Methods and system for producing co 2 enriched streams from air streams
By integrating TSA and PSA zones with cryogenic distillation in air separation plants, the process efficiently captures CO2 from air streams, addressing DAC limitations and achieving significant CO2 capture capacity for carbon reduction.
WO2026117383A1PCT designated stage Publication Date: 2026-06-04UOP LLC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- UOP LLC
- Filing Date
- 2025-11-14
- Publication Date
- 2026-06-04
Smart Images
Figure US2025055585_04062026_PF_FP_ABST
Abstract
Processes and systems for providing a CO2 enriched stream from an air stream, by: selectively adsorbing, in a first separation zone, CO2 and H2O in an air stream and providing a CO2 and H2O depleted gas stream; separating, in a second separation zone, the CO2 and H2O depleted gas stream and providing an N2 enriched stream, an O2 enriched stream, and an N2 enriched regeneration stream; heating the N2 enriched regeneration stream to provide a heated N2 enriched regeneration stream; selectively desorbing, in the first separation zone, the CO2 and H2O using the heated N2 enriched regeneration stream and providing a spent regeneration gas stream; drying the spent regeneration gas stream to remove H2O and providing a dried spent regeneration gas stream; and separating, in a third separation zone, the CO2 from the dried spent regeneration gas stream to provide a CO2 enriched stream.
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