Browse Publications Technical Papers 2004-01-2445

An Advanced CO 2 Removal and Reduction System 2004-01-2445

The recovery of oxygen from a concentrated stream of carbon dioxide (CO2) offers significant advantage to long duration manned space missions by reducing the requirement for consumables.
TDA Research, Inc. (TDA) has developed a chemical absorbent-based system to carry out CO2 removal and CO2 reduction for the Environmental Control and Life Support System (ECLSS) at the International Space Station (ISS). The system eliminates interfacing problems associated with the currently operational CO2 Removal Assembly (CDRA) and planned CO2 Reduction Assembly (CRA). This paper discusses the plans for TDA’s CO2 removal and CO2 reduction system. A high capacity, long-life CO2 sorbent was developed and tested under representative conditions. In addition, the performance of a state-of-the-art catalyst for CO2 reduction to water and methane at the conditions of interest was tested.


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