Pervaporation composite membrane for aqueous solution separation and methods for using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-015/00
B01D-029/00
B01D-039/00
B01D-071/06
C02F-001/44
출원번호
US-0859364
(2010-08-19)
등록번호
US-8597518
(2013-12-03)
발명자
/ 주소
Parnas, Richard S.
Li, Si-Yu
출원인 / 주소
The University of Connecticut
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
0인용 특허 :
26
초록▼
In one embodiment, a membrane comprises: a nonporous, hydrophobic selective layer configured to be on a feed solution side of the membrane and polyethylene layer configured to be on a permeate side of the membrane, wherein the membrane is configured to selectively separate an organic component from
In one embodiment, a membrane comprises: a nonporous, hydrophobic selective layer configured to be on a feed solution side of the membrane and polyethylene layer configured to be on a permeate side of the membrane, wherein the membrane is configured to selectively separate an organic component from an aqueous solution. In some embodiments, the method for separating an organic component from an aqueous stream can comprise: contacting a nonporous, hydrophobic selective layer of a membrane with the aqueous stream comprising the organic component, creating a vacuum on the side of the membrane comprising the support layer, permeating the organic component through the membrane into an exit chamber, and removing the organic component permeate from the exit chamber.
대표청구항▼
1. A membrane, comprising: a nonporous selective layer comprising polydimethylsiloxane;a porous support layer; anda polyethylene layer disposed between the support layer and the selective layer, wherein the polyethylene layer has a pore size of 20 micrometers to 200 micrometers; andwherein the membr
1. A membrane, comprising: a nonporous selective layer comprising polydimethylsiloxane;a porous support layer; anda polyethylene layer disposed between the support layer and the selective layer, wherein the polyethylene layer has a pore size of 20 micrometers to 200 micrometers; andwherein the membrane is configured to selectively separate an organic component from an aqueous solution. 2. The membrane of claim 1, wherein the organic component is n-butanol. 3. The membrane of claim 1, wherein the polyethylene layer has a thickness of less than or equal to 2,000 micrometers. 4. The membrane of claim 1, wherein the selective layer further comprises a hydrophobic filler. 5. The membrane of claim 4, wherein the hydrophobic filler is selected from the group consisting of activated carbon, silicalite, hydrophobic zeolite-based adsorbents, hydrophobic molecular sieves, hydrophobic polymer resin adsorbents, and combinations comprising at least one of the foregoing hydrophobic fillers. 6. The membrane of claim 4, wherein hydrophobic filler is present in the selective layer in an amount of 1 wt % to 25 wt %, based upon a total weight of the selective layer. 7. The membrane of claim 1, wherein the polyethylene layer comprises pure polyethylene. 8. The membrane of claim 1, wherein the selective layer has a thickness of 50 micrometers to 250 micrometers. 9. The membrane of claim 1, wherein the selective layer is preformed. 10. The membrane of claim 1, wherein the selective layer, the support layer and the polyethylene layer are formed separately. 11. A membrane, comprising: a nonporous selective layer comprising polydimethylsiloxane; a porous support layer; and a polyethylene layer disposed between the support layer and the selective layer, wherein the polyethylene layer has a pore size of 20 micrometers to 125 micrometers; and wherein the membrane is configured to selectively separate an organic component from an aqueous solution. 12. The membrane of claim 11, wherein the polyethylene layer has a thickness of 500 micrometers to 1,000 micrometers. 13. A method for separating an organic component from an aqueous stream, comprising: contacting a nonporous, hydrophobic selective layer of a membrane with the aqueous stream comprising the organic component;wherein the membrane comprises the nonporous, hydrophobic selective layer, a porous support layer, and a polyethylene layer having a pore size of 20 micrometers to 200 micrometers disposed between the support layer and the selective layer,creating a vacuum on the side of the membrane comprising the support layer;permeating the organic component through the membrane into an exit chamber; andremoving the organic component permeate from the exit chamber. 14. The method of claim 13, wherein the aqueous stream is maintained at a temperature above room temperature. 15. The method of claim 14, wherein the temperature is 25° C. to 50° C. 16. The method of claim 13, wherein the organic component is n-butanol. 17. The method of claim 13, further comprising condensing the organic component permeate. 18. The method of claim 13, wherein the nonporous, hydrophobic selective layer comprises polydimethylsiloxane. 19. The method of claim 13, wherein the polyethylene layer comprises pure polyethylene.
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이 특허에 인용된 특허 (26)
Sikdar Subhas K. ; Ji Wenchang ; Wang Sun-tak, Adsorbent-filled membranes for pervaporation.
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Neel Jean M. L. (Villers-les-Nancy FRX) Nguyen Quang T. (Ludres FRX) Bruschke Hartmut (NuBloch DEX), Composition membrane for separating water from fluids containing organic components by means of pervaporation.
Ward Robert S. (Lafayette CA) White Kathleen A. (Pleasant Hill CA), Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecul.
Miller Jay Fingeret (Charleston WV) Bryant David Robert (South Charleston WV) Hoy Kenneth Look (Saint Albans WV) Kinkade Nancy Ellen (Charleston WV) Zanapalidou Rachel Hilda (Winchester MA), Membrane separation process.
te Hennepe Hendrikus J. D. (Enschede NLX) Mulder Marcellinus H. V. (Enschede NLX) Smolders Cornelis A. (Hengelo NLX) Bargeman Derk (Hengelo NLX) Schrder George A. T. (Voorschoten NLX), Pervaporation process and membrane.
Meagher Michael M. ; Qureshi Nasibuddin ; Hutkins Robert, Silicalite membrane and method for the selective recovery and concentration of acetone and butanol from model ABE solut.
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