CO2 Capture by Liquid Solvents and their Regeneration by Thermal Decomposition of the Solid Carbonated Derivatives

被引:30
作者
Barzagli, Francesco [1 ]
Lai, Sarah [2 ]
Mani, Fabrizio [2 ]
机构
[1] ICCOM CNR, Sesto Fiorentino, Italy
[2] Univ Florence, Dept Chem, I-50019 Sesto Fiorentino, FI, Italy
关键词
C-13 NMR speciation; 2-Amino-2-methyl-1-propanol; Alkali carbonates; Amine carbamates; CO2; capture; Piperazine; CHEMICAL ABSORPTION; DIOXIDE ABSORPTION; PILOT-PLANT; PERFORMANCE; MONOETHANOLAMINE; CONFIGURATIONS; DESORPTION; STEAM;
D O I
10.1002/ceat.201300225
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The chemical capture of CO2 by either aqueous Na2CO3 and K2CO3 or nonaqueous solutions of the amines 2-amino-2-methyl-1-propanol (AMP) or piperazine (PZ) is described. The captured CO2 is stored as solid NaHCO3, KHCO3, and AMP or PZ carbamates. Solid NaHCO3 and KHCO3 are decomposed at 200 degrees C and 250 degrees C, respectively, to regenerate the carbonates for their reuse. In the experiments with AMP or PZ, the solid carbamates are decomposed at 80 degrees C-110 degrees C to regenerate the free amines. The absence of water in the desorption-regeneration step is intriguing and could have the potential of reducing one of the major disadvantages of aqueous absorbents, namely the energy cost of the regeneration step and amine degradation, yet preserving the efficiency of the absorption in the liquid phase.
引用
收藏
页码:1847 / 1852
页数:6
相关论文
共 31 条
[1]  
[Anonymous], 2010, CARB DIOX CAPT ABS P
[2]  
Astarita G, 1984, GAS TREATING CHEM SO
[3]  
Austin W. H., 1977, NBS SPEC PUBL, V450, P143
[4]   Efficient CO2 capture by non-aqueous 2-amino-2-methyl-1-propanol (AMP) and low temperature solvent regeneration [J].
Barbarossa, Vincenzo ;
Barzagli, Francesco ;
Mani, Fabrizio ;
Lai, Sarah ;
Stoppioni, Piero ;
Vanga, Giuseppina .
RSC ADVANCES, 2013, 3 (30) :12349-12355
[5]   Efficient CO2 absorption and low temperature desorption with non-aqueous solvents based on 2-amino-2-methyl-1-propanol (AMP) [J].
Barzagli, Francesco ;
Mani, Fabrizio ;
Peruzzini, Maurizio .
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2013, 16 :217-223
[6]   Improved Solvent Formulations for Efficient CO2 Absorption and Low-Temperature Desorption [J].
Barzagli, Francesco ;
Di Vaira, Massimo ;
Mani, Fabrizio ;
Peruzzini, Maurizio .
CHEMSUSCHEM, 2012, 5 (09) :1724-1731
[7]  
BENSON HE, 1954, CHEM ENG PROG, V50, P356
[8]   Comparative analysis of the carbon dioxide absorption and recuperation capacities in aqueous 2-(2-aminoethylamino)ethanol (AEE) and blends of aqueous AEE and N-methyldiethanolamine solutions [J].
Bonenfant, D ;
Mimeault, M ;
Hausler, R .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (10) :3720-3725
[9]  
Breitmaier E., 1990, CARBON 13 NMR SPECTR
[10]   Kinetics of carbon dioxide absorption into aqueous potassium carbonate and piperazine [J].
Cullinane, JT ;
Rochelle, GT .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (08) :2531-2545