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http://dx.doi.org/10.1007/s11814-010-0246-z

Characterization of metal corrosion by aqueous amino acid salts for the capture of $CO_2$  

Ahn, Seong-Yeon (Department of Chemical and Biomolecular Engineering, Yonsei University)
Song, Ho-Jun (Department of Chemical and Biomolecular Engineering, Yonsei University)
Park, Jin-Won (Department of Chemical and Biomolecular Engineering, Yonsei University)
Lee, Ji-Hyun (Green Growth Laboratory, Korea Electric Power Research Institute)
Lee, In-Young (Green Growth Laboratory, Korea Electric Power Research Institute)
Jang, Kyung-Ryong (Green Growth Laboratory, Korea Electric Power Research Institute)
Publication Information
Korean Journal of Chemical Engineering / v.27, no.5, 2010 , pp. 1576-1580 More about this Journal
Abstract
We investigated the absorption ability of potassium salts of amino acid solutions for carbon dioxide and compared the results with MEA. The corrosion and degradation behavior were investigated in a $CO_2$ absorption process using aqueous potassium salts of glycine and taurine. The experimental parameters varied were the concentration, amino acid type, temperature, $CO_2$ loading, piperazine, and the presence of corrosion inhibitors. The corrosion characteristics of carbon steel were measured with potassium glycinate and potassium taurate solutions over a wide range of concentrations (1.5 to 5.0M) and temperatures (313.15 to 353.15 K). The corrosion rate was calculated using a weight loss method averaging the results of four specimens. The experimental results indicate that increases in the concentration of the aqueous amino acid salts, solution temperature, $CO_2$ loading, and piperazine concentration accelerate the corrosion rate. In addition, corrosion inhibitors were proven to be effective in controlling corrosion.
Keywords
Cabon Dioxide; Amino Acid Salts; Corrosion; Rate Promoter; Corrosion Inhibitor;
Citations & Related Records
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Times Cited By Web Of Science : 8  (Related Records In Web of Science)
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