Journal
FUEL
Volume 136, Issue -, Pages 261-267Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2014.07.057
Keywords
Desorption; Carbon dioxide; Energy consumption; Diethylenetriamine; Packed column
Categories
Funding
- National Natural Science Foundation of China [21276068, U1362112, 21376067]
- National Key Technology RD Program [2012BAC26B01, 2014BAC18B04]
- Innovative Research Team Development PlanMinistry of Education of China [IRT1238]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130161110025]
- Technology Development contract [12-34]
- Innovative Research Program for Graduate Student of Hunan Province, China [CX2013B158]
- China's State Project 985'' in Hunan University-Novel Technology Research Development
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The regeneration heat duty (Q(reg), kJ/kg CO2) is a critical parameter in the post-combustion CO2 capture process using a chemical solvent. In this study, the Q(reg) of CO2 desorption from CO2 rich diethylenetriamine (DETA) solutions was experimentally evaluated in a bench-scale stripper column packed with Dixon ring random packing. The experiments were conducted to evaluate Q(reg) over a solvent flow rate (L) range of 2.92-11.69 m(3)/m(2) h, amine concentration (C) range of 1.0-4.0 kmol/m(3) and CO2 cyclic capacity (Delta a) range of 0.21-0.79 mol/mol. It was found that Q(reg) was greatly influenced by all the three factors. In addition, a comparison of the regeneration performances between DETA and monoethanolamine (MEA) was performed to evaluate the potential for DETA's application in the CO2 capture process. The results obtained in this work showed that for regeneration at the same absorption capacity, the heat duty of DETA was lower than that of MEA. (C) 2014 Elsevier Ltd. All rights reserved.
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