CO 2 Capture in a Thermal Power Plant Using Sugarcane Residual Biomass

Sara Restrepo-Valencia () and Arnaldo Walter
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Sara Restrepo-Valencia: Department of Energy, School of Mechanical Engineering, University of Campinas—UNICAMP, Rua Mendeleyev, 200. Cidade Universitária “Zeferino Vaz” Barão Geraldo, Campinas 13083-860, Brazil
Arnaldo Walter: Department of Energy, School of Mechanical Engineering, University of Campinas—UNICAMP, Rua Mendeleyev, 200. Cidade Universitária “Zeferino Vaz” Barão Geraldo, Campinas 13083-860, Brazil

Energies, 2023, vol. 16, issue 12, 1-19

Abstract: The decarbonization of energy matrices is crucial to limit global warming below 2 °C this century. An alternative capable of enabling zero or even negative CO 2 emissions is bioenergy with carbon capture and storage (BECCS). In this sense, the Brazilian sugar–energy sector draws attention, as it would be possible to combine the production of fuel and electricity from renewable biomass. This paper is the final part of a study that aimed to research carbon capture and storage (CCS) in energy systems based on sugarcane. The case studied is CCS in thermal power plants considering two different technologies: the steam cycle based on the condensing–extraction steam turbine (CEST) and the combined cycle integrated to biomass gasification (BIG-CC). The results for the thermal power plant indicate that the CO 2 capture costs may be lower than those in cogeneration systems, which were previously studied. The main reasons are the potential scale effects and the minimization of energy penalties associated with integrating the CCS system into the mills. In the best cases, capture costs can be reduced to EUR 54–65 per ton of CO 2 for the CEST technology and EUR 57–68 per ton of CO 2 for the BIG-CC technology.

Keywords: BECCS; bioelectricity; carbon capture and storage; carbon sequestration; climate change; negative emissions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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