Performance simulations of MEA/NH3 based large-scale CO2 capture in packed columns under different flue gas parameters

被引:4
作者
Zhang, Minkai [1 ]
Guo, Yincheng [1 ]
机构
[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
CO2; Capture; MEA; Aqueous Ammonia; Flue Gas; Packed Column; Rate-based Simulation; CARBON-DIOXIDE; AQUEOUS AMMONIA; MASS-TRANSFER; ABSORPTION; MONOETHANOLAMINE; REGENERATION; KINETICS; COEFFICIENTS; EQUILIBRIA; AMINES;
D O I
10.1007/s11814-014-0369-8
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Based on the rate-based process simulation, performances of MEA and NH3 based large-scale CO2 capture in packed columns under different flue gas parameters were investigated. Simulation results show that the CO2 regeneration energy for the MEA based process is lower than that for the NH3 based process, which is mainly because the flow rate of the MEA solution is significantly lower than that of the aqueous ammonia. The MEA leakage concentration is far lower than the NH3 leakage concentration, and this indicates that the NH3 abatement system should be added for dealing with the NH3 slip in the NH3 based CO2 capture process. With the flow rate of the flue gas increasing, the liquid gas ratios for both processes decrease, which gives rise to the decrease of the CO2 removal efficiencies for the two processes. Since the liquid gas ratios are very high, the temperature of the flue gas has little effects on the MEA and NH3 based CO2 capture processes. The comparative studies on the effects of the flue gas parameters can provide technical guidance for the pretreatment of the flue gas before CO2 capture.
引用
收藏
页码:1477 / 1485
页数:9
相关论文
共 43 条
[1]   Characterization of ammonia-based CO2 capture process using ion speciation [J].
Ahn, Chi Kyu ;
Lee, Hae Woo ;
Chang, Yong Su ;
Han, Kunwoo ;
Kim, Je Young ;
Rhee, Chang Houn ;
Chun, Hee Dong ;
Lee, Min Woo ;
Park, Jong Moon .
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2011, 5 (06) :1606-1613
[2]  
[Anonymous], ASP PLUS DOC VERS V7
[3]  
BRAVO JL, 1985, HYDROCARB PROCESS, V64, P91
[4]  
Chen E., 2012, THESIS U TEXAS AUSTI
[5]   Mass transfer (absorption) coefficients - Prediction from data on great transfer and fluid friction [J].
Chilton, TH ;
Colburn, AP .
INDUSTRIAL AND ENGINEERING CHEMISTRY, 1934, 26 :1183-1187
[6]   Influence of operating temperature on CO2-NH3 reaction in an aqueous solution [J].
Choi, Bong Gill ;
Kim, Gyo Hee ;
Yi, Kwang Bok ;
Kim, Jong-Nam ;
Hong, Won Hi .
KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2012, 29 (04) :478-482
[7]   Experimental measurement and modeling of the rate of absorption of carbon dioxide by aqueous ammonia [J].
Darde, Victor ;
van Well, Willy J. M. ;
Fosboel, Philip L. ;
Stenby, Erling H. ;
Thomsen, Kaj .
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2011, 5 (05) :1149-1162
[8]   CO2 capture by aqueous amines and aqueous ammonia - A Comparison [J].
Dave, N. ;
Do, T. ;
Puxty, G. ;
Rowland, R. ;
Feron, P. H. M. ;
Attalla, M. I. .
GREENHOUSE GAS CONTROL TECHNOLOGIES 9, 2009, 1 (01) :949-954
[9]  
Duan L. Q., 2012, J N CHIN ELECT POWER, V39, P7
[10]   Experimental research on the performance of CO2-loaded solutions of MEA and DEA at regeneration conditions [J].
Galindo, Paula ;
Schaeffer, Anke ;
Brechtel, Kevin ;
Unterberger, Sven ;
Scheffknecht, Guenter .
FUEL, 2012, 101 :2-8