Thermodynamic analysis and profitability study of a power unit with an added CO2 capture plant

Łukasz Kowalczyk, Paweł Niegodajew, Stanisław Drobniak, Witold Elsner


Concerns over greenhouse gas emissions are driving a requirement for newly built coal power units to satisfy
the so-called “capture ready” conditions. This paper presents the a thermo-economic analysis supplemented by
a cost evaluation of a power unit for ultra-supercritical parameters expanded by an amine-based CO2 capture
plant. The analysis was performed with the use of an integrated package containing the IPSEpro, MATLAB and
Revenue Requirement Method implemented in MOExcel. The 0D model of a post combustion capture installation
was developed based on complex CFD calculations of the absorber and stripper. A number of CFD simulations
were conducted to create a large database, which was then utilized to develop suitable correlations describing the
Thermodynamic and economic calculations were performed in respect of a power plant coupled with a CO2
separation unit for a varying ratio of amine solvent to the exhaust gas stream (L/G). A local minimum for reboiler
heat duty was found for L/G3.5 revealing the optimal post combustion capture configuration. It was observed that
complementing the power unit with a post-combustion capture (PCC) installation causes a slight increase in the
investment costs due to the drop in efficiency, but more important is the rise in total cost due to the investment
associated with the CO2 capture plant. It was found that about 14 years is required to compensate the investment
cost of the PCC installation.

Full Text:



M. Wang, A. Lawal, P. Stephenson, J. Sidders, C. Ramshaw,

Post-combustion CO2 capture with chemical absorption: a

state-of-the-art review, Chemical Engineering Research and

Design 89 (9) (2011) 1609–1624.

D. Y. Leung, G. Caramanna, M. M. Maroto-Valer, An overview

of current status of carbon dioxide capture and storage technologies,

Renewable and Sustainable Energy Reviews 39

(2014) 426–443.

Y. Artanto, J. Jansen, P. Pearson, T. Do, A. Cottrell, E. Meuleman,

P. Feron, Performance of mea and amine-blends in the

csiro pcc pilot plant at loy yang power in australia, Fuel 101

(2012) 264–275.

J. Marion, F. Kluger, M. Sell, A. Skea, Advanced Ultra-

Supercritical Steam Power Plants, in: Proc. POWER-GEN

Asia KLCC, Kuala Lumpur, Malaysia, 2014.

D. Asendrych, P. Niegodajew, S. Drobniak, CFD modelling of

CO2 capture in a packed bed by chemical absorption, Chemical

and Process Engineering 34 (2) (2013) 269–282.

K. Stepczynska, L. Kowalczyk, S. Dykas, W. Elsner, Calculation

of a 900 mw conceptual 700/720oc coal-fired power unit

with an auxiliary extraction-backpressure turbine, Journal of

power technologies 92 (4) (2012) 266.

Ł. Kowalczyk, W. Elsner, Comparative analysis of optimisation

methods applied to thermal cycle of a coal fired power plant,

Archives of Thermodynamics 34 (4) (2013) 175–186.

L. Kowalczyk, W. Elsner, P. Niegodajew, The application of

non-gradient optimization methods to new concept of power

plant, Proc. 6th IC-EpsMsO, Athens, 8-11 July, 2015.

A. Aroonwilas, A. Veawab, Integration of CO2 capture unit

using single-and blended-amines into supercritical coal-fired

power plants: implications for emission and energy management,

International Journal of Greenhouse Gas Control 1 (2)

(2007) 143–150.

U. Desideri, A. Paolucci, Performance modelling of a carbon

dioxide removal system for power plants, Energy Conversion

and Management 40 (18) (1999) 1899–1915.

R.D. Brasington, Integration and operation of post-combustion

capture system on coal-fired power generation: load following

and peak power, MSc thesis, Massachusetts Institute of

Technology, 2012.

J. Marion, N. Nsakala, C. Bozzuto, G. Liljedahl, M. Palkes,

D. Vogel, et al., Engineering feasibility of CO2 capture on an

existing US coal-fired power plant, in: 26th Int. Conf. Coal Util.

Fuel Syst., Clearwater, Florida, 2001.

T. Sanpasertparnich, R. Idem, I. Bolea, P. Tontiwachwuthikul,

et al., Integration of post-combustion capture and storage into

a pulverized coal-fired power plant, International Journal of

Greenhouse Gas Control 4 (3) (2010) 499–510.

A. Lawal, M. Wang, P. Stephenson, O. Obi, Demonstrating

full-scale post-combustion CO2 capture for coal-fired power

plants through dynamic modelling and simulation, Fuel 101

(2012) 115–128.

J. Kotowicz, P. H. Lukowicz, Influence of chosen parameters

on economic effectiveness of a supercritical combined heat

and power plant, Journal of Power Technologies 93 (5) (2013)

K. Stepczynska, K. Bochon, H. Lukowicz, S. Dykas, Operation

of conceptual a-usc power unit integrated with co2 capture installation

at part load, Journal of Power Technologies 93 (5)

(2013) 383.

P. G. Cifre, K. Brechtel, S. Hoch, H. García, N. Asprion,

H. Hasse, G. Scheffknecht, Integration of a chemical process

model in a power plant modelling tool for the simulation of an

amine based CO2 scrubber, Fuel 88 (12) (2009) 2481–2488.

J. Kotowicz, M. A. Brzeczek, The influence of CO2 capture

and compression on the economic characteristics of a combined

cycle power plant, Journal of Power Technologies 93 (5)

(2013) 314.

W. Elsner, S. Drobniak, M. Marek, L. Kowalczyk, Sprawozdanie

merytoryczna za okres 01.05.2014-30.04.2015, Etap

1.IV1.1e, Udzial w syntezie wynikow, 2015.

W. Elsner, Ł. Kowalczyk, P. Niegodajew, S. Drobniak, Thermodynamic

analysis of a thermal cycle of supercritical power

plant, Mechanics and Mechanical Engineering 15 (3) (2011)


S. Dykas, S. Rulik, K. Ste˛pczyn´ska, et al., Thermodynamic

and economic analysis of a 900 mw ultra-supercritical power

unit, Archives of thermodynamics 32 (3) (2011) 231–244.

S. Kjaer, F. Drinhaus, A modified double reheat cycle, in:

ASME 2010 Power Conference, American Society of Mechanical

Engineers, 2010, pp. 285–293.

M. Bazmi, S. Hashemabadi, M. Bayat, Extrudate trilobe catalysts

and loading effects on pressure drop and dynamic liquid

holdup in porous media of trickle bed reactors, Transport in

porous media 99 (3) (2013) 535–553.

R. Billet, Packed Towers, Wiley-VCH Verlag GmbH & Co.

KGaA, Weinheim, FRG, 1995.

P. Niegodajew, D. Asendrych, S. Drobniak, Numerical analysis

of co2 capture efficiency in post combustion ccs technology in

terms of varying flow conditions, Archives of Thermodynamics

(4) (2013) 123–136.

P. Niegodajew, D. Asendrych, S. Drobniak, W. Elsner, Numerical

modelling of CO2 desorption process coupled with phase

transformation and heat transfer in ccs installation, Journal of

Power Technologies 93 (5) (2013) 354–362.

R. Notz, H. P. Mangalapally, H. Hasse, Post combustion CO2

capture by reactive absorption: pilot plant description and results

of systematic studies with mea, International Journal of

Greenhouse Gas Control 6 (2012) 84–112.

M. Wang, A. S. Joel, C. Ramshaw, D. Eimer, N. M. Musa,

Process intensification for post-combustion co 2 capture with

chemical absorption: a critical review, Applied Energy 158

(2015) 275–291.

A. Krótki, L. Wie˛cław-Solny, A. Tatarczuk, A. Wilk, D. S´ piewak,

Laboratory research studies of co2 absorption with the use of

% aqueous monoethanolamine solution, Archiwum Spalania

(4) (2012) 195–203.

H. Thee, Y. A. Suryaputradinata, K. A. Mumford, K. H. Smith,

G. da Silva, S. E. Kentish, G. W. Stevens, A kinetic and

process modeling study of co 2 capture with mea-promoted

potassium carbonate solutions, Chemical engineering journal

(2012) 271–279.

T. L. Sønderby, K. B. Carlsen, P. L. Fosbøl, L. G. Kiørboe,

N. von Solms, A new pilot absorber for CO2 capture from flue

gases: measuring and modelling capture with mea solution,

International Journal of Greenhouse Gas Control 12 (2013)


A. Kothandaraman, Carbon Dioxide Capture by Chemical Absorption,

A Solvent Comparison Study, PhD Thesis, Massachusetts

Institute of Technology, 2010.

P. Niegodajew, L. Kowalczyk, W. Elsner, Thermo-economic

optimisation method of modern power plant using complex algorithms

combined with revenue requirement method, Procee

th IC-EpsMsO, Athens, 8-11 July. (2015.

M. Finkenrath, Cost and performance of carbon dioxide capture

from power generation, 2011.

PowerTech, Reference Power Plant North Rhine-Westphalia.

Technical report, VGB PowerTech e.V. (project management),

J. Kotowicz, L. Bartela, A. Skorek-Osikowska, Analizy bloku

kogeneracyjnego na parametry nadkrytyczne zintegrowanego

z instalacja separacji CO2, Wydawnictwo Politechniki Slaskiej,

Gliwice, 2014.


  • There are currently no refbacks.