Decarbonation rates of cycled CaO absorbents
Journal Article
·
· Energy and Fuels
OSTI ID:21073539
- Boreskov Institute of Catalysis, Novosibirsk (Russian Federation)
Decarbonation rates of cycled CaO sorbent were measured for a wide range of particle sizes (0.25-4 {mu}m), temperatures (747-830{sup o}C), and relative CO{sub 2} concentrations (0-95%). The decarbonation rate was found to decay exponentially with an increase in partial CO{sub 2} pressure that can be explained by assuming CaO nuclei formation is the rate-limiting step. A differential particle model using two variable parameters was successfully applied to fit the experimental data. An approximate analytical expression is put forward for the decarbonation rate as a function of sorbent texture, temperature, CO{sub 2} pressure, particle size, and Sherwood number. 24 refs., 6 figs.
- OSTI ID:
- 21073539
- Journal Information:
- Energy and Fuels, Vol. 22, Issue 3; ISSN 0887-0624
- Country of Publication:
- United States
- Language:
- English
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