Journal of Industrial and Engineering Chemistry, Vol.59, 304-309, March, 2018
Switchable hydrophilicity solvents for carbon dioxide chemical absorption
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The development of more efficient solvents for carbon dioxide capture is the main aim of present work by using a gas.liquid.liquid (GLL) reactor. This type of reactor is based on the use of switchable hydrophilicity solvents. This type of solvents tries to maintain a constant driving force and decreasing the amount of solvent to be regenerated. N-ethylpiperidine solvent shows an increase in absorption rate in GLL configuration and reduce the costs of regeneration in a 30%. Triethylamine solvent shows worst results in absorption tests and it suffers high degradation. The use of bicarbonate separation by precipitation for solvent regeneration contributes suitable results.
Keywords:Switchable hydrophilicity solvents;Carbon dioxide;Absorption;Regeneration;Gas.liquid.liquid
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