Process for the separation and recycling of NO.sub.x gas constit

Details Process for the separation and recycling of NO.sub.x gas constit Process for the separation and recycling of NO.sub.x gas constit

1983-07-08

1985-08-06

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 62, 55 68, 55 75, B01D 5304

Patent

active

045333653

ABSTRACT:
For the separation and recycling of NO.sub.x gas constituents through adstion and desorption on a molecular sieve the molecular sieve is passed through in sequential, alternating process steps. Initially, the NO.sub.x is retained up to saturation of the molecular sieve. Thereafter the molecular sieve is regenerated through the introduction of gas. In order to reduce the demands during scavenging of the molecular sieve, and then to facilitate the provision of a closed separating and recycling system, the molecular sieve for regeneration is heated to a temperature for desorbing the adsorbed NO.sub.x and scavenged with a portion of the waste gas containing the NO.sub.x which is to be cleaned. The scavenging gas flow is recycled after passing through the molecular sieve.

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