CARBON DIOXIDE COMPOSITE GETTER

摘要

An improved carbon dioxide composite getter having a CO2-permeable envelope containing powders of two active materials (11, 11′, 11″, 12, 12′, 12″) and sealed systems employing such improved carbon dioxide composite getter are described.

主权项

1. Carbon dioxide composite getter comprising a CO2-permeable envelope, defining an internal volume V, that contains powders of a first and a second active materials whose cumulative volume is Vm, characterized in that said first active material is lithium hydroxide and said second active material is lithium oxide, and the LiOH/Li2O molar ratio is comprised between 0.05 and 1.5, preferred sub-ranges of said molar ratio being respectively between 0.05 and 0.2 for higher CO2 removal capacity, between 0.7 and 1.5 for higher sorption speed and between 0.2 and 0.7 for a compromise between said two characteristics.