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Catalytic oxidation for treatment of ECLSS and PMMS waste streamsCatalytic oxidation was added to the baseline multifiltration technology for use on the Space Station Freedom in order to convert low-molecular weight organic waste components such as alcohols, aldehydes, ketones, amides, and thiocarbamides to CO2 at low temperature (121 C), thereby reducing the total organic carbon (TOC) to below 500 ppb. The rate of reaction for the catalytic oxidation of aqueous organics to CO2 and water depends primarily upon the catalyst, temperature, and concentration of reactants. This paper describes a kinetic study conducted to determine the impact of each of these parameters upon the reaction rate. The results indicate that a classic kinetic model, the Langmuir-Hinshelwood rate equation for heterogeneous catalysis, can accurately represent the functional dependencies of this rate.
Document ID
19930057446
Document Type
Conference Paper
Authors
Akse, James R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Thompson, John (NASA Marshall Space Flight Center Huntsville, AL, United States)
Scott, Bryan (NASA Marshall Space Flight Center Huntsville, AL, United States)
Jolly, Clifford (Umpqua Research Co. Myrtle Creek, OR, United States)
Carter, Donald L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1992
Subject Category
MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number
SAE PAPER 921274
Meeting Information
SAE, International Conference on Environmental Systems(Seattle, WA)
Funding Number(s)
CONTRACT_GRANT: NAS8-38490
CONTRACT_GRANT: NAS8-38038
Distribution Limits
Public
Copyright
Other