| 초록 |
CO2 capture in postcombustion is currently the most advanced technology and has been applied to existing plants. In the case of diluted and low-pressure streams, absorption process using aqueous amine-based solutions is the most attractive technology. However, one of the disadvantages of this process was corrosion problems that seemed to occur in regenerators, reboiler and rich-lean heat exchangers. This study provides the effect of process parameter on the corrosion behavior of carbon steel in CO2 absorption system using AMP solutions. Corrosion was experimentally evaluated using electrochemical techniques. The test parameters were concentration of the AMP solution, solution temperature, CO2 loading and oxygen contents. The experimental results showed that the corrosion behavior was considerably sensitive to the parameters. Increased AMP concentration, AMP solution temperature, CO2 loading and oxygen content accelerated the corrosion rate. In addition, effect of corrosion inhibitor was investigated under same conditions. |
