[특허]Single bed pressure swing adsorption system and process

Single bed pressure swing adsorption system and process 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/04
출원번호	US-0117455 (1993-09-07)
발명자 / 주소	LaSala Kimberly A. (Clarence Center NY) Schaub Herbert (East Amherst NY)
출원인 / 주소	Praxair Technology, Inc. (Danbury CT 02)
인용정보	피인용 횟수 : 74 인용 특허 : 0

초록

A single bed, air separation PSA system utilizes an external product surge tank to supply product oxygen and purge gas to the adsorbent bed. An equalization tank supplies void space gas to the bed for repressurization purposes.

대표청구항 ▼

An improved pressure swing adsorption process for the recovery of oxygen from air, comprising: (a) passing feed air to a feed end of a single bed of adsorbent material capable of selectively adsorbing nitrogen, as the more adsorbable component of air, the pressure in the bed increasing from an intermediate pressure to an upper adsorption pressure, with oxygen, as the less adsorbable component of air, passing from a product end of the bed to a product surge tank at pressure approaching said upper adsorption pressure; (b) cocurrently depressurizing the bed to said intermediate pressure with the release of void space gas from the product end of the bed, said void space gas passing to an equalization tank; (c) countercurrently depressurizing the bed from said intermediate pressure to a lower desorption pressure, with the release of additional quantities of gas from the feed end of the bed; (d) passing a side stream of product gas from the product surge tank to the product end of the bed as purge gas to displace desorbed nitrogen from the void volume in the bed at the lower desorption pressure, the displaced desorbed nitrogen being discharged from the feed end of the bed; and (e) introducing void space gas from said equalization tank to the product end of the bed to increase the pressure in the bed from the lower desorption pressure to said intermediate pressure; and (f) passing additional quantities of feed air to the feed end of said single bed as cyclic operation of (a)-(e) above is continued, whereby product oxygen is recovered from air at the enhanced product flow rate, with the adsorptive capacity of the single bed of adsorbed material likewise being enhanced.

이 특허를 인용한 특허 (74)

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Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, Paul Scott; Rasmussen, Peter C.; Tanaka, Paul Lawrence; Webster, Martin N.; Roth, Wieslaw Jerzy; Corcoran, Edward W., Method and apparatus for removal of oil from utility gas stream.
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Grahl, Matthias, Method and device for vacuum pressure swing adsorption with temporary storage.
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Yamamoto, Morihiko; Sasano, Hiroaki; Haruna, Kazuo, Method of recovering enriched gaseous oxygen.
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Rasmussen, Peter C.; Tanaka, Paul L.; Kelley, Bruce T.; Uptigrove, Stanley O.; Deckman, Harry W., Methods of generating and utilizing utility gas.
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Deckman, Harry W.; Johnson, Robert A.; Tammera, Robert F.; Anderson, Thomas N., Methods of removing contaminants from a hydrocarbon stream by swing adsorption and related apparatus and systems.
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Deckman, Harry W.; Johnson, Robert A.; Kelley, Bruce T.; Ravikovitch, Peter I.; Anderson, Thomas N., Methods of removing contaminants from hydrocarbon stream by swing adsorption and related apparatus and systems.
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Watanabe, Hirofumi; Asakura, Keiichi, Oxygen concentrator.
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Vemula, Rama Rao; Sircar, Shivaji; Kothare, Mayuresh, Oxygen concentrator system and method.
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Sircar Shivaji ; Naheiri Tarik ; Fischer Jochen Rainer, Oxygen generation process and system using single adsorber and single blower.
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Bliss,Peter L.; Atlas, Jr.,Charles R.; Halperin,Scott Cameron, Portable oxygen concentrator.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Single bed pressure swing adsorption system and process 원문보기

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Single bed pressure swing adsorption system and process 원문보기

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