Process Characteristics of CO2 Absorption by Aqueous Monoethanolamine in a Microchannel Reactor

Abstract

Abstract: Process characteristics of CO₂ absorption using aqueous monoethanolamine(MEA) in a microchannel reactor were investigated experimentally in this work.A T-type rectangular microchannel with a hydraulic diameter of 408 μm was used.Operating parameters,i.e.temperature,pressure and molar ratio of MEA to CO₂ were studied.Under 3 MPa pressure,the mole fraction of CO₂ in gas phase could decrease from 32.3% to 300×10^-6 at least when gas hourly space velocity ranged from 14400 to 68600 h^-1 and molar ratio of MEA to CO₂ was kept at 2.2.In particular,the effects of temperature on CO₂ absorption flux,mass transfer driving force,gas-liquid contact time and enhancement factor were analyzed in detail and found that mass transfer enhancement by chemical reaction was a crucial factor for the process of CO₂ absorption.

Key words: miniaturization, microchannel, microfluidic, carbon dioxide, absorption, monoethanolamine

摘要： Process characteristics of CO₂ absorption using aqueous monoethanolamine(MEA) in a microchannel reactor were investigated experimentally in this work.A T-type rectangular microchannel with a hydraulic diameter of 408 μm was used.Operating parameters,i.e.temperature,pressure and molar ratio of MEA to CO₂ were studied.Under 3 MPa pressure,the mole fraction of CO₂ in gas phase could decrease from 32.3% to 300×10^-6 at least when gas hourly space velocity ranged from 14400 to 68600 h^-1 and molar ratio of MEA to CO₂ was kept at 2.2.In particular,the effects of temperature on CO₂ absorption flux,mass transfer driving force,gas-liquid contact time and enhancement factor were analyzed in detail and found that mass transfer enhancement by chemical reaction was a crucial factor for the process of CO₂ absorption.

关键词: miniaturization, microchannel, microfluidic, carbon dioxide, absorption, monoethanolamine

CLC Number:

X701

YE Chunbo, CHEN Guangwen, YUAN Quan. Process Characteristics of CO₂ Absorption by Aqueous Monoethanolamine in a Microchannel Reactor[J]. , 2012, 20(1): 111-119.

叶春波, 陈光文, 袁权. Process Characteristics of CO₂ Absorption by Aqueous Monoethanolamine in a Microchannel Reactor[J]. , 2012, 20(1): 111-119.

