| 1. |
- Ali, Hassan, et al.
(författare)
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Cost estimation of heat recovery networks for utilization of industrial excess heat for carbon dioxide absorption
- 2018
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Ingår i: International Journal of Greenhouse Gas Control. - : Elsevier BV. - 1750-5836. ; 74, s. 219-228
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Tidskriftsartikel (refereegranskat)abstract
- The absorption of CO 2 using solvents (e.g., amines) is considered a state-of-the-art, albeit energy-intensive process for CO 2 capture. While it is generally recognized that the utilization of waste heat has potential to reduce the energy-associated costs for CO 2 capture, the cost of waste heat recovery is seldom quantified. In this work, the cost of heat-collecting steam networks for waste heat recovery for solvent regeneration is estimated. Two types of networks are applied to waste heat recovery from the flue gases of four process industries (cement, silicon, iron & steel, and pulp & paper) via a heat recovery steam generator (HRSG). A novel approach is presented that estimates the capital and operational expenditures for waste heat recovery from process industries. The results show that the overall cost (CAPEX + OPEX) of steam generated from one hot flue gas source is in the range of 1.1–4.1 €/t steam. The cost is sensitive to economic parameters, installation factors, the overall heat transfer coefficient, steam pressure, and to the complexity of the steam network. The cost of steam from an existing natural gas boiler is roughly 5–20-times higher than that of steam generated from recovered waste heat. The CAPEX required to collect the heat is the predominant factor in the cost of steam generation from waste heat. The major contributor to the CAPEX is the heat recovery steam generator, although the length of the steam pipeline (when heat is collected from two sources or over long distances) is also important for the CAPEX.
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| 2. |
- 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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| 3. |
- Normann, Fredrik, 1982, et al.
(författare)
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CO2stCap - Reducing the Cost of Carbon Capture in Process Industry
- 2019
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The CO2stCap-Project is a Norwegian-Swedish research initiative that was initiated in Year 2015 to reduce the cost of carbon capture in the process industry by developing concepts for the partial capture of emissions. The project is based on the premises that carbon capture and storage (CCS) is commercially available and can be implemented on a large scale, and that CCS is a required part of the solution to reduce global emissions of CO2 in line with the 1.5°C target. However, the substantial efforts made to develop low-carbon technologies have resulted in little implementation, as the value assigned to mitigating CO2 emissions is still too low relative to the risk associated with the considerable investment required, both from the industry and societal perspectives. The CO2stCap-Project is designed to enable the goals related to the reduction of CO2 emissions that have been established at the national, regional and global levels.
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| 4. |
- Normann, Fredrik, 1982, et al.
(författare)
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Partial Capture of Carbon Dioxide from Industrial Sources - A Discussion on Cost Optimization and the CO2 Capture Rate
- 2017
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 114, s. 113-121
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Konferensbidrag (refereegranskat)abstract
- This work discusses the cost optimal capture rate of absorption based carbon capture processes by a combination of process simulations and cost-estimation. The influence of the quality of the CO2 source (quantity, continuity and CO2 concentration) and the availability of low cost heat on the absolute and specific capture cost are highlighted. The results stress that partial capture of CO2 could lower the specific capture cost (€/ton CO2) and that the relation between capital expenditure and lowered energy demand should be reconsidered for cases with access to low-cost heat.
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| 5. |
- Skagestad, R., et al.
(författare)
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CO2stCap - Cutting Cost of CO2 Capture in Process Industry
- 2017
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Ingår i: Energy Procedia. - : Elsevier BV. - 1876-6102. ; 114, s. 6303-6315
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Konferensbidrag (refereegranskat)abstract
- This paper is a presentation of the CO2stCap project to be undertaken in the four year project period (2015 - 2019). The project focuses on partial CO2 capture in process industry and how this can be applied to reduce cost. By performing techno-economic analyses, the optimal capture rate, including optimal design, application and configuration for different industry sources can be obtained. Cost estimation methods are used as a basis to identify and verify potentials for cost reduction when applying different options for implementation of partial CO2 capture. CO2stCap. Industries studied in this project are pulp & paper, steel, cement and metallurgical production of silicon for solar cells.
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| 6. |
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| 7. |
- Skagestad, Ragnhild, 1978, et al.
(författare)
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Webinar: The CO2stCap project and overall results
- 2019
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- [recording at IEAGHG available on youtube - see link: https://www.youtube.com/watch?v=9tLLGKmMT9Y] The webinar will give an overview of the final results of the CO2stCap project. The CO2stCap-Project is a Norwegian-Swedish research initiative initiated in the Year 2015 to reduce the cost of carbon capture in the process industry by developing concepts for partial capture. The project focuses on four industrial processes that have process-related emissions of CO2 - that is, emissions are not only from heat supply but also part of the manufacturing process. Such emissions are likely to require CCS as they are difficult to reduce by measures like fuel-shift, electrification, or energy efficiency improvements. The project has showed that partial capture may reduce the cost for CO2 capture, and can be a first step for moving CCS forwards. Both technical and economical results will be presented at the webinar. Ragnhild Skagestad, SINTEF Industry will present " The CO2stCap project and overall results Max Bierman, Chalmers University will present " Scenario for near-term implementation of partial capture from blast furnace gases in Swedish steel industry" Anette Mathisen, SINTEF Industry will present " CO2 capture opportunities in the Norwegian silicon industry" Jens Wolf at RISE Bioeconomy will present " Partial Capture of CO2 From a Pulp Mill with Focus on Cost Reduction"
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