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2008 | 10 | 4 | 45-48
Article title

Reduction of carbon dioxide emission through the sorption in situ using a fluidised bed reactor

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EN
Abstracts
EN
The paper discusses the possibility of using the reversible reaction CaCO3 ↔ CaO + CO2 for the cyclic capture and release of CO2 directly inside a fluidised bed combustor. This could lead to the lowering of CO2 emissions into the atmosphere, as part of an effort to mitigate the greenhouse effect associated with the rising atmospheric CO2 concentrations resulting from obtaining energy from burning fossil fuels.An enrichment coefficient E has been introduced and defined as a measure of the production of CO2 (on calcining CaCO3) or its removal (on carbonation of CaO) with respect to the level associated with fuel combustion alone. The observations made on the effect of introducing an additional external stream of CO2 on the efficiency of the chemical capture process have been described. Through an appropriate control of the temperature inside the reactor it is possible to change the value of E over the range [-0.8; 0.8]. This implies that up to about 80% of the CO2 derived from the fuel can be temporarily retained within the bed and released later, at a higher concentration. The proposed method of burning fuel in a chemically active fluidised bed could be an available method leading to CO2 isolation from the flue gases and leading to its eventual sequestration.
Publisher
Year
Volume
10
Issue
4
Pages
45-48
Physical description
Dates
published
1 - 1 - 2008
online
7 - 1 - 2009
References
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  • Żukowski, W. (2004). Combustion of Gaseous Fuels in a Fluidised Bed of Inert Particles (in Polish). Cracow, Poland: Cracow University of Technology
  • Żukowski, W. (2005). Methane and Ethane Combustion in an Inert Fluidized Bed. In Revelling in Reference: 18th International Conference on Fluidized Bed Combustion 22-25 May 2005 (paper FBC2005-78100). Toronto, Canada: ASME, New York
  • Baron, J., Bulewicz, E. M., Kandefer, S., Pilawska, M. & Żukowski, W. (2006). A simple physicochemical view of bubbling. In Revelling in Reference: 19th International Conference on Fluidized Bed Combustion 21-24 May 2006 (Paper 43C). Vienna, Austria: Vienna University of Technology
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10026-008-0047-x
Identifiers
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