EP 2920119 A1 20150923 - PURIFICATION OF OIL-POLLUTED WATER AND DEVICE SUITABLE THEREFOR
Title (en)
PURIFICATION OF OIL-POLLUTED WATER AND DEVICE SUITABLE THEREFOR
Title (de)
REINIGUNG VON MIT ÖL VERSCHMUTZTEM WASSER UND HIERFÜR GEEIGNETE VORRICHTUNG
Title (fr)
PURIFICATION D'EAU SOUILLÉE PAR DE L'HUILE ET DISPOSITIF APPROPRIÉ POUR CELA
Publication
Application
Priority
- EP 12192334 A 20121113
- EP 2013073595 W 20131112
- EP 13789327 A 20131112
Abstract (en)
[origin: EP2730548A1] The process comprises supplying mixture of oil and contaminated water to a container (48), which includes an ultrafiltration unit (52) having a membrane (30), adding protective material to the membrane using a flow path during purification of the mixture, purifying the mixture to obtain clear water (44), discharging the purified water in downstream of the membrane of ultrafiltration unit, and discharging concentrated mixture from the container by reducing oil from the clear water. The protective material is applied as a film. An additive is added to the mixture. The process comprises supplying mixture of oil and contaminated water to a container (48), which includes an ultrafiltration unit (52) having a membrane (30), adding protective material to the membrane using a flow path during purification of the mixture, purifying the mixture to obtain clear water (44), discharging the purified water in downstream of the membrane of ultrafiltration unit, and discharging concentrated mixture from the container by reducing oil from the clear water. The protective material is applied as a film. An additive is added to the mixture, and contains the protective material and a precipitating agent. The precipitating agent is added in a concentration of 1-5 mg/l, which is sufficient to form an oil separation by precipitation processes or chemical reactions. The protective material has hydrophilic micro-particles having predetermined maximum size. The mixture is supplied from a supply tank, and is supplied back to a storage tank. The protective material is removed by backwashing of the membrane against a flow direction during operation. Independent claims are included for: (1) a method for production of purified process water for promotion and/or refinery of petroleum; (2) a process for production of crude oil; and (3) a device for purification of a mixture of oil and contaminated water.
IPC 8 full level
C02F 1/44 (2006.01); B01D 61/16 (2006.01); B01D 65/08 (2006.01); C02F 1/52 (2006.01); C02F 101/32 (2006.01); C02F 103/36 (2006.01)
CPC (source: EP US)
B01D 61/16 (2013.01 - EP US); B01D 65/08 (2013.01 - EP US); C02F 1/444 (2013.01 - EP US); C02F 1/5245 (2013.01 - US); C10G 31/08 (2013.01 - EP US); E21B 43/20 (2013.01 - US); E21B 43/40 (2013.01 - EP US); B01D 65/04 (2013.01 - EP US); B01D 2321/04 (2013.01 - EP US); C02F 1/52 (2013.01 - EP US); C02F 2101/32 (2013.01 - EP US); C02F 2103/10 (2013.01 - US); C02F 2103/365 (2013.01 - EP US); C02F 2303/16 (2013.01 - US); C10G 2300/1033 (2013.01 - EP US); C10G 2300/202 (2013.01 - EP US); C10G 2300/805 (2013.01 - EP US); E21B 43/35 (2020.05 - EP US)
Citation (examination)
DE 102009028162 A1 20110210 - GWT GEORGI WASSERTECHNIK GMBH [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2730548 A1 20140514; CA 2891606 A1 20140522; CA 2891606 C 20210518; CN 104837776 A 20150812; EP 2920119 A1 20150923; MX 2015005974 A 20160205; US 10358360 B2 20190723; US 2016297692 A1 20161013; WO 2014076068 A1 20140522
DOCDB simple family (application)
EP 12192334 A 20121113; CA 2891606 A 20131112; CN 201380058880 A 20131112; EP 13789327 A 20131112; EP 2013073595 W 20131112; MX 2015005974 A 20131112; US 201314442710 A 20131112