha-oléfines C4 à C24 est oligomérisée avec un système de catalyseur métallocène pour former un mélange de produits polyalpha-oléfiniques. Une partie au moins du mélange de produits polyalpha-oléfiniques est ensuite isomérisée en présence d'un catalyseur d'acide pour former une polyalpha-oléfine isomérisée. La polyalpha-oléfine peut également être hydrogénée, soit simultanément à l'isomérisation, soit après. La polyalpha-oléfine obtenue a une viscosité cinématique à 100°C entre 1 et 20 cSt et un point de coulage réduit comparativement au produit pré-isomérisé.
AbstractList A feedstock of one or more C4 to C24 alpha olefins is oligomerized with a metallocene catalyst system to form a polyalphaolefin product mixture. At least a portion of the polyalphaolefin product mixture is then isomerized in the presence of an acid catalyst to form an isomerized polyalphaolefin. The polyalphaolefin may also by hydrogenated, either simultaneously with isomerization or afterwards. The resulting polyalphaolefin has a kinematic viscosity at 100°C of between 1 cSt and 20 cSt and reduced pour point in comparison to the pre-isomerized product. Une charge d'une ou de plusieurs alpha-oléfines C4 à C24 est oligomérisée avec un système de catalyseur métallocène pour former un mélange de produits polyalpha-oléfiniques. Une partie au moins du mélange de produits polyalpha-oléfiniques est ensuite isomérisée en présence d'un catalyseur d'acide pour former une polyalpha-oléfine isomérisée. La polyalpha-oléfine peut également être hydrogénée, soit simultanément à l'isomérisation, soit après. La polyalpha-oléfine obtenue a une viscosité cinématique à 100°C entre 1 et 20 cSt et un point de coulage réduit comparativement au produit pré-isomérisé.
Author PAFFORD, BERNIE, J
WU, MARGARET, M
STAVENS, KEVIN, B
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PAFFORD, BERNIE, J
WU, MARGARET, M
STAVENS, KEVIN, B
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Snippet A feedstock of one or more C4 to C24 alpha olefins is oligomerized with a metallocene catalyst system to form a polyalphaolefin product mixture. At least a...
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SubjectTerms CHEMISTRY
COMPOSITIONS BASED THEREON
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
LUBRICATING COMPOSITIONS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
MINERAL WAXES
ORGANIC MACROMOLECULAR COMPOUNDS
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
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
Title POLYALPHAOLEFINS BY OLIGOMERIZATION AND ISOMERIZATION
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