Techno-economic Analysis of an Integrated Gasification Direct-Fired Supercritical CO2 Power Cycle Manuscript
- NETL
- KeyLogic
This study describes systems analyses of an entrained flow coal gasification system integrated with an oxy-fired direct supercritical CO2 (sCO2) power cycle. Conceptual designs are included for a baseline sCO2 plant and a revised plant with improved gasifier/sCO2 cycle thermal integration. The results yield plant thermal efficiencies of 37.7% (HHV) and 40.6% for the baseline and improved sCO2 cases, including >97% carbon capture and storage (CCS). These efficiencies are a significant improvement on the 31.2% efficiency of the same gasifier in integrated gasification combined cycle (IGCC) plant configuration with CCS, and are also shown to be comparable to more advanced IGCC systems and other coal-fueled direct sCO2 plants with CCS. Detailed economic analyses yield cost of electricity (COE) results of $137.3/MWh and $122.7/MWh for the baseline and improved sCO2 plants, respectively, representing 10% and 20% improvements on the reference IGCC COE of $152.6/MWh, with CCS.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Organization:
- FE-22
- DOE Contract Number:
- DE-FE0025912
- OSTI ID:
- 1491114
- Report Number(s):
- NETL-PUB-21184
- Journal Information:
- Fuel, Vol. 212, Issue None
- Country of Publication:
- United States
- Language:
- English
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