ALSTOM is actively working to develop circulating fluidized bed (CFB) based technologies to continue to reduce costs and mitigate CO2. Advanced ALSTOM concepts include “the oxygen-fired CFB,” which uses pure oxygen plus recirculated flue gas (mainly CO2) as a combustion medium, resulting in a flue gas stream with a high CO2 concentration. Consequently, CO2 can be separated from the flue gas stream relatively easily. As such, this technology is geared toward CO2 mitigation. Another advancement, “the circulating moving bed (CMBTM)” system, uses a novel heat exchanger design that heats the energy cycle working fluid to the high temperature levels required for advanced power generation systems. The CMBTM combustion system is also an enabling technology for hydrogen production and CO2 capture from combustion systems utilizing innovative chemical looping gasification and syngas decarbonization. Chemical looping is another development path towards CO2 mitigation. In ALSTOM’s processes, oxygen (from air) is transported by a solid oxygen carrier for combustion or gasification of the fuel. CO2 is captured in a separate chemical loop in the gasification process. The process can be used to produce nearly pure CO2 and steam for a Rankine cycle; or synthesis gas or hydrogen with CO2 capture for IGCC’s, fuel cells, or industrial use. This paper will discuss ALSTOM’s latest work and the technical and economic implications of these advanced CFB-based systems. These advanced power generation units can be built from proven fluid bed design features and systems and the same processes supporting current-state technology enable rational development of future-state power generation and CO2 capture.
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18th International Conference on Fluidized Bed Combustion
May 22–25, 2005
Toronto, Ontario, Canada
Conference Sponsors:
- Advanced Energy Systems
ISBN:
0-7918-4183-9
PROCEEDINGS PAPER
An ALSTOM Vision of Future CFB Technology Based Power Plant Concepts Available to Purchase
Nsakala Ya Nsakala,
Nsakala Ya Nsakala
ALSTOM, Windsor, CT
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Herb Andrus
Herb Andrus
ALSTOM, Windsor, CT
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Glen Jukkola
ALSTOM, Windsor, CT
Greg Liljedahl
ALSTOM, Windsor, CT
Nsakala Ya Nsakala
ALSTOM, Windsor, CT
Jean-Xavier Morin
ALSTOM, France
Herb Andrus
ALSTOM, Windsor, CT
Paper No:
FBC2005-78104, pp. 109-120; 12 pages
Published Online:
October 7, 2008
Citation
Jukkola, G, Liljedahl, G, Nsakala, NY, Morin, J, & Andrus, H. "An ALSTOM Vision of Future CFB Technology Based Power Plant Concepts." Proceedings of the 18th International Conference on Fluidized Bed Combustion. 18th International Conference on Fluidized Bed Combustion. Toronto, Ontario, Canada. May 22–25, 2005. pp. 109-120. ASME. https://doi.org/10.1115/FBC2005-78104
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