[특허]High quality methane gas through modified anaerobic digestion

High quality methane gas through modified anaerobic digestion 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C02C-001/14
출원번호	US-0526176 (1974-11-22)
발명자 / 주소	Ort Jay E. (Lewistown PA)
출원인 / 주소	ERA, Incorporated (Clovis NM 02)
인용정보	피인용 횟수 : 41 인용 특허 : 0

초록 ▼

Conventional anaerobic digestion, as practiced in municipal waste treatment plants, is modified to yield high-quality methane gas. Upwards of 98 percent methane is produced rather than the normal 60 to 70 percent methane (diluted with carbon dioxide). The process, wherein digestion is conducted under several atmospheres of pressure, involves the application of Henry\s Law. Digesting sludge is used as a scrubbing agent. According to one system a recirculation loop features pressure release and degassing of carbon dioxide. Degassed sludge is then pumped, under pressure, back into a digestion tank. The recirculation rate is designed to maintain sludge in the digester in an unsaturated state with regard to carbon dioxide solubility. This keeps the carbon dioxide from precipitating out of the sludge within the digestion tank and results in high purity methane production. Another system accomplishes similar results by periodically depressurizing the digestion tanks to allow carbon dioxide to escape. This configuration requires no recirculation for degassification.

대표청구항 ▼

In anaerobic digestion of organic solid waste to produce methane gas in a digester, the improvement wherein the digestion is effected, so that gas in the digester is under a pressure of at least one atmosphere in excess of atmospheric pressure so that digesting organic solid waste preferentially abs

이 특허를 인용한 특허 (41)

Ainsworth Jack L. ; Atwood Dan ; Rideout Tom, Anaerobic digester system.
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Ishida Masahiko (Hitachi JPX) Haga Ryoichi (Hitachi JPX) Odawara Yoji (Hitachi JPX), Anaerobic digestion process.
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Ort Jay E. (Lewistown PA), Anaerobic digestion process.
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Miller ; III Herman P., Anaerobic digestion system and process.
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Benjes Henry H. (Overland Park KS) Wahbeh Valery N. (Leawood KS) Stukenberg John R. (Overland ; Park KS), Apparatus for treatment of waste water.
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Benjes Henry H. (Overland Park KS) Wahbeh Valery N. (Leawood KS) Stukenberg John R. (Overland Park KS), Apparatus for treatment of waste water having selective recycle control.
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Hoyt, Stephen A., Digester method and system for processing farm waste.
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Hoyt, Stephen A., Digester method for processing farm waste.
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Gantefort, Wilhelm; Beck, Jürgen, Fermenter for generating biogas from pumpable organic material.
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Sower, Larry P., Fertilizer manufactured from animal wastes and method of producing same.
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Steven R. Woodruff, Food, animal, vegetable and food preparation byproduct treatment apparatus and process.
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Ainsworth, Jack L.; Atwood, Dan; Rideout, Tom, Integrated anaerobic digester system.
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Klass Donald L. (Barrington IL) Ghosh Sambhunath (Homewood IL), Methane production from and beneficiation of anaerobic digestion of aquatic plant material.
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Mets, Laurens, Methanothermobacter thermautotrophicus strain and variants thereof.
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Hoffland,Robert O., Method and apparatus for treating animal waste and wastewater.
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Moilliet Guy (Grabs CHX), Method and system of generating heat by biological decomposition of organic refuse.
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Rijkens Berend A. (Zeist NLX), Method for the anaerobic digestion of solid organic waste.
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Bakke, Rune; Rambekk, Morten; Johansen, Jo-Ela, Method for treatment of organic material in a two-step anaerobic biochemical reactor.
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Kanai Masakuni (No. 1-5-601 ; Arai 1-chome Nakano-ku ; Tokyo-to JPX), Method of producing methane.
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Lugo, Jose; LeSueur, Larry, Methods and systems for processing organic material.
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LeSueur, Larry; Lugo, Jose; Deering, Ken; Tryon, Victor V.; Bridges, Michael; Wilkerson, Lee; Lewis, Trevor, Methods and systems for stabilizing organic material.
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LeSueur, Larry; Lugo, Jose; Deering, Ken; Tryon, Victor V.; Bridges, Michael; Wilkerson, Lee; Lewis, Trevor, Methods and systems for stabilizing organic material.
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LeSueur, Larry; Lugo, Jose; Deering, Ken; Tryon, Victor V.; Bridges, Michael; Wilkerson, Lee; Lewis, Trevor, Methods and systems for stabilizing organic material.
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Sower, Larry P., Methods for producing fertilizers and feed supplements from agricultural and industrial wastes.
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Tai Paul Ling, Ozone injection system for a livestock building.
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Ishida ; Masahiko ; Haga ; Ryooichi ; Odawara ; Youji, Process and system for anaerobic treatment of biochemical waste.
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Morrison Jon R. (Box 315 ; Rte. 1 Dewey IL 61840), Process and system for anaerobic treatment of waste.
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Snider David R. (Vincennes IN) Graham J. Clifford (Lafayette IN), Process for methane and ammonia extraction from organic waste.
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Lawson Victor (Fetcham GB2), Process for producing useful concentrated slurries from waste material.
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Tanner Milton R. (Whittier CA), Process for removing contaminants from a stream of methane gas.
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Deeks Daniel H. (231 Franklin Ave. Sea Cliff NY 11579), Process for treating sewage effluent.
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Ely Stephen R. (Naperville IL) Olsen George P. (Naperville IL), Process for treatment of wastewater.
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Hanke Reinhart (Leoben ATX) Treso Bertalan (Leoben ATX), Process of demulsifying and converting emulsions of oils, greases and fats.
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Hayes Thomas D. (Schaumburg IL) Isaacson H. Ronald (Clarendon Hills IL) Frank James R. (Oak Park IL), Production of high methane content product by two phase anaerobic digestion.
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Hitzman Donald O. (Bartlesville OK), Production of methane by anaerobic fermentation of waste materials.
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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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Vroom Kenneth B. (26 Middleridge La. S. Rollings Hills CA 90274) Rose Michael B. (764 W. 30th St. San Pedro CA 90732), Sludge treatment.
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Codd, Dan; Hand, Jim, Soil formulation for resisting erosion.
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Knoop, Robert, System and method for thermophilic anaerobic digester process.
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Fischer David J. (Sarasota FL) Narske Richard M. (Sarasota FL) Thomas John C. (Sarasota FL) Worthington ; Jr. Edward J. (Sarasota FL), System and process for anaerobic digestion.
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연합인증

High quality methane gas through modified anaerobic digestion 원문보기

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High quality methane gas through modified anaerobic digestion 원문보기

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