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The absorption capacity and initial absorption rate of CO 2 into aqueous K 2 CO 3 solutions were measured by using VLE(Vapor-Liquid-Equilibrium) equipment in the pre-combustion condition. Absorption experiments were conducted within the temperature range of 40~80℃ while increasing the CO 2 pressure from 0 to 50bar. The effect of K 2 CO 3 concentration was investigated by varying in the range of 5~20%. As a results, the absorption capacity and initial absorption rate were increased with increasing K 2 CO 3 concentration in the absorbents. Also, the initial absorption rate was highest at 40℃. Further more, we have studied the effect of adding piperazine and homopiperazine to K 2 CO 3 solutions. The results showed that absorption capacity of CO 2 was somewhat increased by adding piperazine. Key Words : Carbon dioxide, Potassium-Carbonate, Pre-Combustion, Absorption    21          (CE3-101-1-0-1)  *  : (wscha@kunsan.ac.kr) 10 12 22  11 01 28  11 02 10

Absorption of CO2in Aqueous K2CO3Absorbents at Pre-Combustion Condition

Absorption of CO₂in Aqueous K₂CO₃Absorbents at Pre-Combustion Condition