Integration of a coal fired power plant with calcium looping CO2 capture and concentrated solar power generation: Energy, exergy and economic analysis

Soheil Khosravi, Siamak Hossainpour, Hossein Farajollahi and Nemat Abolzadeh

Energy, 2022, vol. 240, issue C

Abstract: In conventional calcium looping (CaL) CO2 capture process, the heat of calcination is provided by burning additional fuel in the calciner that leads to thermal efficiency drop of the power plant. Coupling of CaL with concentrated solar power (CSP) can supply required heat and improve its drawback. In this study, a CaL-CSP system has been modeled to integrate with a 500 MW coal-fired power plant. Moreover, two steam cycles were designed to effectively recover available heat sources. The performance of the system was evaluated by employing energy, exergy and economic analysis. For CO2 capture efficiency of 93%, the calciner requires 1293 MWth thermal power which was supplied by heliostat field with efficiency of 88.56%. The net electrical efficiency of the overall system and the levelized cost of electricity were determined 33.22% and 120.27 $/MWh respectively. The results showed that the designed system does not impose any thermal efficiency drop on the power plant and its economic performance is competitive with other CO2 capture technologies. The exergy analysis indicated that the calciner side had a lower exergy efficiency (82.61%) in comparison with the carbonator side (88.51%) due to the higher exergy destruction in the calciner reactor and the compression unit.

Keywords: Calcium looping; CO2 capture and compression; Coal fired power plant; Concentrated solar power; Energy efficiency; Exergy efficiency (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544221027158
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:240:y:2022:i:c:s0360544221027158

DOI: 10.1016/j.energy.2021.122466

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().