New Configuration of the CO2 Capture Process Using Aqueous Monoethanolamine for Coal-Fired Power Plants

Postcombustion CO2 capture with aqueous monoethanolamine (MEA) scrubbing is one of the most promising and well-proven techniques for reducing CO2 emissions into the atmosphere. However, this process has a critical problem: the high reboiler heat energy requirement for solvent regeneration at the stripper reboiler. To reduce the reboiler heat requirement, this paper suggests a new stripper configuration for CO2 capture with MEA, namely a combined rich vapor recompression (RVR) and cold solvent split (CSS). The RVR is a newly developed configuration, involving vaporizing a cold solvent in the heat exchanger, thereby maximizing the heat exchanger preheating duty under low pressure. The CSS is a well-known configuration, feeding the split cold solvent to the stripper top and eliminating the reflux rate in the stripper by cooling the stripper top. The RVR process is dramatically improved when it is combined with the CSS configuration. To show the effect of this combined process, this study includes simulation ...

[1]  Magne Hillestad,et al.  Investigation of the dynamic behavior of different stripper configurations for post-combustion CO2 capture , 2012 .

[2]  Luis M. Romeo,et al.  Integration of power plant and amine scrubbing to reduce CO2 capture costs , 2008 .

[3]  Haiwen Liang,et al.  Economic analysis of amine based carbon dioxide capture system with bi-pressure stripper in supercritical coal-fired power plant , 2011 .

[4]  Chechet Biliyok,et al.  Dynamic modelling, validation and analysis of post-combustion chemical absorption CO2 capture plant , 2012 .

[5]  Jae-Goo Shim,et al.  A study of the CO2 capture pilot plant by amine absorption , 2011 .

[6]  Paitoon Tontiwachwuthikul,et al.  Comparative studies of heat duty and total equivalent work of a new heat pump distillation with split flow process, conventional split flow process, and conventional baseline process for CO2 capture using monoethanolamine , 2014 .

[7]  Chonghun Han,et al.  Advanced CO2 Capture Process Using MEA Scrubbing: Configuration of a Split Flow and Phase Separation Heat Exchanger , 2013 .

[8]  Chonghun Han,et al.  Modeling and Simulation of CO2 Capture Process for Coal- based Power Plant Using Amine Solvent in South Korea , 2013 .

[9]  P. Feron,et al.  A survey of process flow sheet modifications for energy efficient CO2 capture from flue gases using chemical absorption , 2011 .

[10]  Jacob Nygaard Knudsen,et al.  Experience with CO2 capture from coal flue gas in pilot-scale: Testing of different amine solvents , 2009 .

[11]  Amornvadee Veawab,et al.  Integration of CO2 capture unit using single- and blended-amines into supercritical coal-fired power plants: Implications for emission and energy management , 2007 .

[12]  Hsuan Chang,et al.  Simulation and Optimization for Power Plant Flue Gas CO2 Absorption‐Stripping Systems , 2005 .

[13]  G. Rochelle,et al.  CO2 Absorption Rate and Solubility in Monoethanolamine/Piperazine/Water , 2003 .

[14]  Gary T. Rochelle,et al.  Stripper configurations for CO2 capture by aqueous monoethanolamine , 2011 .

[15]  Peter Moser,et al.  Performance of MEA in a long-term test at the post-combustion capture pilot plant in Niederaussem , 2011 .

[16]  Eva Sanchez Fernandez,et al.  Optimisation of lean vapour compression (LVC) as an option for post-combustion CO2 capture: net present value maximisation , 2012 .

[17]  J. Plaza,et al.  Modeling CO2 capture with aqueous monoethanolamine , 2003 .

[18]  Giampaolo Manfrida,et al.  CO2 capture in coal-fired power plants—Impact on plant performance , 2011 .

[19]  Reinhard Radermacher,et al.  Energy consumption reduction in CO2 capturing and sequestration of an LNG plant through process integration and waste heat utilization , 2012 .

[20]  S. Brandani,et al.  Process Configuration Studies of the Amine Capture Process for Coal-fired Power Plants , 2013 .

[21]  Thore Berntsson,et al.  Heat supply alternatives for CO2 capture in the process industry , 2012 .

[22]  Mohamed Kanniche,et al.  Screening of flowsheet modifications for an efficient monoethanolamine (MEA) based post-combustion CO2 capture , 2011 .

[23]  Norbert Asprion,et al.  Nonequilibrium rate-based simulation of reactive systems : Simulation model, heat transfer, and influence of film discretization , 2006 .

[24]  Gary T. Rochelle,et al.  Alternative stripper configurations for CO2 capture by aqueous amines , 2007 .

[25]  Magne Hillestad,et al.  Positive and Negative Effects on Energy Consumption by Inter–heating of Stripper in Co2 Capture Plant , 2012 .

[26]  Gary T. Rochelle,et al.  Rate-Based Process Modeling Study of CO2 Capture with Aqueous Monoethanolamine Solution , 2009 .

[27]  Sergio Mussati,et al.  A rate based model of a packed column for CO2 absorption using aqueous monoethanolamine solution , 2012 .

[28]  J. A. Feliu,et al.  Saving energy in distillation towers by feed splitting , 2002 .

[29]  Hans Hasse,et al.  Post combustion CO2 capture by reactive absorption: Pilot plant description and results of systematic studies with MEA , 2012 .

[30]  Ali Abbas,et al.  HEN optimization for efficient retrofitting of coal-fired power plants with post-combustion carbon capture , 2011 .

[31]  Hiroshi Tanaka,et al.  Current Status of MHI CO2 Capture Plant technology, Large Scale Demonstration project and Road Map to Commercialization for Coal Fired Flue Gas Application , 2011 .

[32]  Magne Hillestad,et al.  Capital costs and energy considerations of different alternative stripper configurations for post combustion CO2 capture , 2011 .

[33]  G. Versteeg,et al.  CO2 capture from power plants. Part I: A parametric study of the technical performance based on monoethanolamine , 2007 .

[34]  Gary T. Rochelle,et al.  Innovative Absorber/Stripper Configurations for CO2 Capture by Aqueous Monoethanolamine , 2006 .