[특허]Oxygen enrichment process

Oxygen enrichment process 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/02
출원번호	US-0423995 (1973-12-12)
발명자 / 주소	Drissel Gerald M. (Allentown PA) Sircar Shivaji (Allentown PA)
출원인 / 주소	Air Products and Chemicals, Inc. (Allentown PA 02)
인용정보	피인용 횟수 : 33 인용 특허 : 0

초록 ▼

Ambient air, during an on-stream period, is passed through a first adsorbent bed removing moisture and carbon dioxide and then through a second bed of adsorbent selective for retention of nitrogen, the oxygen-rich effluent being collected in an expandable receiver. Desorption of both beds is effected by reducing the pressure at the inlet end of the first bed causing desorbed nitrogen from the second bed to pass through the first bed, desorbing moisture and CO2 therefrom. Further removal of moisture and CO2 from the first bed is then effected by lowering the pressure of that bed further, while the second bed is restored to its on-stream pressure by admission of enriched oxygen thereto from the expandable receiver.

대표청구항 ▼

In a method for regenerating adsorbents reduced in sorbent capacity during use in an oxygen enrichment vacuum swing gas separation and purification system utilizing a first bed of absorbent effective in adsorption of carbon dioxide and water and a second bed of adsorbent selective in retention of nitrogen as opposed to oxygen, said system operating on a cycle including a sorbtive gas sEparation and purification period and a regeneration period during which charge gas flow is discontinued, the improvement in regeneration which comprises, a. applying a vacuum to the inlet end of said first bed while maintaining flow communication between said first bed and said second bed, b. continuing application of said vacuum to said beds and attaining a reduced intermediate pressure of less than 60 mm. Hg, thereby desorbing gases from said beds including substantially all of the nitrogen from said second bed, c. discontinuing flow communication between said second and said first beds while continuing vacuum application to said first bed to a lower terminal pressure at least 10mm. Hg below said intermediate pressure thereby desorbing any residual moisture and carbon dioxide from said first bed, d. repressuring said second bed with product gas to about sorption cycle pressure during said continuing vacuum application to said first bed, e. discontinuing vacuum application to said first bed and repressuring said first bed to about sorptive cycle pressure, f. re-establishing flow communication between said first bed and said second bed and resuming the charge gas flow for sorbtive gas separation and purification.

이 특허를 인용한 특허 (33)

Jntgen Harald (Essen DEX) Knoblauch Karl (Essen DEX) Reichenberger Jrgen (Essen DEX) Schrter Hans-Jrgen (Essen DEX), Adsorption-desorption process for the recovery of hydrogen.
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Schmidt William P. (Allentown PA) Kumar Ravi (Allentown PA) Abel Alan D. (Allentown PA), Adsorptive nitrogen generation utilizing multiple adsorption beds.
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Schmidt William P. (Allentown PA) Kumar Ravi (Allentown PA) Abel Alan D. (Allentown PA), Adsorptive separation utilizing multiple adsorption beds.
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Sircar Shivaji (Allentown PA), Air fractionation by pressure swing adsorption.
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Sircar, Shivaji; Conrad, Roger R.; Ambs, William J., Binary ion exchanged type X zeolite adsorbent.
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Koch, William R., Control system for air fractionation by selective adsorption.
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Thompson, Loren M.; Nelson, James E.; Voltenburg, Jr., Robert R., Damping apparatus for scroll compressors for oxygen-generating systems.
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Kawai, Masato; Nakamura, Akihiro; Nagasaka, Tooru; Hayashida, Shigeru, Gas separating and purifying method and its apparatus.
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Sircar Shivaji (Wescosville PA) Ambs William J. (Swarthmore PA) Conrad Roger R. (Trexlertown PA), Gas separation kinetics in commercial pellets.
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Glenn Gary S. (Seattle WA) Rajpaul Vinod K. (Bellevue WA) Yurczyk Roger F. (Kent WA), Integrated system for generating inert gas and breathing gas on aircraft.
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Tedford ; Jr. Richard A. (Middletown CT), Method and apparatus for fractioning oxygen.
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Tezock, Mathias, Method for purifying germanium hydrides.
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Thompson, Loren M.; Chekal, Michael P; Dedecker, Paul G; Nelson, James E., Method of determining the purity of oxygen present in an oxygen-enriched gas produced from an oxygen delivery system.
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Sato Toru (Yonago JPX), Method of producing oxygen rich gas utilizing an oxygen concentrator having good start-up characteristics.
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Knaebel, Seth Pemberton, Moisture mitigation in PSA air fractionation.
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Ritter Robert A. (5108 Varscliff Rd. NW. Calgary ; Alberta CAX), Multiple vessel cascade gas enrichment system.
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Frey Bill (Ellicott City MD) Haynie Mark (Glen Burnie MD) Psaras John (Arnold MD), Nitrogen generation system.
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Campbell Michael J. (Clarence Center NY) Smolarek James (Boston NY) Pietruszewski John J. (Buffalo NY), Oxygen enriched air system.
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Gauthier William D. (Sylvania OH) Hendricks Merl J. (Pemberville OH) Babcock Robert L. (Toledo OH), Oxygen enrichment system for medical use.
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Dechene, Fernand J., Oxygen generator with two compressor stages.
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Song, Yuwen, Oxygen production process using three-stage pressure swing adsorption plants.
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Armond John Walter (Great Bookham EN), Oxygen-enriched air.
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Byrd, Gary N.; Phillis, Timothy C., Pressure swing adsorption dryer for pneumatically driven pressure intensifiers.
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Kratz Wilbur C. (Macungie PA) Sircar Shivaji (Wescosville PA), Pressure swing adsorption process for a medical oxygen generator for home use.
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Hagiwara Zenzi (Kusatsu JPX) Yamamoto Tatuo (Kusatsu JPX) Kurozumi Hiroshi (Sakai JPX), Process for extraction of highly purified oxygen.
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Haruna Kazuo (Kakogawa JPX) Hayashi Saburo (Kakogawa JPX), Process for producing high concentration oxygen by a pressure-swing-adsorption method.
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Kratz Wilbur C. (Macungie PA) Sircar Shivaji (Wescosville PA), Production of oxygen enriched air.
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Golden Timothy Christopher ; Taylor Fred William ; Johnson Leighta Maureen ; Malik Nasim Hassan,GBX ; Raiswell Christopher James,GBX, Purification of air.
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Kumar Ravi (Allentown PA), Removal of water and carbon dioxide from atmospheric air.
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Robert Banks GB, Selective adsorption of components of a gas mixture.
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Reiss Gerhard (Leverkusen DEX), Separation of gas mixtures by vacuum swing adsorption (VSA) in a two-adsorber system.
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Stanford Raymond A. (Rock Island IL), Super-enriched oxygen generator.
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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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이 특허를 인용한 특허 (33)

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