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Analys av klimatpåverkan vid tillägg av CCS-teknologi till ett avfallseldat kraftvärmeverk

Björklind, Thomas LU (2025) FMIM01 20251
Environmental and Energy Systems Studies
Abstract (Swedish)
I detta examensarbete undersöks klimatpåverkan av tillägget av Carbon capture and storage (CCS) vid ett
avfallseldat kraftvärmeverk genom en livscykelanalys (LCA). Studien är en fallstudie som tillämpas på Sysavs
planerade CCS-anläggning vid kraftvärmeverket i Spillepengen, Malmö. Systemet som studeras innefattar kol-
dioxidavskiljning med aminteknik, transporter och lagring. Systemet undersöker effekterna av CCS-teknikens
tillägg, och exkluderar skorstensutsläpp, insamling av avfall och avfallsförbränningen. De valda funktionella
enheterna är: ton lagrad CO2 och ton lagrad biogen CO2.

Studien finner att tillägg och drift av CCS-kedjan ger upphov till 97 kg CO2-ekv. per ton CO2 lagrad och 176
kg CO2-ekv. per ton CO2, bio lagrad.... (More)
I detta examensarbete undersöks klimatpåverkan av tillägget av Carbon capture and storage (CCS) vid ett
avfallseldat kraftvärmeverk genom en livscykelanalys (LCA). Studien är en fallstudie som tillämpas på Sysavs
planerade CCS-anläggning vid kraftvärmeverket i Spillepengen, Malmö. Systemet som studeras innefattar kol-
dioxidavskiljning med aminteknik, transporter och lagring. Systemet undersöker effekterna av CCS-teknikens
tillägg, och exkluderar skorstensutsläpp, insamling av avfall och avfallsförbränningen. De valda funktionella
enheterna är: ton lagrad CO2 och ton lagrad biogen CO2.

Studien finner att tillägg och drift av CCS-kedjan ger upphov till 97 kg CO2-ekv. per ton CO2 lagrad och 176
kg CO2-ekv. per ton CO2, bio lagrad. Ca 75% av orsakade utsläpp är associerade med fartygstransporterna,
medan avskiljning står för ca 21%. Resultaten från genomförda känslighetsanalyser utmanar det vanligt
förekommande antagandet om försumbara utsläpp från konstruktioner nödgade av CCS-tillägg (Möllersten, Gustavsson, 2022). När associerade parametrar ökades femfaldigt gav konstruktioner ett relativt bidrag på
22%, jämfört med basfallets 3%.

Avslutningsvis visar studien att utformningen av CO2-transporten har stor betydelse för CCS-kedjans klimatpåverkan, och att långa fartygstransporter reducerar nettoklimatnyttan som kan genereras. Vidare är
perspektiv på den biogena koldioxidens klimatpåverkan viktiga för hur resultat från klimatberäkningar tolkas. (Less)
Abstract
In this master’s thesis, the climate impact of Carbon Capture and Storage (CCS) is assessed through life
cycle analysis (LCA). The study is applied to a real-life case where a CCS chain is being developed for Sysavs Waste-to-Energy (WtE) operations in Malmö, Sweden. The studied system entails amine-based separation
technology applied to a flue gas flow from a waste-fired combined heat and power plant (CHP), intermediary
transport and storage, ship-based transport to the final destination, and finally geological storage of CO2.
The system excludes emissions to stack, waste collection and combustion activities. The considered functions
of the system are the following: tonnes CO2 stored and tonnes biogenic CO2 stored.

The study finds... (More)
In this master’s thesis, the climate impact of Carbon Capture and Storage (CCS) is assessed through life
cycle analysis (LCA). The study is applied to a real-life case where a CCS chain is being developed for Sysavs Waste-to-Energy (WtE) operations in Malmö, Sweden. The studied system entails amine-based separation
technology applied to a flue gas flow from a waste-fired combined heat and power plant (CHP), intermediary
transport and storage, ship-based transport to the final destination, and finally geological storage of CO2.
The system excludes emissions to stack, waste collection and combustion activities. The considered functions
of the system are the following: tonnes CO2 stored and tonnes biogenic CO2 stored.

The study finds that the assessed CCS chain has a climate impact of 97 kg CO2-eq. per tonne CO2 stored and
176 kg CO2-eq. per tonne CO2, bio stored. About 75% of the emissions were caused by the transportation
of CO2 and associated losses, while the carbon capture and post-treatment represents 21%. The results from
conducted sensitivity analyses challenge assumptions of low relative climate impact from construction in
CCS-chains found in litterature (Möllersten, Gustavsson, 2022). When selected parameters for construction
materials was increased fivefold the relative contribution was 22%, compared to the base scenario’s 3%.

The analysis concludes that the design and mode of CO2 transportation has a significant impact on the
systems environmental performance, and long shipping routes reduce net climate benefit of the chain. Further,
assumptions and perspectives of the climate impact of biogenic CO2 has a decisive importance for the
interpretation of the results. (Less)
Please use this url to cite or link to this publication:
author
Björklind, Thomas LU
supervisor
organization
alternative title
Analysis of climate impact from add-on CCS at waste-to-energy combined heat and power plant
course
FMIM01 20251
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
CCS, life cycle assessment, LCA, biogenic carbon, WtE, Waste-to-Energy, Climate change
report number
LUTFD2/TFEM—25/5233–SE + (1-80)
ISSN
1102-3651
language
Swedish
id
9200314
date added to LUP
2025-06-16 14:14:04
date last changed
2025-06-16 14:14:04
@misc{9200314,
  abstract     = {{In this master’s thesis, the climate impact of Carbon Capture and Storage (CCS) is assessed through life
cycle analysis (LCA). The study is applied to a real-life case where a CCS chain is being developed for Sysavs Waste-to-Energy (WtE) operations in Malmö, Sweden. The studied system entails amine-based separation
technology applied to a flue gas flow from a waste-fired combined heat and power plant (CHP), intermediary
transport and storage, ship-based transport to the final destination, and finally geological storage of CO2.
The system excludes emissions to stack, waste collection and combustion activities. The considered functions
of the system are the following: tonnes CO2 stored and tonnes biogenic CO2 stored.

The study finds that the assessed CCS chain has a climate impact of 97 kg CO2-eq. per tonne CO2 stored and
176 kg CO2-eq. per tonne CO2, bio stored. About 75% of the emissions were caused by the transportation
of CO2 and associated losses, while the carbon capture and post-treatment represents 21%. The results from
conducted sensitivity analyses challenge assumptions of low relative climate impact from construction in
CCS-chains found in litterature (Möllersten, Gustavsson, 2022). When selected parameters for construction
materials was increased fivefold the relative contribution was 22%, compared to the base scenario’s 3%.

The analysis concludes that the design and mode of CO2 transportation has a significant impact on the
systems environmental performance, and long shipping routes reduce net climate benefit of the chain. Further,
assumptions and perspectives of the climate impact of biogenic CO2 has a decisive importance for the
interpretation of the results.}},
  author       = {{Björklind, Thomas}},
  issn         = {{1102-3651}},
  language     = {{swe}},
  note         = {{Student Paper}},
  title        = {{Analys av klimatpåverkan vid tillägg av CCS-teknologi till ett avfallseldat kraftvärmeverk}},
  year         = {{2025}},
}