Thermal Amine Scrubber – Space Station Installation and Start-Up



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2020 International Conference on Environmental Systems


This paper will document the efforts to launch the CO2 removal flight experiment known as the ‘Thermal Amine Scrubber’ (TAS) to the International Space Station, installation into an EXPRESS rack in the U.S. Lab, check-out and activation of the system, and initial performance results. The 2019 ICES paper, ICES-2019-174, described the development and verification process for the TAS culminating in its delivery for launch on NG-11. Ground testing was largely focused on optimizing performance to meet requirements, while initial on-orbit operations were focused on achieving stable operation. Data comparisons between pre-delivery ground testing and on-orbit operations will be presented and discussed. Anomaly Investigations and Lessons Learned will also be discussed including a fan bearing issue which limited operation for a period of time. Lastly, potential enhancements will be identified along with plans for continued operation of the TAS.


Holden Ranz, Collins Aerospace, US
Steven Dionne, Collins Aerospace, US
John Garr, National Aeronautics and Space Administration (NASA), Johnson Space Center, US
ICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process Development
The proceedings for the 2020 International Conference on Environmental Systems were published from July 31, 2020. The technical papers were not presented in person due to the inability to hold the event as scheduled in Lisbon, Portugal because of the COVID-19 global pandemic.


Thermal, Solid amine, Scrubber, Carbon dioxide (CO2), Carbon dioxide (CO2) removal, Pressure-swing adsorption