Refrigeration – Processes – Circulating external gas
Patent
1976-12-16
1979-01-09
Yudkoff, Norman
Refrigeration
Processes
Circulating external gas
62 30, 62 39, F25J 304
Patent
active
041336623
ABSTRACT:
For the production of high pressure O.sub.2 by two-stage low-temperature rectification wherein prior to said rectification the air is subjected to a preliminary purification step, compressed, and cooled by heat exchange with separation products, the improvement of splitting the air feed prior to cooling; further compressing a split minor portion of the air feed; at least partially liquefying said further compressed air feed in a condenser-evaporator in indirect heat exchange contact with vaporizing oxygen product, the condenser-evaporator being at least functional separate and distinct from the rectification column and under a higher pressure on the oxygen side than the sump of the low pressure stage of the rectification column; passing resultant at least partially liquefied air into the high pressure stage of the rectification column; cooling a split major portion of the air feed without further compressing; and passing resultant cooled major portion of the air feed into the high pressure stage of the rectification column.
REFERENCES:
patent: 2918802 (1959-12-01), Grunberg
patent: 3079759 (1963-03-01), Schilling
patent: 3086371 (1963-04-01), Schilling et al.
patent: 3110155 (1963-11-01), Schuftan
patent: 3236059 (1966-02-01), Bernstein
patent: 3251190 (1966-05-01), Seidel
patent: 3258930 (1966-07-01), Jakob
patent: 3327488 (1967-06-01), Pervier
Linde Aktiengesellschaft
Yudkoff Norman
LandOfFree
Production of high pressure oxygen does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of high pressure oxygen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of high pressure oxygen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1786924