[특허]Separation of water from Fischer-Tropsch product

[미국특허] Separation of water from Fischer-Tropsch product 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/22
출원번호	US-0880336 (2004-06-28)
등록번호	US-7276105 (2007-10-02)
발명자 / 주소	Pruet,Randall B.
출원인 / 주소	Chevron U.S.A. Inc.
인용정보	피인용 횟수 : 4 인용 특허 : 16

초록 ▼

A method for separating water from a Fischer-Tropsch reactor product stream in a cost effective and energy efficient manner which comprises feeding a Fischer-Tropsch product stream to a separation membrane, preferably a ceramic membrane, and recovering water vapor from the downstream permeate side o

대표청구항 ▼

What is claimed is: 1. A method for separating water from a Fischer-Tropsch stream comprising: a) feeding the Fischer-Tropsch stream to a separation membrane having an upstream retentate side and a downstream permeate side, with the stream being fed to the upstream retentate side; b) recovering a retentate stream reduced in water content from the upstream retentate side of the separation membrane; c) recovering water from the downstream permeate side of the separation membrane; d) feeding the retentate stream reduced in water content to a condenser and a separation unit; e) recovering a hydrogen-rich gas from the separation unit; and f) using the hydrogen-rich gas as a hydrogen-rich sweep gas by passing the gas past the downstream permeate side of the separation membrane. 2. The method of claim 1, wherein the stream fed to the separation membrane is an overhead vapor stream, and water vapor is recovered from the downstream permeate side of the separation membrane. 3. The method of claim 1, wherein the separation membrane is a ceramic membrane. 4. The method of claim 2, further comprising feeding the water vapor recovered to a thermal oxidizer. 5. A method for separating water from a Fischer-Tropsch stream comprising: a) feeding the Fischer-Tropsch stream to a separation membrane having an upstream retentate side and a downstream permeate side, with the stream being fed to the upstream retentate side; b) recovering a retentate stream reduced in water content from the upstream retentate side of the separation membrane; c) recovering water vapor from the downstream permeate side of the separation membrane; and d) feeding a sweep gas to the downstream permeate side of the separation membrane to thereby remove the water permeate, wherein the sweep gas is a hydrogen-rich tail gas separated from a Fischer-Tropsch product stream. 6. A method for separating water from a Fischer-Tropsch stream comprising: a) feeding the Fischer-Tropsch stream to a separation membrane having an upstream retentate side and a downstream permeate side, with the stream being fed to the upstream retentate side; b) recovering a retentate stream reduced in water content from the upstream retentate side of the separation membrane; c) recovering water from the downstream permeate side of the separation membrane; d) feeding the water vapor to a condenser and a separation unit; e) recovering a hydrogen-rich gas from the separation unit; and f) using the hydrogen-rich gas as a hydrogen-rich sweep gas by passing the gas past the downstream permeate side of the separation membrane to thereby remove the water permeate. 7. A method for separating water vapor from a Fischer-Tropsch overhead product comprising: a) feeding the Fischer-Tropsch overhead product to a ceramic membrane comprising an upstream retentate side and a downstream permeate side; b) feeding a hydrogen-rich sweep gas to the downstream permeate side of the ceramic membrane in order to recover water vapor; c) feeding the recovered water vapor and hydrogen-rich gas to a thermal oxidizer; d) recovering a gas reduced in water content from the upstream retentate side of the ceramic membrane; e) feeding the gas reduced in water content to a condenser and a separation unit; f) recovering a hydrogen-rich gas from the separation unit; and g) using at least a portion of the hydrogen-rich gas as the hydrogen-rich sweep gas.

이 특허에 인용된 특허 (16) 인용/피인용 타임라인 분석

Mauldin Charles H. (Baton Rouge LA), Cobalt catalysts for the conversion of methanol to hydrocarbons and for Fischer-Tropsch synthesis.
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Goldsmith Robert L. (Belmont MA), Cross-flow filtration device with filtrate chambers and internal filtrate collection volume.
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Stobbe Per,DKX ; Bishop Bruce A. ; Goldsmith Robert L., Cross-flow filtration device with filtrate conduit network and method of making same.
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Goldsmith Robert L. (323 Waverly St. Belmont MA 02178), Cross-flow filtration device with filtrate flow conduits and method of forming same.
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Goldsmith Robert L. (Belmont MA), Cross-flow filtration device with filtrate network and method of forming same.
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Shah, Lalit S., Fischer-Tropsch wastewater utilization.
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Morgan William H. (Catawissa MO) Bleikamp Lawrence K. (St. Peters MO) Kalthod Dilip G. (St. Louis MO), Hollow fiber membrane dryer with internal sweep.
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Goldsmith Robert R. (Belmont MA) Bishop Bruce A. (Cambridge MA), Impregnating porous inorganic membrane with reactive inorganic binder.
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Landis, Stephen R.; Espinoza, Rafael L.; Mohedas, Sergio R.; Belt, Barbara A.; Melquist, Vincent H.; Goodwin, III, Ralph T., Managing hydrogen and carbon monoxide in a gas to liquid plant to control the H2/CO ratio in the Fischer-Tropsch reactor feed.
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Nielsen Kai H. (Greve Strand DKX) Jensen Frands E. (Ganlose DKX), Method and an apparatus for continuously purifying an oxygen-containing gas for combustible contaminants.
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Goldsmith Robert L. (Belmont MA), Method of forming a porous inorganic membrane on a porous support using a reactive inorganic binder.
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Goldsmith Robert L. (Belmont MA), Porous inorganic membrane with reactive inorganic binder.
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Rafael L. Espinoza ZA; Jesus M. Santamaria ES; Miquel A. Menendez ES; Joaquin Coronas ES; Silvia Irusta AR, Production of hydrocarbons.
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Deckman Harry William ; Corcoran ; Jr. Edward William ; Czarnetzki Lothar R.,NLX ; McHenry James Alexander, Separation process using zeolite membrane.
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Kennedy Paul Edwin, System and method for converting light hydrocarbons to heavier hydrocarbons with improved water disposal.
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Friedman Louis D. (New Brunswick NJ), Waste water processing.
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이 특허를 인용한 특허 (4) 인용/피인용 타임라인 분석

Schuetzle, Robert; Schuetzle, Dennis, Catalysts, related methods and reaction products.
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Wallace, Paul Steven, Method and system for treating Fishcher-Tropsch reactor tail gas.
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Yajima, Kenji; Nakayama, Kunio; Niino, Makiko; Tomita, Toshihiro, Method of dehydration, dehydrating apparatus, and membrane reactor.
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Miglio, Roberta; Locatelli, Lino, Process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction.
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[미국특허] Separation of water from Fischer-Tropsch product 원문보기