RU2003106707A

RU2003106707A - INSTALLATION FOR DEMULSING OIL PRODUCTS BY POLYURETHANE

Info

Publication number: RU2003106707A
Application number: RU2003106707/15A
Authority: RU
Inventors: Амин БЕНАХЕНУ; Жан-Пьер ПАРАН
Original assignee: Энвайроментл Эплайд Рисерч Текнолоджи Хаус-Эрт (Канада) Корпорэйшн; Мэзон де Ресерш Аплике э де Текноложи ан Матьер Энвироменталь-Корпорасьон Эрт (Канада)
Priority date: 2000-09-07
Filing date: 2001-09-07
Publication date: 2004-09-20

Claims

1. A continuous method for separating a stream of an aqueous emulsion consisting of a homogeneous aqueous phase and an anhydrous dispersed phase in order to obtain a first stream containing a collected anhydrous phase and obtaining a second stream containing a collected aqueous phase with an acceptable level of anhydrous phase, while during the implementation named continuous method:

(a) the aqueous emulsion stream is contacted with a first material based on a polymeric material in a large surface area;

(b) the first substance based on a polymeric material reaches a saturation state of the anhydrous phase of the emulsion stream;

(c) the flow of the aqueous emulsion stream does not stop until a separate anhydrous phase is formed;

(d) separating the separated anhydrous phase obtained in step (c) without stopping the flow of the aqueous emulsion;

(e) collecting the separated anhydrous phase obtained in step (d) without stopping the flow of the aqueous emulsion;

(f) collecting the purified aqueous phase stream without stopping the aqueous emulsion stream; and

(g) steps (a) to (f) are repeated to bring the purified aqueous phase stream into contact with at least a second polymer material material with a large surface area until the anhydrous phase content in the collected aqueous stream phase will not reach an acceptable level.

2. The method according to claim 1, in which the polymer used in the polymeric material is selected from the group comprising polyurethane, polypropylene, polystyrene, polyester and polyethylene.

3. The method according to claim 2, in which the polymer used in the polymer material is a polyurethane.

4. The method according to claim 1, in which the polymer material with a large surface area has a shape selected from the group comprising foam and crumb with a large surface area.

5. The method according to claim 4, in which the polymer material with a large surface area is a polymer foam in the form of particles.

6. The method according to claim 1, in which a variety of substances based on a polymeric material are used, a stream comes into contact with each of them, and the collection of the separated anhydrous phase is carried out after passing through each substance based on a polymeric material.

7. The method according to claim 1, in which a plurality of substances based on a polymeric material are used, the flow is in contact with each of them sequentially, and the collection of the separated anhydrous phase is carried out after passing through each substance based on a polymeric material with the exception of the last substance from which they are collected separated anhydrous phase.

8. The method according to claim 1, in which a sequence of substances based on polymeric materials is used, at least the last substance based on a polymeric material is Kozlowski polyurethane foam.

9. The method according to claim 1, further comprising pre-treatment steps carried out before step (a), in which:

(h) a separate anhydrous phase is formed from droplets of an anhydrous phase of sufficient size for coalescence;

(i) collecting a separate anhydrous phase; and

(j) collecting the aqueous phase and using it as a stream in step (a).