A techno-economic assessment of CO2 capture in biomass and waste-fired combined heat and power plants – A Swedish case study
Artikel i vetenskaplig tidskrift, 2022

The need to reduce global CO2 emissions is urgent and might be facilitated by carbon capture and storage (CCS) technologies. Sweden has a goal to reach net-zero emissions by 2045. Negative emissions and bio-CCS (BECCS) have been proposed as important strategies to reach this target at the lowest cost. The Swedish district heating sector constitutes a large potential for BECCS, with biogenic point sources of CO2 in the form of combined heat and power (CHP) plants that burn biomass residues from the forest industry. This study analyzes the potential of CO2 capture in 110 existing Swedish biomass or waste-fired CHP plants. Process models of CHP steam cycles give the impacts of absorption-based CCS on heat and electricity production, while a district heating system unit commitment model gives the impact on plant operation and the potential for CO2 capture. The results provide a cost for carbon capture and transport to the nearest harbor by truck: up to 19.3 MtCO2/year could be captured at a cost in the range of 45–125 €/tCO2, corresponding to around 40% of the total fossil fuel-based Swedish CO2 emissions. This would be sufficient to meet a proposed target of 3–10 Mt/year of BECCS by 2045.

District heating

Negative emissions

Combined heat and power

CCS

Heat integration

Författare

Johanna Beiron

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Fredrik Normann

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

International Journal of Greenhouse Gas Control

1750-5836 (ISSN)

Vol. 118 103684

Drivkrafter

Hållbar utveckling

Ämneskategorier

Energiteknik

Annan naturresursteknik

Energisystem

Styrkeområden

Energi

DOI

10.1016/j.ijggc.2022.103684

Mer information

Senast uppdaterat

2022-05-20