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특허 상세정보

Air separation process and system utilizing pressure-swing driers

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25J-003/02   
미국특허분류(USC) 62/13 ; 55/62 ; 62/39 ; 62/18
출원번호 US-0490639 (1974-07-22)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 52  인용 특허 : 0
초록

A cryogenic air separation system is described in which pressure-swing adsorption driers are used to remove virtually all of the moisture from the feed air prior to the passage of the feed air stream through reversing heat exchangers which remove the carbon dioxide. The reversing heat exchangers are regenerated by at least one outgoing product nitrogen stream, while the adsorption driers are regenerated by all or a portion of a low pressure stream withdrawn from the low pressure column the composition of which may be rich in either nitrogen or oxygen dep...

대표
청구항

A cryogenic air separation process for increasing the recovery of gaseous product nitrogen from an air feed stream comprising the steps of: a. drying a compressed feed air stream by passing said feed stream through a pressure-swing adsorption drier, b. cooling said dried feed air stream and removing carbon dioxide from said dried feed air stream by passing said dried feed air stream through a reversing passage of a heat exchanger in countercurrent heat exchange with at least one product stream colder than said feed air stream, c. separating said cooled f...

이 특허를 인용한 특허 피인용횟수: 52

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