Air seperation

Details Air seperation Air seperation

1997-03-11

1998-09-22

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62924, F25J 100

Patent

active

058098020

ABSTRACT:
An air separation method and apparatus in which a flow of air is subjected to a first rectification so as to separate therefrom an oxygen fraction and a nitrogen fraction. An argon-containing stream comprising argon, oxygen, and, as an impurity, nitrogen is withdrawn from the first rectification and is subjected to a second rectification so as to separate an impure argon fraction containing nitrogen. Nitrogen impurity is stripped from a stream of the argon fraction in a stripping column. A stream of sub-cooled liquid cools a condenser associated with an upper region of the stripping column by indirect heat exchange with condensing argon-nitrogen vapor mixture, and passes out of said indirect heat exchange still in sub-cooled state.

REFERENCES:
patent: 5100447 (1992-03-01), Krishnamurthy et al.
patent: 5440884 (1995-08-01), Bonaquist
patent: 5522224 (1996-06-01), Chaney

Affiliated with

Also associated with

Rating

Air seperation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air seperation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air seperation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1612915