References

1 Bernard,T.,"Primary energy sources and greenhouse effect",C.R. Geosci.,335(6-7),597-601(2003).
2 Akanksha,K.P.,Srivastava,V.,"Mass transport correlation for CO₂ absorption in aqueous monoethanolamine in a continuous film contactor",Chem.Eng.Process.,47(5),920-928(2008).
3 Akanksha,K.P.,Srivastava,V.,"Carbon dioxide absorption into monoethanolamine in a continuous film contactor",Chem.Eng.J.,133(1-3),229-237(2007).
4 Freguia,S.,Rochelle,T.G.,"Modeling of CO₂ capture by aqueous monoethanolamine",AIChE.J.,49(7),1676-1686(2003).
5 Hikita,H.,Asai,S.,Ishikawa,H.,Uku,K.,"Absorption of carbon-dioxide into aqueous diethanolamine solutions",Chem.Eng. Commun.,5(5-6),315-322(1980).
6 Xu,G.W.,Zhang,C.F.,Qin,S.J.,Zheng,Z.S.,"A kinetics study on the absorption of carbon dioxide into a mixed aqueous solution of methyldiethanolamine and piperazine",Ind.Eng.Chem.Res.,40,3785-3791(2001).
7 Bishnoi,S.,Rochelle,G.T.,"Absorption of carbon dioxide in aqueous piperazine/methyldiethanolamine",AIChE.J.,48(12),2788-2799(2002).
8 McCann,N.,Maeder,M.,Attalla,M.,"Simulation of enthalpy and capacity of CO₂ absorption by aqueous amine systems",Ind.Eng. Chem.Res.,47(6),2002-2009(2008).
9 Xiao,J.,Li,C.W.,Li,M.H.,"Kinetics of absorption of carbon dioxide into aqueous solutions of 2-amino-2-methyl-1-propanol plus monoethanolamine",Chem.Eng.Sci.,55(1),161-175(2000).
10 Mandal,B.P.,Bandyopadhyay,S.S.,"Absorption of carbon dioxide into aqueous blends of 2-amino-2-methyl-1-propanol and monoethanolamine",Chem.Eng.Sci.,61(16),5440-5447(2006).
11 Jou,F.Y.,Mather,A.E.,Otto,F.D.,"The solubility of CO₂ in a 30-mass-percent monoethanolamine solution",Can.J.Chem.Eng.,73(1),140-147(1995).
12 Ma'mun,S.,Nilsen,R.,Svendsen,H.F.,"Solubility of carbon dioxide in 30 mass% monoethanolamine and 50 mass% methyldiethanolamine",J.Chem.Eng.Data.50(2),630-634(2005).
13 Shen,K.P.,Li,M.H.,"Solubility of carbon dioxide in aqueous mixtures of monoethanolamine with methyldiethanol-amine",J.Chem. Eng.Data,37(1),96-100(1992).
14 Deshmukh,R.D.,Mather,A.E.,"A mathematical model for equilibrium solubility of hydrogen sulfide and carbon dioxide in aqueous alkanolamine solutions",Chem.Eng.Sci.,36,355-362(1981).
15 Kent,R.L.,Elsenberg,B.,"Better data for amine treating",Hydrocarbon.Process.,55,87-90(1976).
16 Aboudheir,A.,"Kinetics of the reactive absorption of carbon dioxide in high CO₂-loaded,concentrated aqueous monoeth-anolamine solutions",Chem.Eng.Sci.,58(23-24),5195-5210(2003).
17 Sada,E.,Kumazawa,H.,Butt,M.A.,Hayashi,D.,"Simultaneous absorption of carbon dioxide and hydrogen sulfide into aqueous monoethanolamine solutions",Chem.Eng.Sci.,31(9),839-841 (1976).
18 Sada,E.,Kumazawa,H.,Han,Z.Q.,"Chemical absorption of carbon dioxide into ethanolamine solutions of polar solvent",AIChE.J.,32 (2),347-349(1986).
19 Clarke,J.K.A.,"Kinetics of absorption of carbon dioxide in monoethanolamine solutions at short contact times",Ind.Eng.Chem.Res.,3(3),239-245(1964).
20 Kim,I.,Karl,A.H.,Erik,T.H.,Warberg,T.H.,Svendsen,H.F.,"Enthalpy of absorption of CO₂ with alkanolamine solutions predicted from reaction equilibrium constants",Chem.Eng.Sci.,64(9),2027-2038(2009).
21 Maceiras,R.E.,álvarez,M.á.C.,"Effect of temperature on carbon dioxide absorption in monoethanolamine solutions",Chem.Eng.J.,138(1-3),295-300(2008).
22 Fair,J.R.,Seibert,A.F.,Behrens,M.,Saraber,P.P.,Olujic,Z.,"Structured packing performance-experimental evaluation of two predictive models",Ind.Eng.Chem.Res.,39(6),1788-1796(2000).
23 Krumdieck,S.,Wallace,J.,Curnow,O.,"Compact,low energy CO₂ management using amine solution in a packed bubble column",Chem.Eng.J.,135(1-2),3-9(2008).
24 Sundaresan,A.,Varma,Y.B.G.,"Interfacial area and mass transfer in gas-liquid cocurrent upflow and countercurrent flow in reciprocating plate column",Can.J.Chem.Eng.,68(6),952-958(1990).
25 Faramarzi,L.,Kontogeorgis,G.M.,Michelsen,M.L.,Thomsen,K.,Stenby,E.H.,"Absorber model for CO₂ capture by monoethanolamine",Ind.Eng.Chem.Res.,49(8),3751-3759(2010).
