B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
B08B 9/093 (2006.01)
Patent
CA 2652255
The invention concerns a system for putting back in suspension a sediment that has, by deposition, formed a layer (3) on the bottom (1b) of a tank (1) with a floating roof (2) containing crude oil, said device comprising: - at least one pipe (11) for sucking out and re-injecting the oil contained in said tank (1); - a pump (7) for providing circulation of the oil in said pipe (11); - a filtration device (9) intended to eliminate the inorganic elements contained in the crude oil; and ~ injection lances (5) each comprising at least one injection orifice (8a, 8b, 8c) sending a jet in the direction of the layer of sediment; the filtration device (9) comprises at least a first (15a) and a second filter (15b) mounted in parallel and connected to the suction and re-injection pipe (11) by means of a switching device (16, 17) for directing the flow of oil selectively to the first (15a) or second filter (15b). The invention also concerns a method of putting a layer of sediment back in suspension.
L'invention concerne un système de remise en suspension d'un sédiment qui a, par dépôt, formé une couche (3) sur le fond (1b) d'une cuve (1) à toit flottant (2) renfermant du pétrole brut, ledit dispositif comportant: - au moins un conduit (11) d'aspiration et de réinjection du pétrole contenu dans ladite cuve (1); - une pompe (7) permettant d'assurer la circulation du pétrole dans ledit conduit (11); - un dispositif de filtration (9) destiné à éliminer les éléments inorganiques contenus dans le pétrole brut; et - des lances d'injection (5) comprenant chacune au moins un orifice (8a, 8b, 8c) d'injection envoyant un jet en direction de la couche de sédiment; Le dispositif de filtration (9) comprend au moins un premier (15a) et un second filtre (15b) montés en parallèle et connectés au conduit (11) d'aspiration et de réinjection au moyen d'un dispositif de commutation (16,17) permettant de diriger le flux de pétrole sélectivement vers le premier (15a) ou le second filtre (15b). L'invention concerne également un procédé de remise en suspension d'une couche de sédiment.
Petrojet International
Smart & Biggar
LandOfFree
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