High conversion hydroprocessing using multiple pressure and...

C - Chemistry – Metallurgy – 10 – G

Patent

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Details

C10G 45/00 (2006.01)

Patent

CA 2599717

In the refining of crude oil, hydroprocessing units such as hydrotreaters and hydrocrackers are used to remove impurities such as sulfur, nitrogen, and metals from the crude oil. They are also used to convert the feed into valuable products such as naphtha, jet fuel, kerosene and diesel. The current invention provides very high to total conversion of heavy oils to products in a single high-pressure loop, using multiple reaction stages. A hot high pressure separator is located between the first and second reaction stages. Overhead from the separator is treated in a distillate upgrader, which may operate in co-current or countercurrent mode.

L'invention concerne le raffinage du pétrole brut, dans lequel sont utilisés des dispositifs d'hydrotraitement et des hydrocraqueurs afin d'éliminer les impuretés telles que le soufre, l'azote, et les métaux du pétrole brut. Ceux-ci sont également utilisés pour convertir l'alimentation en produits précieux tels que le naphte, le carburéacteur, le kérosène et le diesel. L'invention permet d'obtenir une très haute conversion ou une conversion totale des pétroles lourds en produits dans une seule boucle haute pression, à l'aide de multiples étapes de réaction. Un séparateur haute pression à chaud est situé entre le premier et le second étage de réaction. Le distillat de tête du séparateur est traité dans une installation de traitement de distillat, pouvant être exploitée à co-courant ou à contre-courant.

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