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AssigneeAkzo Nobel N.V.
InventorsYuji Uragami, Eiji Yamaguchi, Hideharu Yokozuka, Kikoo Uekusa
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The invention pertains to a process for activating a hydrotreating catalyst comprising a Group VIII hydrogenation metal and a Group VI hydrogenation metal, which are substantially in the oxide form, on a carrier in which the hydrotreating catalyst is contacted with an additive which is at least one compound selected from the group of compounds comprising at least two hydroxyl groups and 2-10 carbon atoms, and the (poly)ethers of these compounds, after which the catalyst is dried under such conditions that at least 50% of the additive remains in the catalyst. The additive is preferably at least one compound selected from ethylene glycol, diethylene glycol, and polyethylene glycol, or a saccharide or a polysaccharide. The invention additionally pertains to the catalyst obtainable by this process, which shows high activity in hydrodesulphurization and hydrodenitrogenation reactions, and to the use of the catalyst in hydrotreating.
A process for activating a conventional hydrotreating catalyst comprising hydrogenation metal components on a carrier comprising one or more Group VIII hydrogenation metals substantially in the oxide form and one or more Group VI hydrogenation metals substantially in the oxide form in which the hydrotreating catalyst is contacted with an additive which is at least one compound selected from the group of compounds comprising at least two hydroxyl groups and 2-10 carbon atoms, and the ethers and polyethers of these compounds, after which the catalyst is dried under such conditions that at least 50% of the additive remains in the catalyst.
A hydrotreating catalyst which comprises hydrogenation metal components on a carrier comprising one or more Group VIII hydrogenation metal compounds and one or more Group VI hydrogenation metal compounds, wherein the catalyst is a conventional hydrotreating catalyst that additionally comprises an additive which is at least one compound selected from the group of compounds comprising at least two hydroxyl groups and 2-10 carbon atoms, and the ethers and polyethers of these compounds, wherein the additive is incorporated into the catalyst when said one or more Group VIII hydrogenation metal compounds and said one or more Group VI hydrogenation metal compounds are substantially in the oxide form.
Dependencies are inferred from the claim text.