Preliminary Cost and Performance Results for a Natural Gas-Fired Direct sCO2 Power Plant

Conference · Tue Mar 27 04:00:00 EDT 2018

OSTI ID:1491113

Weiland, Nathan ^[1]; White, Chuck ^[2]

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1. NETL
2. KeyLogic Systems, LLC

<span>This study reports on a cost and performance baseline developed at NETL for a natural gas-fueled direct sCO2 plant, which holds promise as an efficient, cost-effective method of power production with carbon capture and storage (CCS).&nbsp; The steady state plant model includes turbine cooling flows based on a semi-empirical cooling model, and thermal integration with the air separation unit and oxygen compression train.&nbsp; Discussion of the performance of the baseline plant design is followed by details on the costing methodology, overall plant capital cost, and resulting cost of electricity (COE).&nbsp; Performance results yield a baseline sCO2 plant thermal efficiency of 48.2% (HHV) with 98.2% carbon capture, an improvement over the reference NGCC plant with CCS (45.7% and 90.7% carbon capture).&nbsp; Cost analyses yield a 5% reduction in COE versus the NGCC plant, albeit with significant uncertainty.&nbsp; Finally, the effects of incomplete combustion on the overall plant performance are assessed.</span>

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: (FE-22) - FE-22
• DOE Contract Number: FE0025912
• OSTI ID: 1491113
• Report Number(s): NETL-PUB-21481
• Country of Publication: United States
• Language: English