Thermodynamic and economic evaluation of a CO2 membrane separation unit integrated into a supercritical coal-fired heat and power plant

• Autorzy: Skorek-Osikowska A. , Bartela Ł. , Kotowicz J.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of thermodynamic and economic analysis of a coal-fired combined heat and power plant (CHP) working at supercritical parameters, integrated with a carbon dioxide capture unit based on membrane technologies. Two membrane system configurations are described, compared and optimized. Both consist of a twostage membrane unit, but in the first variant (Case 1) no recirculation is performed while in the second one (Case 2), retentate from behind the second membrane is recirculated before the first membrane. The economic analysis includes a comparison of the systems with a unit working without CO2 capture (reference unit). The main thermodynamic (annual generation of the products, efficiencies) and economic (break-even price of electricity, break-even price of membranes) indices are presented in this paper. The results show that the profitability of the investment in CHP units integrated with CO2 capture is strongly dependent on the annual operation time and price of emission allowances. Better thermodynamic and economic characteristics are obtained for the system with retentate recirculation than for the system without recirculation.

Słowa kluczowe

EN

membrane CO2 separation; combined heat and power plant; thermodynamic analysis; economic analysis

PL

separacja membranowa; rozdzielanie membranowe; CO2; dwutlenek węgla; skojarzona gospodarka energetyczna; analiza termodynamiczna; analiza ekonomiczna

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2015
• Tom: Vol. 95, nr 3
• Strony: 201--210
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Skorek-Osikowska A.

• Institute of Thermal Technology, Silesian University of Technology, Konarskiego 22, 41-106 Gliwice, Poland

autor

Bartela Ł.

• Institute of Thermal Technology, Silesian University of Technology, Konarskiego 22, 41-106 Gliwice, Poland

autor

Kotowicz J.

• Institute of Thermal Technology, Silesian University of Technology, Konarskiego 22, 41-106 Gliwice, Poland

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