STUDY ON THE CORRELATION BETWEEN CO2ABSORPTION MECHANISMS AND CORROSIONBEHAVIOR OF ALKANOLAMINE SOLUTIONS

J Chin Soc Corr Pro

2003, Vol. 23

Issue (2): 79-83 DOI:

Research Report

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STUDY ON THE CORRELATION BETWEEN CO2ABSORPTION MECHANISMS AND CORROSIONBEHAVIOR OF ALKANOLAMINE SOLUTIONS

XVwen Feng;Xingpeng Guo

武汉华中科技大学化学系

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XVwen Feng; Xingpeng Guo. STUDY ON THE CORRELATION BETWEEN CO2ABSORPTION MECHANISMS AND CORROSIONBEHAVIOR OF ALKANOLAMINE SOLUTIONS. J Chin Soc Corr Pro, 2003, 23(2): 79-83 .

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Abstract The corrosion behavior of carbon steel in CO2-abs orbed 3.0 mol/L MEA、DEA、AMP and MDEA solutions under 1.013×105Pa CO2 at 8 0℃ was investigated by static weight loss test,electrochemical method and surfa ce analytical technology.Their CO2 absorption mechanisms and corrosive charact eristic were discussed from several points of view.Different structure alkanolam ines have different CO2 absorption mechanisms,their corrosion product film and solution constituents were different,so their corrosivity was different.The cor rosivity of CO2 saturated amines tested in this work decreased in the order: M EA>AMP>DEA>MDEA.

Key words: alkanolamine carbon dioxide absorption mechanism corro sivity

Received: 18 October 2001

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