[특허]Membrane separation processes and systems for enhanced permeant recovery

[미국특허] Membrane separation processes and systems for enhanced permeant recovery 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C07C-007/144
출원번호	UP-0851577 (2007-09-07)
등록번호	US-7812207 (2010-11-01)
발명자 / 주소	Rice, Lynn H.
출원인 / 주소	UOP LLC
대리인 / 주소	Maas, Maryann
인용정보	피인용 횟수 : 0 인용 특허 : 31

초록

Membrane separation processes and systems are disclosed that pass a portion of the feed (102) to the permeate side of the membrane (104) to reduce membrane surface area and thus provide economically attractive processes and systems for treating large volume refinery and chemical process streams.

대표청구항 ▼

The invention claimed is: 1. A membrane separation process comprising: a. passing a fluid feed containing at least two components to be separated to a retentate side of a selective permeation membrane having a retentate side and opposing permeate side, b. maintaining a driving force across the membrane to effect separation of at least one of said components by permeation through the membrane to provide a permeate fraction on the permeate side of the membrane, c. withdrawing at least 5 mass percent of the fluid feed for admixing with at least a portion of said permeate fraction without said withdrawn portion passing through said membrane, and d. withdrawing a retentate fraction from the retentate side of the membrane, said retentate fraction having a greater concentration of the other of said at least two components than said feed. 2. The process of claim 1 wherein 5 to 40 mass percent of the fluid feed is withdrawn in step (c). 3. The process of claim 2 wherein at least 90 mass percent of the permeant in the feed is contained in the retentate fraction including the withdrawn fraction of step (c). 4. The process of claim 2 wherein the retentant fraction contains less than 10 mass percent of the permeant contained in the feed. 5. The process of claim 2 wherein the surface area of the membrane in step (a) is at least 25 percent less than that to provide, in the absence of step (c), the same amount of permeant in the retentate fraction including the withdrawn fraction of step (c), and the same concentration of permeant in the retentate fraction, all else being equal.

이 특허에 인용된 특허 (31) 인용/피인용 타임라인 분석

Davis Mark M. ; Dolan William B. ; Schmidt Robert J. ; Kuchar Paul J., Alkylation process using membrane for recovery of halides.
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Gosling Christopher D. ; Haizmann Robert S. ; Glover Bryan K., BTX from naphtha without extraction.
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Alario Fabio,FRX ; Deves Jean-Marie,FRX ; Euzen Patrick,FRX, Catalysts for use in hydrocarbon conversion reactions and containing one doping metal chosen from the group consisting o.
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Timothy D. Foley ; Stephen W. Sohn, Ethylene production by steam cracking of normal paraffins.
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Koros, William J.; Vu, De Q.; Mahajan, Rajiv; Miller, Stephen J., Gas separations using mixed matrix membranes.
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Karine Ragil FR; Sophie Jullian FR; Jean-Pierre Durand FR; Gerard Hotier FR; Olivier Clause FR, High octane number gasolines and their production using a process associating hydro-isomerization and separation.
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Thompson Robert W. ; Libby Bradd E. ; Berry Mary B. ; Rose Klaus,DEX ; Haas Karl-Heinz,DEX, Incorporation of zeolites into hybrid polymer matrices.
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Gillespie, Ralph D., Isomerization catalyst and processes.
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Mark M. Davis ; William B. Dolan ; Robert J. Schmidt ; Paul J. Kuchar, Isomerization process using membrane for recovery of halides.
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Zarchy Andrew S. ; Kass Lawrence Tucker, Isomerization process with improved chloride recovery.
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Evans Wayne E. (Houston TX) Stem Stephen C. (Houston TX), Isomerization process with recycle of mono-methyl-branched paraffins and normal paraffins.
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Zarchy Andrew S. (Amawalk NY) Symoniak Martin F. (Mahopac NY), Isomerization with distillation and PSA recycle streams.
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Schmidt Robert J. (Rolling Meadows IL) Rice Lynn H. (Palatine IL) Stine Laurence (Western Springs IL), Isomerization with once-through hydrogen.
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Funk Gregory A. ; Gosling Christopher D. ; Bogdan Paula L., Modified riser-reactor reforming process with prereactor.
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Verduijn Johannes Petrus,BEX ; Bons Antonie Jan,BEX ; Anthonis Marc Henri Carolina,BEX ; Czarnetzki Lothar Ruediger,BEX ; Mortier Wilfried Jozef,BEX, Molecular sieves and processes for their manufacture.
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Gottschlich Douglas ; Jacobs Marc L., Monomer recovery process.
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Gillespie Ralph D., Paraffin-isomerization catalyst and process.
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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.
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Ragil Karine,FRX ; Prevost Isabelle,FRX ; Clause Olivier,FRX ; Larue Joseph,FRX ; Millot Benoit,FRX, Process for separating a C5-C8 feed or an intermediate feed into three effluents, respectively rich in straight chain, non-branched and multi-branched paraffins.
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Rojey Alexandre (Garches FRX) Deschamps Andr (Noisy Le Roi FRX) Grehier Alain (Paris FRX) Robert Eric (Rueil-Malmaison FRX), Process for separation of the constituents of a mixture in the gas phase using a composite membrane.
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Bogdan Paula L., Selective bifunctional multimetallic reforming catalyst.
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Kulprathipanja Santi (Hoffman Estates IL) Funk Edward W. (Highland Park IL) Kulkarni Sudhir S. (Hoffman Estates IL) Chang Y. Alice (Des Plaines IL), Separation of a monosaccharide with mixed matrix membranes.
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Kulprathipanja Santi (Hoffman Estates IL) Neuzil Richard W. (Downers Grove IL) Li Norman N. (Arlington Heights IL), Separation of fluids by means of mixed matrix membranes.
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Kulprathipanja Santi (Hoffman Estates IL) Neuzil Richard W. (Downers Grove IL) Li Norman N. (Arlington Heights IL), Separation of gases by means of mixed matrix membranes.
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Haag Werner O. (Lawrenceville NJ) Tsikoyiannis John G. (Princeton NJ), Separation of mixture components over membrane composed of a pure molecular sieve.
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Baba, Shigeo; Shibata, Yukio; Kawamura, Takahiro; Takaoka, Hideo; Kimura, Tsuguo; Kousaka, Kazuo; Minato, Yoshihiro; Yokoyama, Naruo; Iida, Kozo; Imai, Tetsuya, Solid strong acid catalyst process for the production of the same and use thereof.
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Schucker Robert C. (Baton Rouge LA), Supercritical perstraction process.
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De Jesus Juan J. (Calle 5 No. G-1 Estancias de San Fernando Carolina PR 00985), Swimmers aid.
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Chau, Christophe; Sicard, Mickaël; Le Dred, Ronan, Thin zeolite membrane, its preparation and its use in separation.
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Stem Stephen C. (Houston TX) Evans Wayne E. (Houston TX), Total isomerization process with mono-methyl-branched plus normal paraffin recycle stream.
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Deckman Harry William ; Corcoran ; Jr. Edward William ; Mc Henry James Alexander ; Lai Wenyih Frank ; Czarnetzki Lothar Ruediger,NLX ; Wales William Edward, Zeolite containing composition with a selectivity enhancing coating.
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[미국특허] Membrane separation processes and systems for enhanced permeant recovery 원문보기