Non-Regenerable Sorbents
Non-regenerable sorbents are materials used in spacecraft life support systems to remove carbon dioxide (CO2) from the cabin atmosphere. Unlike regenerable sorbents, non-regenerable sorbents cannot be reused after they have reached their CO2 adsorption capacity. Non-regenerable sorbents are typically made of lithium hydroxide (LiOH) or soda lime and are used in emergency situations or when regenerable sorbents are not available. Once the non-regenerable sorbent has reached its capacity, it must be replaced with a new sorbent canister. Non-regenerable sorbents are also used in space suits to remove CO2 exhaled by astronauts.
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