Accession Number : AD0714062

Title :   Closed Sabatier Oxygen-Reclamation System.

Descriptive Note : Final rept. 1 Mar-31 Dec 69,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO COLUMBUS LABS

Personal Author(s) : Kim,Byung C. ; Clifford,John E.

Report Date : JUL 1970

Pagination or Media Count : 104

Abstract : A Closed Sabatier System for oxygen recovery from carbon dioxide was designed. Design analysis was based on a three-man engineering prototype that consists of the following principal subsystems: a water-vapor electrolysis/Sabatier unit, an electrochemical hydrogen-stripper/Sabatier unit, a continuous catalytic methane decomposition unit, and a water-vapor transfer unit. The electrochemical cell designs utilize Pd-25Ag hydrogen-diffusion electrodes in tubular form containing Sabatier catalyst for integrated system operation. All components are designed for gravity-independent operation with a minimum of critical rotating parts. The electrochemical units operate at about 200C, and the methane decomposition unit at 850C. System weight is about 90 kg with a power requirement of less than 1 kw for designed operation with 99 percent recovery of the oxygen value in the carbon dioxide feed. (Author)

Descriptors :   (*LIFE SUPPORT, *OXYGEN), (*CARBON DIOXIDE, *REDUCTION(CHEMISTRY)), (*WATER VAPOR, *ELECTROLYSIS), (*METHANE, REDUCTION(CHEMISTRY)), CONFINED ENVIRONMENTS, RECLAMATION, SPACECRAFT CABINS, DESIGN, COMPUTER PROGRAMMING, GAS FLOW, HYDROGEN, DECOMPOSITION, CATALYSTS, PALLADIUM ALLOYS, SILVER ALLOYS, HEAT TRANSFER

Subject Categories : Industrial Chemistry and Chemical Processing
      Life Support Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE