Experimental verification of Equilibrium-Stage and Rate-Based Simulations

In this article, pilot plant data for CO2 post-combustion capture are discussed and compared with modelling results. The objectives of this paper are to evaluate the overall performance of the CO2 capture pilot plant using both experimental and simulation results. In addition, this work is aiming to assess the performance of two different modelling approaches (equilibrium-stage and rate-based) in representing the CO2 capture process performance and requirement. Furthermore, an extended parametric study was carried out to evaluate both experiments and simulation tools. This work indicated that there are no major differences between the two modelling approaches in predicting the overall capture process behaviour (macro scale) for this pilot plant case. However, the simulation of the absorber and stripper columns demonstrated that the rate-based model gives a better prediction of the columns temperature profiles and mass transfer inside the columns compared to the equilibrium-stage approach (micro scale). As a result, for a detailed process design or understanding of the mass and energy profiles in the absorber and stripper columns, the rate-based approach should be applied. It was concluded that both modelling approaches can be used for predicting the capture process overall behaviour and requirement for pilot plant scale as well as for industrial scale application.

[1]  V. Martínez,et al.  Experimental validation of a model for , 2003 .

[2]  R. Idem,et al.  Pilot Plant Studies of the CO2 Capture Performance of Aqueous MEA and Mixed MEA/MDEA Solvents at the University of Regina CO2 Capture Technology Development Plant and the Boundary Dam CO2 Capture Demonstration Plant , 2006 .

[3]  Jia Li,et al.  CO2 capture modelling for pulverised coal-fired power plants: A case study of an existing 1 GW ultra-supercritical power plant in Shandong, China , 2012 .

[4]  Eugeny Y. Kenig,et al.  Rate-based modelling and simulation of reactive separations in gas/vapour–liquid systems , 2005 .

[5]  Sanjeev Maken,et al.  A study on the carbon dioxide recovery from 2 ton-CO2/day pilot plant at LNG based power plant , 2008 .

[6]  Eugeny Y. Kenig,et al.  On the modelling and simulation of sour gas absorption by aqueous amine solutions , 2003 .

[7]  Stefano Freguia,et al.  Modeling of CO2 capture by aqueous monoethanolamine , 2003 .

[8]  Rajamani Krishna,et al.  Comparison of equilibrium stage and nonequilibrium stage models for reactive distillation , 2000 .

[9]  Gary T. Rochelle,et al.  Rate-based modeling of reactive absorption of CO2 and H2S into aqueous methyldiethanolamine , 1998 .

[10]  C. L. Maliz.  Carbon Dioxide Recovery: Large Scale Design Trends , 1995 .

[11]  Hallvard F. Svendsen,et al.  Experimental validation of a rate-based model for CO2 capture using an AMP solution , 2007 .

[12]  Mark Simmond,et al.  Post combustion technologies for CO2 capture: A technoeconomic overview of selected options , 2005 .

[13]  Gary T. Rochelle,et al.  Model of vapor-liquid equilibria for aqueous acid gas-alkanolamine systems using the electrolyte-NRTL equation , 1989 .

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

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

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

[17]  Gary T. Rochelle,et al.  A model of acid gas absorption/stripping using methyldiethanolamine with added acid , 1991 .

[18]  Alan E. Mather,et al.  Equilibrium between carbon dioxide and aqueous monoethanolamine solutions , 2007 .

[19]  Mohamed Kheireddine Aroua,et al.  Modelling of carbon dioxide absorption in aqueous solutions of AMP and MDEA and their blends using Aspenplus , 2002 .

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

[21]  Steven Pruess,et al.  A rate-based model for the design of gas absorbers for the removal of CO2 and H2S using aqueous solutions of MEA and DEA , 2001 .