A purification system (1) includes a disc stack centrifugal separator (3) with a disc stack (31) made of stacked discs (33) having circumferentially spaced-apart distribution holes (39). The distribution holes are configured to distribute a contaminated product over a distribution part (41) of a curved surface area (35) of the disc stack. The distribution part extends around the circumference of the disc stack and over 20%-70% of a total distance (d) between a base periphery (37a) and a top periphery (37b) of the disc stack. At least one pressure control device (11a, 11b) is fluidly connected with at least one of a light phase outlet and a heavy phase outlet and controls a level of backpressure provided to the light phase outlet and/or the heavy phase outlet to adjust a position of an interface between a light phase and a heavy phase in the disc stack during purification.
B04B 1/08 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides avec cloisons intérieures de forme conique
B04B 7/14 - Garnitures internes, p. ex. plaques de protection pour parois de séparation de forme conique
B04B 11/02 - Alimentation ou déchargement en continuSystèmes de commande à cet effet
B04B 13/00 - Systèmes de commande spécialement conçus pour les centrifugeursCommande à programme des centrifugeurs
2.
METHOD AND SYSTEM FOR PRODUCING AT LEAST ONE OIL PRODUCT FROM WASTE OIL
A method for converting waste oil into oil products includes forwarding the waste oil to an oil treatment part of a waste oil converting system that includes one or more of the following subsystems: a decanter, a centrifuge, a chemical addition subsystem, a mixer, a filter, a settling tank, a water injection nozzle and/or a heater. Then measuring a property of the waste oil, such as density, viscosity, amount of water, amount of ash, amount of particles, and/or flash-point, using a sensor. Then adjusting one or more settings of the subsystem based on at least one measured value using a control system. Also treating the waste oil with the at least one subsystem to decrease a water content, a sludge content and/or a particle content of the waste oil, and using the control system to control an outlet flow of the treated waste oil. Also the waste oil converting system.
B01D 21/32 - Commande de la densité du liquide clair ou du sédiment, p. ex. commande optique
B01D 29/60 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants combinés dans une même structure à des dispositifs de commande de la filtration
B01D 36/04 - Combinaisons de filtres avec des bacs de décantation
C10G 31/06 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par chauffage, refroidissement ou traitement par la pression
C10G 31/08 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par traitement à l'eau
A method and a system for purification of contaminated oil. The method comprising providing contaminated oil into a disc stack centrifugal separator (3). The disc stack centrifugal separator comprises a light phase outlet chamber (33) and/or a heavy phase outlet chamber (31) in which a fluid level can be controlled. Separating the contaminated oil in the disc stack centrifugal separator (3) into a light phase and a heavy phase. Measuring one or more properties in a light phase retrieved from the disc stack centrifugal separator (3), wherein said one or more properties comprise one or more of a density, a viscosity, an amount of heavy phase content and a flow rate of the light phase. Controlling a backpressure provided to a heavy phase outlet (5b) and/or a light phase outlet (5a) of the disc stack centrifugal separator (3) and hereby controlling a fluid level in the heavy phase outlet chamber (31) and/or light phase outlet chamber (33), said controlling being dependent on at least one value of said one or more measured properties.
B04B 1/04 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides avec cloisons intérieures
B01D 17/12 - Dispositifs auxiliaires spécialement adaptés pour être utilisés avec les appareils pour séparer des liquides, p. ex. circuits de commande
B01D 21/26 - Séparation du sédiment avec emploi de la force centrifuge
B04B 1/20 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides évacuant du tambour les particules solides par une vis transporteuse ayant le même axe que le tambour et tournant par rapport à ce tambour
B04B 11/02 - Alimentation ou déchargement en continuSystèmes de commande à cet effet
B04B 13/00 - Systèmes de commande spécialement conçus pour les centrifugeursCommande à programme des centrifugeurs
The method comprises the steps of: —providing contaminated oil into a mixing system (3) comprising at least two mixers (5a, 5b, 5c) connected in parallel and at least one valve (6a, 6b, 6c) which can be controlled for allowing contaminated oil to enter one or more of the mixers (5a, 5b, 5c); —mixing the contaminated oil in the mixing system (3) wherein the step of mixing comprises measuring a pressure difference over at least one of the mixers (5a, 5b, 5c) and/or over the complete mixing system (3); and controlling the at least one valve (6a, 6b, 6c) in the mixing system (3) such that the contaminated oil is allowed to enter one or more of the mixers (5a, 5b, 5c) in dependence of the measured pressure difference.
