Characteristics of absorption and regeneration of carbon dioxide in aqueous 2-amino-2-methyl-1-propanol/ammonia solutions |
| |
Authors: | Dong-Hyeon Lee Won-Joon Choi Seung-Jae Moon Soo-Ho Ha Im-Gyung Kim Kwang-Joong Oh |
| |
Affiliation: | (1) Department of Environmental Engineering, Pusan National University, Busan, 609-735, Korea;(2) Department of Reduction of Greenhouse Gas, Response to Climate Change, Pohang, 790-834, Korea;(3) Department of Natural Resources, Ministry of Environment, Gwacheon, 427-729, Korea;(4) Sefarfiltech Co., Ulsan, 680-810, Korea |
| |
Abstract: | In this study, the removal efficiency, absorption amount, and loading value of CO2 into aqueous blended 2-amino-2-methyl-1-propanol (AMP)/ammonia (NH3) solutions were measured by using the absorption and regeneration continual process. The effect of adding NH3 to enhance absorption characteristics of AMP was investigated. The performance was evaluated under various operating conditions.
As a result, the method of blending AMP and NH3 was not adequate because of a problem with scale formation. Consequently, NH3 of 1, 3, 5, and 7 wt% was added to 30 wt% AMP. Of these additions, 5 wt% NH3 was the optimum concentration because the CO2 removal efficiency and absorption amount were almost 100% and 2.17 kg CO2/kg absorbent, respectively. Also, the scale problem was almost absent. As the regenerator temperature varied from 80–110
°C, the loading of rich amine was almost constant, but the loading of lean amine was decreased as the regenerator temperature
increased. Thus, the optimum regenerator temperature was 110 °C in this experiment. |
| |
Keywords: | Carbon Dioxide 2-Amino-2-methyl-1-propanol Ammonia Absorption Regeneration |
本文献已被 SpringerLink 等数据库收录! |
|