A techno-economic analysis of a natural gas combined cycle integrated with a pre-combustion CO 2 capture process based on the Ca-Cu process has been carried out. An extensive calculation of the balances of the entire power plant has been done, including the results obtained from a 1-D pseudo homogeneous model for the fixed bed reactors that compose the Ca-Cu process. Moreover, a methodology developed by the authors is here presented for calculating the cost of the electricity produced and of the CO 2 avoided. This methodology has been used to perform the economic analysis of the Ca-Cu based power plant and to optimize the size of the Ca-Cu reactors and the pressure drop in critical heat exchangers. An electricity cost of 82.6 €/MWh has been obtained for the Ca-Cu based power plant, which is 2.2 €/MWh below the benchmark power plant based on an Auto Thermal Reformer with an MDEA absorption process for CO 2 capture. The improved performance of the Ca-Cu based power plant in terms of electric efficiency and reduced capital cost expenditure is the reason for the reduced electricity costs. Moreover, a lower cost of CO 2 avoided is also obtained for the Ca-Cu plant with respect to the benchmark (80.75 €/t CO2 vs. 85.38 €/t CO2 ), which features 89% of CO 2 capture efficiency.

Techno-economic analysis of a natural gas combined cycle integrated with a Ca-Cu looping process for low CO2 emission power production

Martínez, I.;RIVA, LEONARDO;Romano, M. C.
2019

Abstract

A techno-economic analysis of a natural gas combined cycle integrated with a pre-combustion CO 2 capture process based on the Ca-Cu process has been carried out. An extensive calculation of the balances of the entire power plant has been done, including the results obtained from a 1-D pseudo homogeneous model for the fixed bed reactors that compose the Ca-Cu process. Moreover, a methodology developed by the authors is here presented for calculating the cost of the electricity produced and of the CO 2 avoided. This methodology has been used to perform the economic analysis of the Ca-Cu based power plant and to optimize the size of the Ca-Cu reactors and the pressure drop in critical heat exchangers. An electricity cost of 82.6 €/MWh has been obtained for the Ca-Cu based power plant, which is 2.2 €/MWh below the benchmark power plant based on an Auto Thermal Reformer with an MDEA absorption process for CO 2 capture. The improved performance of the Ca-Cu based power plant in terms of electric efficiency and reduced capital cost expenditure is the reason for the reduced electricity costs. Moreover, a lower cost of CO 2 avoided is also obtained for the Ca-Cu plant with respect to the benchmark (80.75 €/t CO2 vs. 85.38 €/t CO2 ), which features 89% of CO 2 capture efficiency.
Chemical looping; Combined cycle; Economic analysis; Hydrogen; Pre-combustion CO 2 capture ; Sorption enhanced reforming; Pollution; Energy (all); Industrial and Manufacturing Engineering; Management, Monitoring, Policy and Law
File in questo prodotto:
File Dimensione Formato  
2019 - Martinez, Martini, Riva, Gallucci, van Sint Annaland, Romano.pdf

Accesso riservato

Descrizione: Articolo principale
: Publisher’s version
Dimensione 3.46 MB
Formato Adobe PDF
3.46 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1078430
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 9
  • ???jsp.display-item.citation.isi??? 9
social impact