Molecular sieve type gas separation systems

Details Molecular sieve type gas separation systems Molecular sieve type gas separation systems

B - Operations, Transporting

01

D

183/25

B01D 53/04 (2006.01) B01D 53/047 (2006.01) B64D 13/00 (2006.01) C01B 13/02 (2006.01)

Patent

CA 1248880

ABSTRACT Title: Molecular Sieve Type Gas Separation Systems The sieve beds of a molecular sieve type gas separation system are cyclically subjected to a charge/adsorption on-stream phase followed by a purge/desorption regeneration phase and each bed is arranged to be open to ambient atmospheric pressure or a pressure related thereto during the regeneration phase. A fixed logic sequencer unit provides two different overall cycle times and fixes the relative durations of each phase within the overall cycle times. A switching device, which preferably includes a flueric partial pressure sensor (Figure 2), responds to the pertaining concentration of a constituent gas in the product gas delivered by the system and switches between the two overall cycle times so as to maintain the concentration of the constituent gas in the product gas within predetermined limits.

450983

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