L3-HAB-ATMO-CO2
CRITICAL
ENVIRONMENTAL
Level 3 · hardware
CO2 Removal
Amine-Swing CO2 Scrubber + Sabatier Reactor
CO2 removal via amine-swing scrubber + downstream Sabatier reactor recycling CO2 to water via reaction with H2.
Purpose
CO2 removal via amine-swing scrubber + downstream Sabatier reactor recycling CO2 to water via reaction with H2.
Context
Child of L2-HAB-ATMO within the Lunar Ark system
Principles
- ▸Amine resin CO2 absorber + thermal regeneration
- ▸Sabatier reaction CO2 + 4H2 -> CH4 + 2H2O
- ▸Methane to L1-WMS for use/storage
- ▸Water to L1-WTR closed loop
- ▸Target ppCO2 <0.4 kPa
Typical implementations
- ▸ISS CDRA (Carbon Dioxide Removal Assembly)
- ▸ISS Sabatier reactor (heritage)
- ▸NASA Glenn Sabatier R&D
Lunar considerations
- ▸Closed-loop CO2 recovery critical for long mission
- ▸Sabatier closes carbon loop with imported H2 inventory
- ▸Multi-bed swing system
Specifications
Functional
| primary function | CO2 removal via amine-swing scrubber + downstream Sabatier reactor recycling CO2 to water via reaction with H2. |
| co2 removal kg per day | 2 |
| target ppco2 kpa | 0.4 |
Physical
| mass kg | 80 |
| materials | Amine resin, Inconel Sabatier reactor, 316L SS heat exchangers |
| vacuum compatibility | True |
Operational
| power consumption w | 500 |
| thermal range c | -40, 70 |
| lifetime years | 15 |
| mtbf hours | 30000 |
Interfaces
Provides
- Reduced ppCO2
- Sabatier H2O to closed loop
- Methane byproduct
Requires
- H2 for Sabatier
- Heaters (~500 W)
Cite this entry
Lunar Ark Codex. "CO2 Removal" (L3-HAB-ATMO-CO2). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-HAB-ATMO-CO2
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.