Quote: (Originally Posted by joshhan2000)
Here is a list that I am put together by no mean is it complete.
The other alkali hydroxides have been used in scrubbers - LiOH most famously in the CisLunar but Na and KOH are of historical interest as used in the Fluess unit.
Super and per-oxides have and are used in Russian units and on board the Mir space station. They have an alarming tendency to catch fire when wet.
Organic amines are used on modern scrubbers in nuclear subs and the international space station. They can be regenerated easier as can silver/zinc hydroxides.
Personally I'd like to use a microwave plasma for the direct cracking of CO2 back to its elements rather than relying on messy chemistry.
