C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/04 (2006.01) B01D 53/04 (2006.01) B01D 53/22 (2006.01) B01D 53/26 (2006.01) B01D 53/86 (2006.01)
Patent
CA 2043910
- 32 - IMPROVED MEMBRANE NITROGEN PROCESS AND SYSTEM Abstract of the Disclosure Feed air is separated in a membrane system, with recovered nitrogen being purified in a deoxo unit and dried in an adsorbent dryer using high temperature purge gas. The heat generated in the deoxo unit can be used to satisfy the thermal energy requirements of dryer regeneration, without decrease in product recovery. Membrane permeate gas can be used for purge at high purge/feed ratio to reduce the energy requirements of bed regeneration. D-16149
Haas Oscar W.
Notaro Frank
Prasad Ravi
Thompson David R.
Praxair Technology Inc.
Sim & Mcburney
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