In this work, three kinds of pyridium-based ionic liquids were synthesized as new solvents for CO2 capture. Their physical properties and CO2 absorbing abilities were measured, calculated and analyzed. The cycling abilities and absorbing principle of these liquids were also discussed. The results shows the three kinds of ionic liquids can absorb CO2 efficiently and can be recycled completely. They can be widely used in industrial CO2 capture process.


Songrui ZHAO