期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 20, 期 1, 页码 39-44出版社
SCIENCE PRESS
DOI: 10.1016/S1001-0742(08)60005-4
关键词
carbon dioxide; 2-amino-2-methyl-1-propanol; regeneration efficiency; energy consumption
To improve the efficiency of the carbon dioxide cycling process and to reduce the regeneration energy consumption, a sterically hindered amine of 2-amino-2-methyl-1-propranol (AMP) was investigated to determine its regeneration behavior as a CO2 absorbent. The CO2 absorption and amine regeneration characteristics were experimentally examined under various operating conditions. The regeneration efficiency increased from 86.2% to 98.3% during the temperature range of 358 to 403 K. The most suitable regeneration temperature for AMP was 383 K, in this experiment condition, and the regeneration efficiency of absorption/regeneration runs descended from 98.3% to 94.0%. A number of heat-stable salts (HSS) could cause a reduction in CO2 absorption capacity and regeneration efficiency. The results indicated that aqueous AMP was easier to regenerate with less loss of absorption capacity than other amines, such as, monoethanolamine (NEA), diethamolamine (DEA), diethylenetriamine (DETA), and N-methyldiethanolamine (MDEA).
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