A method and an oil purification system for purification of contaminated oil, wherein said contaminated oil comprises at least a light phase comprising oil and a heavy phase comprising water, said method comprising the steps of: —adding droplets of heavy phase into the contaminated oil; and —separating the light phase and the heavy phase of the contaminated oil in a separation device.
A method for purifying an oil comprising contaminants is provided, the method comprising the steps of: i. introducing a mixture of the oil and a separation aid through a hermetic inlet into a separation chamber of a rotating separator bowl of a centrifugal separator, the separation aid having a density higher than that of the oil, ii. separating the separation aid and contaminants absorbed and/or adsorbed therein from the oil in the separation chamber, iii. discharging oil from a light phase outlet of the separation chamber, and iv. discharging separation aid and contaminants absorbed and/or adsorbed therein from a heavy phase outlet of the separation chamber. A system and a computer program product are also disclosed.
B01D 17/12 - Dispositifs auxiliaires spécialement adaptés pour être utilisés avec les appareils pour séparer des liquides, p. ex. circuits de commande
B04B 1/08 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides avec cloisons intérieures de forme conique
7.
METHOD AND SYSTEM FOR PURIFICATION OF A CONTAMINATED PRODUCT
A purification system (1) and a method for purification of a contaminated product, said purification system (1) comprising a disc stack centrifugal separator (3) comprising a disc stack (31) comprising a number of stacked discs (33) comprising distribution holes (39) separated around a circumference of the disc (33), wherein said distribution holes (39) are sized and positioned for distributing the contaminated product to be purified over a distribution part (41) of a curved surface area (35) of the disc (33), wherein said distribution part (41) is extending around the circumference of the disc (33) and over 20%-70% of a total distance, d, between a base periphery (37a) and a top periphery (37b) of the disc. Said purification system further comprising at least one pressure control device (11a, 11b) provided in connection with at least one of the light phase outlet (5a) of the disc stack centrifugal separator (3) and the heavy phase outlet (5b) of the disc stack centrifugal separator (3), whereby a level of backpressure provided to the light phase outlet (5 a) and/or the heavy phase outlet (5b) can be controlled by controlling the at least one pressure control device (I la, 1 lb), whereby a position of an interface between a light phase and a heavy phase in the disc stack (31) during purification of the contaminated product will be adjusted in response to said controlling of the backpressure.
B04B 1/08 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides avec cloisons intérieures de forme conique
B04B 7/14 - Garnitures internes, p. ex. plaques de protection pour parois de séparation de forme conique
B04B 11/02 - Alimentation ou déchargement en continuSystèmes de commande à cet effet
A method and a waste oil recovering system for recovering waste oil into one or more oil products. The method comprises to measure one or more properties in the waste oil, wherein said one or more properties comprise one or more of a density, a viscosity, amount of water, amount of ash, amount of particles and flash-point. The method further comprises to adjust one or more settings in an oil treatment part (5) of the waste oil recovering system (1) based on at least one measured value of said one or more measured properties of the waste oil and to treat the waste oil in the oil treatment part. The method further comprises to control an outlet flow of the treated waste oil from the oil treatment part (5) to be directed to one of a number of different storages (9a, 9b, 9c) provided in the waste oil recovering system (1), wherein said controlling is provided in dependence of at least one measured value of said one or more measured properties, whereby the storages (9a, 9b, 9c) are assigned to different predefined value ranges for at least one of the properties.
A method and a system for purification of oil, wherein the method comprises the steps of:—adding to a contaminated oil provided in a preparation tank a chemical booster for boosting capturing of impurities and/or a separation of phases in the contaminated oil; —waiting for allowing different phases to be separated; —pumping content out from the preparation tank through a fluid connection; sensing at least one property of the content in the fluid connection; —controlling a valve provided in the fluid connection to transfer the content to a next step in the purification process or to another destination in dependence of the sensed at least one property.
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