期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 10, 期 -, 页码 443-455出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2012.07.005
关键词
Carbon capture; Ethanolamine; Heat stable amine salt; Membrane separation; Degradation; Amine reclamation
类别
资金
- Australian Government through its CRC program
- Australian Government through Australian National Low Emissions Coal Research and Development (ANLEC RD)
- Australian Coal Association Low Emissions Technology Limited
- Australian Government through the Clean Energy Initiative
The degradation of aqueous amine solvents used in CO2 capture causes increasing costs and deterioration in long term performance. A very broad range of degradation products, formed by exposure of the amine solution to heat, oxygen and strong acids, have been reported over the past 50 years. To date, industry has generally relied upon purging, filtration, neutralization and thermal reclaiming to reduce the impact of these impurities. However, the high levels of oxygen, SOx and NOx in post combustion acid gas capture will mean that other technologies are likely to be more successful. These methods include ion exchange and electrodialysis. This paper will review the major degradation routes leading to corrosive and undesirable by-products as well as the main techniques reported in the literature to reduce the impact of the degradation products on the amine strength. (c) 2012 Elsevier Ltd. All rights reserved.
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