Abstract
This paper compares three different bio-energy co-generation power station concepts where CO2 is sequestered and available for permanent storage instead of discharging into the atmosphere. The different bio-energy cogeneration systems are: The pre-combustion capture of CO2, the post-combustion capture of CO2 from the flue gas and the combustion in an atmosphere of pure oxygen (Graz-Cycle). The three schemes, all based on a thermal input of about 150 MWth, are compared on the basis of their technological features, their performance, projected costs of electricity and CO2 mitigation costs. Compared to a conventional bio-energy cogeneration system, CO2 removal reduces net plant efficiency by 11 to 16 percentage points and increases the cost of electricity by approximately 54 to 89%. The scheme applying reforming and shift reaction and physical absorption of the syngas fuel appears the most appealing option for the short-term implementation of CO2 sequestration bio-energy cogeneration systems. The Graz-Cycle where the syngas is burnt in pure oxygen appears the most appealing option for the long-term option for CO2 sequestration.
Originalsprache | englisch |
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Titel | Proceedings of ASME TURBO EXPO 2004 |
Herausgeber (Verlag) | . |
Seiten | 185-192 |
Seitenumfang | 8 |
Publikationsstatus | Veröffentlicht - 23 Dez. 2004 |
Veranstaltung | ASME Turbo Expo 2004 - Wien, Österreich Dauer: 14 Juni 2004 → 17 Juni 2004 |
Konferenz
Konferenz | ASME Turbo Expo 2004 |
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Land/Gebiet | Österreich |
Ort | Wien |
Zeitraum | 14/06/04 → 17/06/04 |
ASJC Scopus subject areas
- Allgemeiner Maschinenbau