Journal article
Energy and exergy analyses of an integrated gasification combined cycle power plant with CO2 capture using hot potassium carbonate solvent
S Li, H Jin, L Gao, KA Mumford, K Smith, G Stevens
Environmental Science and Technology | AMER CHEMICAL SOC | Published : 2014
DOI: 10.1021/es5041706
Abstract
Energy and exergy analyses were studied for an integrated gasification combined cycle (IGCC) power plant with CO2 capture using hot potassium carbonate solvent. The study focused on the combined impact of the CO conversion ratio in the water gas shift (WGS) unit and CO2 recovery rate on component exergy destruction, plant efficiency, and energy penalty for CO2 capture. A theoretical limit for the minimal efficiency penalty for CO2 capture was also provided. It was found that total plant exergy destruction increased almost linearly with CO2 recovery rate and CO conversion ratio at low CO conversion ratios, but the exergy destruction from the WGS unit and the whole plant increased sharply when..
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Funding Acknowledgements
The authors would like to thank the National Natural Science Foundation of China for funding through Grant No. 51306185, the China 863 project through the Grant No. 2011AA050606, and also the Australia China Joint Coordination Group on Clean Coal Technology funding from the Australia Government. The author also would like to thank the Australian Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC), The Academy of Technological Sciences and Engineering (ATSE), and the Peter Cook Centre for Carbon Capture and Storage Research for supporting this work.