Projects per year
Abstract / Description of output
In this study, it was sought to find an efficient way to integrate a Ca-looping process with a Natural Gas Combined Cycle (NGCC) power plant for its post-combustion CO2 capture. Compared to its application to coal combustion flue gas, Ca-looping would incur augmented energy penalty when integrated with a NGCC of which the flue gas contains only 4.0 mol% CO2. The reduced CO2 concentration in the feed requires the carbonator to operate at a lower temperature and more solids to circulate between carbonator and calciner for keeping up the carbon capture efficiency at 90%. However, this study demonstrated that such negative effects could be alleviated greatly by implementing 40% exhaust gas recirculation to the NGCC with the CO2 concentration in the flue gas increasing up to 6.8 %. Accordingly, the resulting net power efficiency increased notably 1.6% points in comparison to its equivalent non-EGR NGCC case and it was only 0.9% point less than amine capture case. This study exhibited that exhaust gas recirculation would be crucial in decarbonising a NGCC power plant by Ca-looping.
Original language | English |
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Pages (from-to) | 480-488 |
Number of pages | 9 |
Journal | Applied Energy |
Volume | 187 |
Early online date | 26 Nov 2016 |
DOIs | |
Publication status | Published - 1 Feb 2017 |
Keywords / Materials (for Non-textual outputs)
- Ca-looping
- Exhaust gas recirculation
- Natural Gas Combined Cycle
- Process integration and simulation
- CO2 capture
Fingerprint
Dive into the research topics of 'Process integration of a Calcium-looping process with a natural gas combined cycle power plant for CO2 capture and its improvement by exhaust gas recirculation'. Together they form a unique fingerprint.Projects
- 2 Finished
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A compact CO2 capture process to combat industrial emissions
Fan, X., Ahn, H., Sweatman, M. & Ahn, H.
1/05/16 → 31/07/20
Project: Research
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AMPGas: Adsorption Materials and Processes for Carbon Capture from Gas-Fired Power Palnts - AMPGas
1/09/12 → 31/08/16
Project: Research
Datasets
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Process integration of a Calcium-looping process with a natural gas combined cycle power plant for CO2 capture and its improvement by exhaust gas recirculation
Ahn, H. (Creator), Edinburgh DataShare, 18 Jan 2017
DOI: 10.7488/ds/1559
Dataset