Regeneration of 2-amino-2-methyl-1-propanol used for carbon dioxide absorption.
Regeneration of 2-amino-2-methyl-1-propanol used for carbon dioxide absorption.
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DOI：
10.1016/s1001-0742(08)60005-4
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发表时间：
2008
影响因子：
6.9
通讯作者：
Pei Zhang;Yao Shi;Jianwen Wei;Wei Zhao;Qing Ye
中科院分区：
文献类型：
--
作者：
Pei Zhang;Yao Shi;Jianwen Wei;Wei Zhao;Qing Ye
为了提高二氧化碳循环过程的效率，降低再生能耗，研究了空间位阻的2-氨基-2-甲基-1-丙醇胺(AMP)作为二氧化碳吸收剂的再生行为。实验考察了不同操作条件下的CO2吸收和胺再生特性。在358~403K温度范围内，AMP的再生效率从86.2%提高到98.3%，最适再生温度为383K，吸附/再生循环的再生效率从98.3%下降到94.0%。大量的热稳定盐(HSS)会导致CO2吸收能力和再生效率的降低。结果表明，与一乙醇胺(MEA)、二乙醇胺(DEA)、二乙烯三胺(DETA)和N-甲基二乙醇胺(MDEA)相比，AMP水溶液更容易再生，吸收容量损失也更小。
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 CO2absorbent. The CO2absorption 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 CO2absorption 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 (MEA), diethanolamine (DEA), diethylenetriamine (DETA), and N-methyldiethanolamine (MDEA).