CARBON DIOXIDE AND HYDROGEN RECYCLING SYSTEM Russian patent published in 2023 - IPC B64G1/48 

FIELD: spacecraft equipment.

SUBSTANCE: regenerative physical and chemical life support systems for the crew of a spacecraft (SC) with a maximally closed cycle. The proposed system contains a unit for processing carbon dioxide (CO₂) and hydrogen (H₂), a unit for electrolytic decomposition of water, a battery and an H₂ absorber with an intermetallic compound. Between the CO₂ and H₂ processing unit and the H₂ absorber, a membrane module with filter elements is installed to separate H₂ and feed it into the H₂ absorber. This module is also connected to a CO₂ adsorber, into which unreacted CO₂ and carbon monoxide (CO) formed as a result of the reaction are sent. CO, having passed through the CO₂ adsorber, is sent to the CO collection, with subsequent use in the spacecraft orbit correction engine, or is removed overboard, while the CO₂ adsorber is connected to its concentrator.

EFFECT: maximum utilization of the initial reagents and final products, preventing the accumulation of excess CO₂, eliminating the joint supply of unreacted CO₂ and H₂ and the resulting CO into the H₂ absorber, obtaining ultra-pure H₂ due to the separation of impurity gases.

1 cl, 1 dwg