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Title: Performance and Cost Assessment of a Coal Gasification Power Plant Integrated with a Direct-Fired sCO2 Brayton Cycle

Abstract

The objective of this study is to develop a cost and performance baseline for a coal syngas-fueled, direct-fired supercritical carbon dioxide (sCO2) power plant using coal gasification, and to analyze the sensitivity of its cost and performance to variations in operating parameter and cost assumptions.  The study results yield a sCO2 baseline plant efficiency of 37.7% (HHV), with 97.6% carbon capture at 99.8% purity, much higher than the reference integrated gasification combined cycle (IGCC) plant using the same Shell gasifier (31.2% efficiency, 90% carbon capture).  The economic analysis estimates a cost of electricity (COE) of $137/MWh for the mature, commercial-scale sCO2 plant (without CO2 transport and storage costs), yielding a 10% reduction in COE from the reference IGCC case.  These results demonstrate the significant potential of direct sCO2 power cycles for achieving DOE’s transformational power generation goals for coal-fueled power plants with carbon capture and storage.

Authors:
 [1];  [1];  [1];  [2];  [3]
  1. NETL
  2. KeyLogic
  3. Noblis
Publication Date:
Research Org.:
NETL
Sponsoring Org.:
FE-22
OSTI Identifier:
1491109
Report Number(s):
NETL-PUB-21435
DOE Contract Number:  
DE-FE0025912
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
coal; gasification; direct sCO2; supercritical CO2 (sCO2); techno-economic analyses

Citation Formats

Weiland, Nathan, Shelton, Walter, Shultz, Travis, White, Charles W., and Gray, David. Performance and Cost Assessment of a Coal Gasification Power Plant Integrated with a Direct-Fired sCO2 Brayton Cycle. United States: N. p., 2017. Web. doi:10.2172/1491109.
Weiland, Nathan, Shelton, Walter, Shultz, Travis, White, Charles W., & Gray, David. Performance and Cost Assessment of a Coal Gasification Power Plant Integrated with a Direct-Fired sCO2 Brayton Cycle. United States. doi:10.2172/1491109.
Weiland, Nathan, Shelton, Walter, Shultz, Travis, White, Charles W., and Gray, David. Mon . "Performance and Cost Assessment of a Coal Gasification Power Plant Integrated with a Direct-Fired sCO2 Brayton Cycle". United States. doi:10.2172/1491109. https://www.osti.gov/servlets/purl/1491109.
@article{osti_1491109,
title = {Performance and Cost Assessment of a Coal Gasification Power Plant Integrated with a Direct-Fired sCO2 Brayton Cycle},
author = {Weiland, Nathan and Shelton, Walter and Shultz, Travis and White, Charles W. and Gray, David},
abstractNote = {The objective of this study is to develop a cost and performance baseline for a coal syngas-fueled, direct-fired supercritical carbon dioxide (sCO2) power plant using coal gasification, and to analyze the sensitivity of its cost and performance to variations in operating parameter and cost assumptions.  The study results yield a sCO2 baseline plant efficiency of 37.7% (HHV), with 97.6% carbon capture at 99.8% purity, much higher than the reference integrated gasification combined cycle (IGCC) plant using the same Shell gasifier (31.2% efficiency, 90% carbon capture).  The economic analysis estimates a cost of electricity (COE) of $137/MWh for the mature, commercial-scale sCO2 plant (without CO2 transport and storage costs), yielding a 10% reduction in COE from the reference IGCC case.  These results demonstrate the significant potential of direct sCO2 power cycles for achieving DOE’s transformational power generation goals for coal-fueled power plants with carbon capture and storage.},
doi = {10.2172/1491109},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {9}
}