Reducing the energy penalty of CO2 capture and compression using pinch analysis

Abstract Integration of CO2 capture and storage (CCS) into coal-fired power stations is seen as a way of significantly reducing the carbon emissions from stationary sources. A large proportion of the estimated cost of CCS is because of the additional energy expended to capture the CO2 and compress it for transport and storage, reducing the energy efficiency of the power plant. This study uses pinch analysis and heat integration to reduce the overall energy penalty and, therefore, the cost of implementing CCS for power plants where the additional heat and power for the CCS plant will be provided by the existing power plant. A combined pinch analysis and linear programming optimisation are applied to determine targets for the energy penalty of existing power plants. Two existing pulverised brown coal power plants with new CCS plants using solvent absorption are used as the basis for the study that show the energy penalty can be reduced by up to 50% by including effective heat integration. The energy penalty can be further reduced by pre-drying the coal.

[1]  Robin Smith,et al.  Top-level analysis of site utility systems , 2004 .

[2]  François Maréchal,et al.  Targeting the optimal integration of steam networks: Mathematical tools and methodology , 1999 .

[3]  Marc Marshall,et al.  Water in Brown Coal and Its Removal , 2004 .

[4]  John R. Flower,et al.  Synthesis of heat exchanger networks: I. Systematic generation of energy optimal networks , 1978 .

[5]  Umberto Desideri,et al.  Performance modelling of a carbon dioxide removal system for power plants , 1999 .

[6]  Edward S Rubin,et al.  A technical, economic, and environmental assessment of amine-based CO2 capture technology for power plant greenhouse gas control. , 2002, Environmental science & technology.

[7]  Henry W. Pennline,et al.  Study of CO2 Absorption and Desorption in a Packed Column , 2001 .

[8]  Robin Smith,et al.  Chemical Process: Design and Integration , 2005 .

[9]  Erik Hektor,et al.  Future CO2 removal from pulp mills - process integration consequences. , 2007 .

[10]  Chakib Bouallou,et al.  Study of an innovative gas-liquid contactor for CO2 absorption , 2011 .

[11]  Antonis C. Kokossis,et al.  Conceptual optimisation of utility networks for operational variations—I. targets and level optimisation , 1998 .

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

[13]  Antonis C. Kokossis,et al.  Conceptual optimisation of utility networks for operational variations—II. Network development and optimisation , 1998 .

[14]  A.I.A. Salama.  Optimal assignment of multiple utilities in heat exchange networks , 2009 .

[15]  Chun-Zhu Li,et al.  Advances in the Science of Victorian Brown Coal , 2004 .

[16]  Lin Gao,et al.  Efficient energy systems with CO2 capture and storage from renewable biomass in pulp and paper mills , 2004 .

[17]  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 .

[18]  Zhigang Shang,et al.  A systematic approach to the synthesis and design of flexible site utility systems , 2005 .

[19]  Ignacio E. Grossmann,et al.  A structural optimization approach in process synthesis—I: Utility systems , 1983 .

[20]  Gary T. Rochelle,et al.  Carbon dioxide absorption with aqueous potassium carbonate promoted by piperazine , 2004 .

[21]  M. V. Bapat,et al.  Effect of various sources of P2O5 on yield and uptake of nutrients in wheat. , 1970 .

[22]  Jon Gibbins,et al.  Scope for reductions in the cost of CO2 capture using flue gas scrubbing with amine solvents , 2004 .

[23]  Bodo Linnhoff,et al.  A User guide on process integration for the efficient use of energy , 1994 .

[24]  Masaki Iijima,et al.  Development of energy saving technology for flue gas carbon dioxide recovery in power plant by chemical absorption method and steam system , 1997 .

[25]  Luis Puigjaner,et al.  Targeting and design methodology for reduction of fuel, power and CO2 on total sites , 1997 .

[26]  Santanu Bandyopadhyay,et al.  Targeting for cogeneration potential through total site integration , 2010 .

[27]  Majid Saffar-Avval,et al.  Efficient design of feedwater heaters network in steam power plants using pinch technology and exergy analysis , 2008 .

[28]  Stephen G. Hall,et al.  Targeting for Furnace Systems Using Pinch Analysis , 1994 .

[29]  Justin Zachary.  Options for reducing a coal-fired plant's carbon footprint, Part II , 2008 .

[30]  Bodo Linnhoff,et al.  Total site targets for fuel, co-generation, emissions, and cooling , 1993 .

[31]  C. L. Leci,et al.  Financial implications on power generation costs resulting from the parasitic effect of CO2 capture using liquid scrubbing technology from power station flue gases , 1996 .

[32]  Peter Glavič,et al.  Design of the optimal total site heat recovery system using SSSP approach , 2006 .

[33]  Sean Plasynski,et al.  ENGINEERING FEASIBILITY OF CO2 CAPTURE ON AN EXISTING US COAL-FIRED POWER PLANT , 2001 .

[34]  Robin Smith,et al.  Modelling and Optimization of Utility Systems , 2004 .

[35]  A. E. Jansen,et al.  CO2 separation with polyolefin membrane contactors and dedicated absorption liquids: performances and prospects , 2002 .

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