- Title
- Estimation of the carbonation reaction kinetic parameters for dilute methane and carbon dioxide conditions in a calcium looping process
- Creator
- Patel, Savankumar; Tremain, Priscilla; Moghtaderi, Behdad; Sandford, James; Shah, Kalpit
- Relation
- Environmental Progress and Sustainable Energy Vol. 37, Issue 4, p. 1312-1318
- Publisher Link
- http://dx.doi.org/10.1002/ep.12809
- Publisher
- John Wiley & Sons
- Resource Type
- journal article
- Date
- 2017
- Description
- Experimental investigations were carried out to determine the intrinsic kinetic parameters of the carbonation reaction of limestone (CaCO₃) in a calcium looping (CL) process for (1) dilute carbon dioxide conditions (1 vol % CO₂ in air) and (2) dilute methane conditions (1 vol % CH₄ in air). The random pore model (RPM) was applied to estimate the gas-solid heterogeneous kinetic parameters and further used to study the effects of bed temperature, fluidizing velocity and inventory size on carbon dioxide capture and methane combustion. Experiments were conducted in a single lab-scale bubbling fluidized bed reactor on calcined limestone at a range of temperatures (450-600°C) and inventory sizes (8-16 g). The activation energy determined for the carbonation reaction in dilute CO₂ and dilute CH₄ conditions were found to be 25.7 × 103kJ/kmol and 22.3 × 103kJ/kmol, respectively. These values were compared with the conventional calcium looping process (12-15% CO₂ in flue gas).
- Subject
- calcium looping; combustion; methane oxidation; ventilation air methane; bubbling fluidised beds; kinetics
- Identifier
- http://hdl.handle.net/1959.13/1393339
- Identifier
- uon:33519
- Identifier
- ISSN:1944-7442
- Language
- eng
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