International Space Station Carbon Dioxide Removal Assembly (ISS CDRA) Troubleshooting and Evaluation

Sherif, Dina El

doi:10.4271/2004-01-2548

Cited by 9 publications

(1 citation statement)

References 4 publications

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“…Currently, packed beds of sorbent pellets are mostly used in the adsorption systems; however, recent studies have shown that these materials can be easily fluidized and/or eroded, due to both thermal cycling and mechanical vibration, and can generate fine particulates that bypass the downstream mesh filters. [9][10][11] This results in particulates buildup in downstream pumps, blowers, and other components, and has been problematic in some aerospace applications. Furthermore, these packed beds of pellets create a large pressure drop across the adsorption system resulting in high parasitic losses.…”

Section: Introductionmentioning

confidence: 99%

Compact, Lightweight Adsorber and Sabatier Reactor for CO2 Capture and Reduction for Consumable and Propellant Production

Junaedi

Hawley

Walsh

et al. 2012

42nd International Conference on Environmental Systems

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The utilization of CO 2 to produce (or recycle) life support consumables, such as O 2 and H 2 O, and to generate propellant fuels is an important aspect of NASA's concept for future, long duration planetary exploration. One potential approach is to capture and use CO 2 from the Martian atmosphere to generate the consumables and propellant fuels. Precision Combustion, Inc. (PCI), with support from NASA, continues to develop its regenerable adsorber technology for capturing CO 2 from gaseous atmospheres (for cabin atmosphere revitalization and in-situ resource utilization applications) and its Sabatier reactor for converting CO 2 to methane and water. Both technologies are based on PCI's Microlith ® substrates and have been demonstrated to reduce size, weight, and power consumption during CO 2 capture and methanation process. For adsorber applications, the Microlith substrates offer a unique resistive heating capability that shows potential for short regeneration time and reduced power requirements compared to conventional systems. For the Sabatier applications, the combination of the Microlith substrates and durable catalyst coating permits efficient CO 2 methanation that favors high reactant conversion, high selectivity, and durability. Results from performance testing at various operating conditions will be presented. An effort to optimize the Sabatier reactor and to develop a bench-top Sabatier Development Unit (SDU) will be discussed. Nomenclature

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Section: Introductionmentioning

confidence: 99%