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.com
Volume 5, Issue 3 (Suppl)
Mod Chem Appl, an open access journal
ISSN: 2329-6798
Global Chemistry 2017
September 04-06, 2017
September 04-06, 2017 | London, UK
5
th
Global Chemistry Congress
Amino-acids salt solutions for CO
2
capture from flue gases
Soon Kwan Jeong
and
K T Park
Korea Institute of Energy Research, South Korea
A
nthropogenic carbon dioxide (CO
2
) is a major greenhouse gas that acts as a blanket to absorb thermal radiation emitted by
the earth’s surface. Many studies have introduced new technologies for CO
2
capture; however, the quest for feasible capture
technologies continues. Amino acid salt solutions have distinguished features such as fast reaction kinetics, high cyclic loading
capacity, and good stability towards oxygen, low vapor pressure and biodegradable property. In this study, the CO
2
absorption
capacity, absorption rate and heat of absorption of the aqueous potassium salts of amino acids were investigated using semi-
batch absorption system, wetted wall column and a differential reaction calorimeter (DRC). The results were compared to
amine solvents. The CO
2
loading capacity of amino-acids salts solutions showed higher than that of amine solutions. The CO
2
loading capacities were found to be 0.50 and 0.68 mol of CO
2
/mol of solvent for aqueous MEA and potassium salt of L-alanine
at 298 K, respectively. The heat of regeneration depends on the heat of absorption as well as sensible heat and latent heat.
Therefore, the heat of absorption can be used as useful data for the continuous process. MEA and DEA showed 81.77 kJ/mol
of CO
2
and 67.06 kJ/mol of CO
2
, respectively. Among the amino-acids slats solutions, potassium salt of L-alanine showed the
lowest heat of absorption of 53.26 kJ/mol CO
2
. Amino-acids salts solutions had the higher CO
2
loading capacity and lower
heat of absorption than those of MEA. Therefore, amino-acids salts solutions are deemed to be the potential CO
2
absorbent to
replace the existing system.
Biography
Soon Kwan Jeong received BS degree in Chemical Engineering and PhD degree in Chemical Engineering both from Korea University, South Korea, in 1993 and
2000, respectively. From 1992 to 1994, he was a Researcher at Honkook Tire Co., Seoul. From 2005 to 2006, he was a Postdoctoral Fellow with Pratim Biswas
at Washington University. He is currently a Principal Researcher at Korea Institute of Energy Research, South Korea. His research interests include “Biomimetics,
material science and engineering for CO2 capture and conversion”.
jeongsk@kier.re.krSoon Kwan Jeong et al., Mod Chem Appl 2017, 5:3(Suppl)
DOI: 10.4172/2329-6798-C1-006