POLYALPHAOLEFINS BY OLIGOMERIZATION AND ISOMERIZATION
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...
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Format | Patent |
Language | English French |
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04.10.2012
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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. |
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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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DocumentTitleAlternate | POLYALPHA-OLÉFINES PAR OLIGOMÉRISATION ET ISOMÉRISATION |
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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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