| 1. |
- Jilvero, Henrik, 1984, et al.
(författare)
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Techno-economic Analysis of Carbon Capture at an Aluminum Production Plant – Comparison of Post-combustion Capture Using MEA and Ammonia
- 2014
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 63, s. 6590-6601
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Konferensbidrag (refereegranskat)abstract
- Two absorbents, ammonia and MEA, have been evaluated for post-combustion capture of carbon dioxide at an aluminum manufacturing plant with respect to technical and economic performance. Process simulations combined with advanced thermodynamic models are used to model the process performance. A detailed economical estimation has been made for both ammonia and MEA-based post combustion capture as a function of flue gas CO2 concentration. The two processes have been compared with respect to the specific capture cost (€/tCO2 captured). The results show that the ammonia-based process is the most cost efficient at high flue gas CO2 concentrations (7-10%) with a cost of 74-82 €/tCO2 and the MEA-based process is the most cost efficient option at low flue gas CO2 concentrations (3-4%) with a cost of 93-97 €/tCO2. A heat integration analysis reveals that up to 50% of the heat requirement can be covered with excess heat from the aluminum manufacturing plant, which potentially could reduce the capture cost with 10-15 €/tCO2.
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| 2. |
- Jilvero, Henrik, 1984, et al.
(författare)
-
Techno-economic evaluation of an ammonia-based post-combustion process integrated with a state-of-the-art coal-fired power plant
- 2014
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Ingår i: International Journal of Greenhouse Gas Control. - : Elsevier BV. - 1750-5836. ; 31, s. 87-95
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Tidskriftsartikel (refereegranskat)abstract
- A techno-economic evaluation of the application of an ammonia-based post-combustion CO2 capture system to an existing, state-of-the-art, coal-fired power plant. The study comprised an assessment of the ammonia-based capture process together with a detailed cost analysis, based on which the overall design of the capture process is presented, including a power plant integration strategy and estimates of the specific CO2 capture cost (€/tCO2). The evaluations of the power plant and the CO2 capture plant were based on process modeling. The cost analysis was based on the installed cost of each unit in the equipment list derived from the process simulation, which was determined using detailed-factor estimation. We show that the steam required for a CO2 capture efficiency of 90% lowers the electric output from 408.0MWel to 341.8MWel. The capital expenditure related to the retrofit of the reference power plant with CO2 capture is 230M€ and the operating expenditure is determined to be 66.5M€/year, corresponding to a relative capture cost of 35€/tCO2. Furthermore, the present work proposes design improvements that may reduce the cost of capture to 31€/tCO2.
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| 3. |
- Kjärstad, Jan, 1956, et al.
(författare)
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Transport of CO2 in the nordic region
- 2014
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 63, s. 2683-2690
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Konferensbidrag (refereegranskat)abstract
- NORDICCS is a virtual CCS networking platform aiming for increased CCS deployment in the five Nordic countries. This paper reports from work investigating options for CO2 transport infrastructure in the Nordic region. Five specific CCS cases have been selected from which capture is analyzed in detail and from which CO2 transport cost has been calculated assuming CO2 being captured only at the site itself or, assuming the selected capture site develops into a CO2-hub with CO2 from several adjacent sources. In the latter case cost has been calculated defining for what volumes pipeline transport becomes less costly than corresponding ship transport. Additionally, cost for both pipeline and ship transport has been calculated as a function of distance and volume in order to apply these calculations to derive the least costly transport mode for the fifty-five largest sources in the region with a coastal location. Also, the effect on cost for systems that will require ramp-up (i.e. transported volumes increase over time) has been calculated. Finally, an analysis of the potential for build-up of clusters in the region was performed. The work clearly shows that ship transport is the least costly transport option, not only for the five selected cases individually but also for most of the emission sources located along the coastline. The work also shows that ship transport is the least costly transport option for most of the potential clusters in the region during the ramp-up phase. An obvious but still important conclusion is that constrained storage capability and injectivity may have a profound impact on design and cost of a CO2 transport system.
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| 4. |
- Mazzetti, M.J., et al.
(författare)
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NORDICCS CCS roadmap
- 2014
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 51, s. 1-13
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Konferensbidrag (refereegranskat)abstract
- The Nordic CCS roadmap is developed in the NORDICCS project, a collaborative research project between leading CCS research institutions in the five Nordic countries. The roadmap will outline jointly developed Nordic strategies for widespread implementation of CCS in the Nordic countries in order to help Nordic industries meet a carbon constrained future with a high price on carbon emissions. It will identify pathways and milestones for large-scale Nordic implementation of CCS resulting in beneficial economies of scale that will increase the likelihood of implementation. Several novel cases will be presented that reveal future Nordic opportunities, including industrial CCS where emitters have large point sources of CO2 localized in clusters, and natural gas sweetening with the potential for use of Enhanced Oil Recovery (EOR) to defray the costs. Recommendations will be made for actions relating to joint political work in the Nordic region for improving the framework conditions for CCS.
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