26 Chen,G.W.,Yue,J.,Quan,Q.,"Gas-liquid microreaction technology: recent developments and future challenges",Chin.J.Chem.Eng.,16 (5),663-669(2008).
27 Kobayashi,J.,Mori,Y.,Kobayashi,S.,"Hydrogenation reactions using scCO₂as a solvent in microchannel reactors",Chem.Commun.,(20),2567-2568(2005).
28 Shen,J.N.,Zhao,Y.C.,Chen,G.W.,Yuan,Q.,"Investigation of nitration processes of iso-octanol with mixed acid in a microreactor",Chin.J.Chem.Eng.,17(3),412-418(2009).
29 Su,Y.H.,Chen,G.W.,Zhao,Y.C.,Yuan,Q.,"Intensification of liquidliquid two-phase mass transfer by gas agitation in a microchannel",AIChE.J.,55(8),1948-1958(2009).
30 Jamal,A.,Meisen,A.,Lim,C.J.,"Kinetics of carbon dioxide absorption and desorption in aqueous alkanolamine solutions using a novel hemispherical contactor(Ⅰ)Experimental apparatus and mathematical modeling",Chem.Eng.Sci.,61(19),6571-6589 (2006).
31 Jamal,A.,Meisen,A.,Lim,C.J.,"Kinetics of carbon dioxide absorption and desorption in aqueous alkanolamine solutions using a novel hemispherical contactor(Ⅰ)Experimental results and parameter estimation",Chem.Eng.Sci.,61(19),6590-6603(2006)
32 Versteeg,G.F.,Laj,V.D.,van Swaaij,W.P.M.,"On the kinetics between CO₂ and alkanolamines both in aqueous and non-aqueous solutions.An overview",Chem.Eng.Commun.,144,113-158(1996).
33 Mandal,B.P.,Biswas,A.K.,Bandyopadhyay,S.S.,"Absorption of carbon dioxide into aqueous blends of 2-amino-2-methyl-1-propanol and diethanolamine",Chem.Eng.Sci.,58(18),4137-4144(2003).
34 Amundsen,T.G.,Oi,L.E.,Eimer,D.A.,"Density and viscosity of monoethanolamine plus water plus carbon dioxide from(25 to 80)℃",J.Chem.Eng.Data,54,3096-3100(2009).
35 Weiland,R.H.,Dingman,J.C.,Cronin,D.B.,Browning,G.J.,"Density and viscosity of some partially carbonated aqueous alkanolamine solutions and their blends",J.Chem.Eng.Data,43,378-382 (1998).
36 Versteeg,G.F.,van Swaaij,W.P.M.,"Solubility and diffusivity of acid gases(CO₂,N₂O)in aqueous alkanolamine solutions",J.Chem. Eng.Data,33,29-34(1988).
37 Versteeg,G.F.,Blauwhoff,P.,van Swaaij,W.P.M.,"The effect of diffusivity on gas-liquid mass transfer in stirred vessels.Experiments at atmospheric and elevated pressures",Chem.Eng.Sci.,42,1103-1109(1987).
38 Sada,E.,Kumazawa,H.,Butt,M.A.,"Solubility and diffusivity of gases in aqueous solutions of amines",J.Chem.Eng.Data,23,161-163(1978).
39 Korson,L.,Drosthan,W.,Millero,F.J.,"Viscosity of water at various temperatures",J.Phys.Chem.,73(1),34-39(1969).
40 Yue,J.,Chen,G.W.,Yuan,Q.,Luo,L.,Gonthier,Y.,"Hydrodynamics and mass transfer characteristics in gas-liquid flow through a rectangular microchannel",Chem.Eng.Sci.,62(7),2096-2108 (2007).
41 Danckwerts,P.V.,Gas Liquid Reactions,McGraw-Hill,New York (1970).
42 Span,R.,Lemmon,E.W.,Jacobsen,R.T.,Wagner,W.,Yokozeki,A.,"A reference equation of state for the thermodynamic properties of nitrogen for temperatures from 63.151 to 1000 K and pressures to 2200 MPa",J.Phys.Chem.Ref.Data,29(6),1361-1433(2000).
43 Mathonat,C.,Majer,V.,Mather,A.E.,Grolier,J.P.E.,"Use of flow calorimetry for determining enthalpies of absorption and the solubility of CO₂ in aqueous monoethanolamine solutions",Ind.Eng.Chem. Res.,37(10),4136-4141(1998).
44 Kawahara,A.,Chung,P.M.Y.,Kawaji,M.,"Investigation of two-phase flow pattern,void fraction and pressure drop in a microchannel",Int.J.Multiphase.Flow,28,1411-1435(2002).
45 Triplett,K.A.,Ghiaasiaan,S.M.,Abdel-Khalik,S.I.,Sadowski,D.L.,"Gas-liquid two-phase flow in microchannels-Part Ⅰ:two-phase flow patterns",Int.J.Multiphase.Flow,25(3),377-394(1999).
46 Zhao,T.S.,Bi,Q.C.,"Co-current air-water two-phase flow patterns in vertical triangular microchannels",Int.J.Multiphase.Flow.,27 (5),765-782(2001).
47 Sobieszuk,P.,Pohorecki,R.,"Gas-side mass transfer coefficients in a falling film microreactor",Chem.Eng.Process.,49(8),820-824 (2010).

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Process Characteristics of CO₂ Absorption by Aqueous Monoethanolamine in a Microchannel Reactor

Process Characteristics of CO₂ Absorption by Aqueous Monoethanolamine in a Microchannel Reactor

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