| Autor: |
Kuramochi, T., Ramírez Ramírez, C.A., Turkenburg, W.C., Faaij, A.P.C., Options for a sustainable energy supply, Sub Science, Technology & Society begr. |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Energy Procedia, 4, 1981. Elsevier BV |
| ISSN: |
1876-6102 |
| DOI: |
10.1016/j.egypro.2011.02.079 |
| Popis: |
This paper presents the methodology and the preliminary results of a techno-economic assessment of CCS implementation on the iron and steel sector. The results show that for the short-mid term, a CO 2 avoidance cost of less than 50 € /tonne at a CO 2 avoidance rate of around 50% are possible by converting the conventional blast furnace (BF) to Top Gas Recycling Blast Furnace (TGRBF). However, large additional power consumption for CO 2 removal and oxygen generation, and reduction in BF gas export, makes the economic performance of the technology very sensitive to energy prices. Add-on CO 2 capture for conventional BF may achieve similar costs (40–50 € /t CO 2 avoided), but the CO 2 avoidance rate will be only about 15% of the specific CO 2 emissions. For the long term future, although there are large uncertainties, advanced CO 2 capture technologies do not seem to have significant economic advantages over conventional technologies. The results also indicate that in a carbon-constrained society, when considering new plants, smelting reduction technologies such as the COREX process, may become a strong competitor to conventional blast furnace based steel making process when equipped with CO 2 capture. Although conventional iron and steel making using BF is expected to dominate the market in the long term, strong need for drastic CO 2 emissions reduction may drive the sector towards large scale implementation of advanced smelting reduction technologies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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