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Absorption Characteristics of Aqueous Sodium Glycinate Solution with Carbon Dioxide and Its Mechanistic Analysis  

Shim, Jae-Goo (Global Environment Group, Korea Electric Power Research Institute(KEPRI))
Kim, Jun-Han (Global Environment Group, Korea Electric Power Research Institute(KEPRI))
Jang, Kyung-Ryong (Global Environment Group, Korea Electric Power Research Institute(KEPRI))
Publication Information
Journal of Korean Society of Environmental Engineers / v.30, no.4, 2008 , pp. 430-438 More about this Journal
Abstract
The experiments for separation and recovery of CO$_2$ were conducted by aqueous sodium glycinate solution, which is one of the amino acid salts, as an absorbent of CO$_2$ in this study. Absorption capacities of aqueous MEA and sodium glycinate solution according to partial pressure of CO$_2$ were evaluated by vapor-liquid equilibrium tests of 20 wt% and 30 wt% above-mentioned absorbents, respectively. In addition, the pilot scale(2 t-CO$_2$/day) experiments based on prior results were carried out. As a result, CO$_2$ removal efficiency of aqueous sodium glycinate solution was lower than that of aqueous MEA solution. This phenomenon means that CO$_2$ removal efficiency of aqueous sodium glycinate solution mainly depends on its molecular structure. Consequently, the first application of certain amino acid salt, as an absorbent of CO$_2$, to pilot plant of 2 t-CO$_2$/day scale was carried out in our country.
Keywords
Global Warming; Carbon Dioxide; Absorbent; Pilot Plant; Sodium Glycinate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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