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Space Forum / Space Flight / October 2005Question about air processing on ISS
I read a news item about the original air processing machine on the ISS having been broken for some time, and the astronauts depending on the older "oxygen candles". Did the origninal machine produce Oxygen by cracking Carbon Dioxide? If so, what was the chemical (electrochemical?) process involved?  SignaturePlease reply to: | "Any sufficiently advanced incompetence is pciszek at panix dot com | indistinguishable from malice." Autoreply is disabled | > I read a news item about the original air processing machine on the > ISS having been broken for some time, and the astronauts depending > on the older "oxygen candles". Did the origninal machine produce > Oxygen by cracking Carbon Dioxide? If so, what was the chemical > (electrochemical?) process involved? The device you are talking about is called Elektron. When it works, it gets oxygen from water using electrolysis. The water is normally condensate collected from by the stations air conditioners. The H2 is vented overboard. See here <http://www.jamesoberg.com/elektron2_tec.html> for some more pictures and descriptive text. CO2 is removed by two other devices (one US and one Russian) and dumped overboard. > I read a news item about the original air processing machine on the > ISS having been broken for some time, and the astronauts depending > on the older "oxygen candles". Did the origninal machine produce > Oxygen by cracking Carbon Dioxide? No, hydrolysis of water. > > I read a news item about the original air processing machine on the > > ISS having been broken for some time, and the astronauts depending > > on the older "oxygen candles". Did the origninal machine produce > > Oxygen by cracking Carbon Dioxide? > > No, hydrolysis of water. Water does not lyse itself. The above should probably read, "electrolysis of water". --- Graham Cowan, former hydrogen fan http://www.eagle.ca/~gcowan/Paper_for_11th_CHC.html boron as energy carrier: real-car range, nuclear cachet |
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