Process for the separation of NH.sub.3 and CO.sub.2 from mixture

Details Process for the separation of NH.sub.3 and CO.sub.2 from mixture Process for the separation of NH.sub.3 and CO.sub.2 from mixture

1979-04-16

1981-02-17

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 48, 55 89, B01D 5314, B01D 1900

Patent

active

042512352

ABSTRACT:
An improved process for the separate recovery of substantially pure ammonia and substantially pure carbon dioxide from mixtures containing ammonia and carbon dioxide, and possibly water, such as are obtained as by-products in the manufacture of melamine from urea or the synthesis of urea from ammonia and carbon dioxide. The by-product mixture is introduced into a process loop having an ammonia separation zone, a carbon dioxide separation zone and a desorption zone, the zone to which the mixture is initially fed being dependent upon its composition. The separation is effected by maintaining a system pressure differential between the ammonia and carbon dioxide separation zones, or adding diluting water to the carbon dioxide separation zone. The efficiency of the separation is enhanced by introducing an ammonia containing gaseous phase into the bottom of the carbon dioxide separation zone.

REFERENCES:
patent: 2812829 (1957-11-01), Marullo et al.
patent: 2992703 (1961-07-01), Vasan et al.
patent: 3112177 (1963-11-01), Fujise et al.
patent: 3315442 (1967-04-01), Yuan et al.
patent: 3972693 (1976-08-01), Wiesner et al.
patent: 4013431 (1977-03-01), Berkel et al.
patent: 4060591 (1977-11-01), Garber et al.

Affiliated with

Also associated with

Rating

Process for the separation of NH.sub.3 and CO.sub.2 from mixture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the separation of NH.sub.3 and CO.sub.2 from mixture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the separation of NH.sub.3 and CO.sub.2 from mixture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2260236