Effect of Alkanolamine Additives on CO2 Absorption Rate and Salt Formation of K2CO3 Aqueous Solution 


Vol. 20,  No. 2, pp. 146-153, Jun.  2014


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  Abstract

In this study, the effect of alkanolamine additives, 2-amino-2-methyl-1-propanol (AMP) and 2-amino-2-methyl-1,3-propanediol (AMPD) on CO2 absorption rate of K2CO3 solution and the formation of KHCO3 crystals was investigated. The normalized CO2 flux and the equilibrium CO2 partial pressure were measured for 5 wt% additives and 30 wt% K2CO3 mixtures using a wetted-wall column unit at 40 ℃ and 60 ℃. Both additives showed the increased CO2 absorption rate and lowered the equilibrium CO2 partial pressure acting as promoters. Besides, AMPD which has two hydroxyl groups enhanced the formation of KHCO3 solid product separated from the CO2-rich solution from the results of batch cooling crystallization experiments.

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  Cite this article

[IEEE Style]

M. CH, J. T, C. CS, K. JN, R. YW, "Effect of Alkanolamine Additives on CO2 Absorption Rate and Salt Formation of K2CO3 Aqueous Solution," Clean Technology, vol. 20, no. 2, pp. 146-153, 2014. DOI: .

[ACM Style]

Moon CH, Jung T, Cho CS, Kim JN, and Rhee YW. 2014. Effect of Alkanolamine Additives on CO2 Absorption Rate and Salt Formation of K2CO3 Aqueous Solution. Clean Technology, 20, 2, (2014), 146-153. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지