Demonstration of a Concentrated Potassium Carbonate Process for CO2 Capture
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A precipitating potassium carbonate (K2CO3)-based solvent absorption process has been developed by the Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) for capturing carbon dioxide (CO2) from industrial sources, such as power plant flue gases. Demonstration of this process is underway using both a laboratory-based pilot plantlocated at The University of Melbourne and an industrial pilot plant located at the Hazelwood Power Station in Victoria, Australia. The laboratory-scale pilot plant has been designed to capture 4-10 kg/h CO2 from an air/CO2 feed gas rate of 30-55 kg/h. The power-station-based pilot plant has been designed to capture up to 1 tonne/day CO2 from the flue gas of a browncoal-fired power station. In this paper, results from trials using concentrated potassium carbonate (20-40 wt %) solvent are presented for both pilot plants. Performance data (including pressure drop, holdup, solvent loadings, temperature profile, and CO2 removal efficiency) have been collected from each plant and presented for a range of operating conditions. Plant data for thelaboratory-scale pilot plant (including temperature profiles, solvent loadings, and exit gas CO2 concentrations) have been used to validate and further develop Aspen Plus simulations, in anticipation of further work involving precipitation and the industry based pilot plant.
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Smith, K.; Quyn, Dimple; Indrawan; Thanumurthy, N.; Guow, J.; Nicholas, N. (2013)The Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) researches and develops technologies for carbon dioxide capture and geological storage of carbon dioxide. The CO2CRC solvent capture group are ...
Post-combustion Capture of CO2: Results from the Solvent Absorption Capture Plant at Hazelwood Power Station Using Potassium Carbonate SolventMumford, K.; Smith, K.; Anderson, C.; Shen, S.; Tao, W.; Suryaputradinata, Y.; Quyn, Dimple; Qader, A.; Hooper, B.; Innocenzi, R.; Kentish, S.; Stevens, G. (2012)Post-combustion capture of CO2 from flue gas generated in a 1600 MW brown-coal-fired power station has been demonstrated using a solvent absorption process. The plant, located at International Power’s Hazelwood power ...
Quyn, Dimple; Rayer, A.; Gouw, J.; Indrawan, I.; Mumford, K.; Anderson, C.; Hooper, B.; Stevens, G. (2013)A pilot plant facility has been designed and built to trial potassium carbonate solvent technology for carbon capture under a range of conditions. The rig is capable of capturing 4 - 10 kg/hr of CO2 from 30 - 55 kg/hr of ...