[특허]Process for producing fuel grade ethanol by continuous fermentation, solvent extraction and alcohol separation

[미국특허] Process for producing fuel grade ethanol by continuous fermentation, solvent extraction and alcohol separation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C12P-007/16 C12P-007/06 C10L-001/02
출원번호	US-0534262 (1983-09-21)
발명자 / 주소	Tedder Daniel W. (Marietta GA)
출원인 / 주소	Georgia Tech Research Corporation (Atlanta GA 02)
인용정보	피인용 횟수 : 21 인용 특허 : 4

초록 ▼

Alcohol substantially free of water is prepared by continuously fermenting a fermentable biomass feedstock in a fermentation unit, thereby forming an aqueous fermentation liquor containing alcohol and microorganisms. Continuously extracting a portion of alcohol from said fermentation liquor with an organic solvent system containing an extractant for said alcohol, thereby forming an alcohol-organic solvent extract phase and an aqueous raffinate. Said alcohol is separated from said alcohol-organic solvent phase. A raffinate comprising microorganisms and unextracted alcohol is returned to the fermentation unit.

대표청구항 ▼

A continuous method of preparing alcohol, comprising: continuously fermenting with fermentation microorganisms a fermentable biomass feedstock in water in a fermentation unit, thereby forming an aqueous fermentation liquor containing alcohol; withdrawing a sludge waste and fermentation liquor comprising microorganisms and alcohol obtained during the processing of the biomass in the processing unit; supplying additional feedstock and microorganisms to said fermentation unit; continuously extracting a low-level alcohol from said fermentation liquor with a chemically stable organic solvent system containing an extractant for said alcohol and a hydrocarbon solvent for said extractant, said hydrocarbon solvent having ten or more carbons in its atom, thereby forming an alcohol-organic solvent extract phase and an aqueous raffinate; separating said alcohol from said alcohol-organic solvent phase; wherein said low-level alcohol-organic solvent extract phase from the fermentation liquor is such that the alcohol content in the remaining fermentation liquor is maintained sufficiently low so that it does not destroy the microorganisms in the fermentation liquor; and returning all material components of said aqueous raffinate comprising microorganisms and unextracted alcohol to said fermentation unit.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Roth Ernest R. (Villanova PA), Alcohol and fuel production.
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Baird James L. (Winchester MA), Direct process for the production of gasohol from fermentation mixtures.
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Muller Werner C. (Dobbs Ferry NY) Miller Franklyn D. (Cincinnati OH), Process for the acid hydrolysis of carbohydrate polymers and the continuous fermentation of the sugars obtained therefro.
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Bellamy ; Winthrop D., Production of ethanol from cellulose using a thermophilic mixed culture.
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이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

Razavi-Shirazi, Fatemeh; Dorri, Mohammad Ali; Razavi, Ameen, Bioconversion processes using water-insoluble liquids.
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Doelle Horst W. (Kenmore AUX), Conversion of sucrose to fructose and ethanol.
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Schonemann, Hans; Waibel, Brian; Krukonis, Val, Energy efficient method and apparatus for the extraction of biomolecules from dilute aqueous solution.
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Schonemann, Hans; Waibel, Brian J.; Krukonis, Val, Energy efficient method and apparatus for the extraction of lower alcohols from dilute aqueous solution.
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Waibel, Brian J. J.; Krukonis, Val J., Energy efficient separation of ethanol from aqueous solution.
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Cadwalader, Robert E.; Dieterle, Rex A., Ethanol recovery from fermentation broth.
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Fanselow,Dan L.; Johnson,Todd W., Liquid--liquid extraction system and method.
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Fanselow, Dan L.; Johnson, Todd W., Liquid-liquid extraction system and method.
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Fanselow,Dan L.; Mrozinski,James S.; Johnson,Todd W.; Lakshmi,Brinda B., Method for obtaining ethanol.
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Pavilon Stanley J. (18519 Lomond Blvd. Shaker Heights OH 44122), Method for producing ethanol from biomass.
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Kollerup Finn (Kingston CAX) Daugulis Andrew J. (Kingston CAX), Process for extractive fermentation.
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Anderson Kevin W., Process for preparing fuels, fuel substitutes, and fuel supplements from renewable resources.
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Brown, Christopher J.; Simo, Marian; Hlavacek, Vladimir, Production of dry alcohol.
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Olson, David A., Reactor pump for catalyzed hydrolytic splitting of cellulose.
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Olson, David A., Reactor pump for catalyzed hydrolytic splitting of cellulose.
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Evanko, William A.; Eyal, Aharon M.; Glassner, David A.; Miao, Fudu; Aristidou, Aristos A.; Evans, Kent; Gruber, Patrick R.; Hawkins, Andrew C., Recovery of higher alcohols from dilute aqueous solutions.
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Evanko, William A.; Eyal, Aharon M.; Glassner, David A.; Miao, Fudu; Aristidou, Aristos A.; Evans, Kent; Gruber, Patrick R.; Hawkins, Andrew C., Recovery of higher alcohols from dilute aqueous solutions.
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Evanko, William A.; Eyal, Aharon M.; Glassner, David A.; Miao, Fudu; Aristidou, Aristos A.; Evans, Kent; Gruber, Patrick R.; Hawkins, Andrew C.; Meinhold, Peter; Feldman, Reid M. Renny; Gunawardena, Uvini; Urano, Jun, Recovery of higher alcohols from dilute aqueous solutions.
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Moore Raymond H. (Richland WA) Eakin David E. (Kennewick WA) Baker Eddie G. (Richland WA) Hallen Richard T. (Richland WA), Separation and concentration of lower alcohols from dilute aqueous solutions.
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Guggenheim,Thomas Link; Mongilio,David Anthony, System to isolate dianhydrides.
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Tedder Daniel W. (Marietta GA), Two cycle process for producing fuel-grade ethanol from dilute aqueous mixtures.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Process for producing fuel grade ethanol by continuous fermentation, solvent extraction and alcohol separation 원문보기