Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture

Siefert, Nicholas; Narburgh, Sarah; Chen, Yang

doi:10.3390/en9090669

Title: Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO₂ Capture

Abstract

We have conducted comprehensive exergy analyses of three integrated gasification combined cycle with carbon capture and storage (IGCC-CCS) power plant configurations: (1) a baseline model using Selexol™ for H₂S/CO₂ removal; (2) a modified version that adds a H₂-selective membrane before the Selexol™ acid gas removal system; and (3) a modified baseline version that uses a CO₂-selective membrane before the Selexol™ acid gas removal system. While holding the coal input flow rate and the CO₂ captured flow rates constant, it was determined that the H₂-selective membrane case had a higher net power output (584 MW) compared to the baseline (564 MW) and compared to the CO₂-selective membrane case (550 MW). Interestingly, the CO₂-selective membrane case destroyed the least amount of exergy within the power plant (967 MW), compared with the Baseline case (999 MW) and the H₂-membrane case (972 MW). The main problem with the CO₂-selective membrane case was the large amount of H₂ (48 MW worth of H₂ chemical exergy) remaining within the supercritical CO₂ that exits the power plant. Finally, regardless of the CO₂ capture process used, the majority of the exergy destruction occurred in the gasifier (305 MW) and gas turbine (~380 MW) subsystems, suggesting that these twomore »« less

Authors:

Siefert, Nicholas ^[1]; Narburgh, Sarah ^[1]; Chen, Yang ^[1]

National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)

Publication Date:: Wed Aug 24 00:00:00 EDT 2016

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1479645

Resource Type:: Accepted Manuscript

Journal Name:: Energies (Basel)

Additional Journal Information:: Journal Name: Energies (Basel); Journal Volume: 9; Journal Issue: 9; Journal ID: ISSN 1996-1073

Publisher:: MDPI AG

Country of Publication:: United States

Language:: English

Subject:: 20 FOSSIL-FUELED POWER PLANTS; exergy analysis; coal gasification; precombustion CO2 capture; process system modeling

Citation Formats


                    Siefert, Nicholas, Narburgh, Sarah, and Chen, Yang. Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture.  United States: N. p., 2016. 
Web.  doi:10.3390/en9090669.

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                    Siefert, Nicholas, Narburgh, Sarah, & Chen, Yang. Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture.  United States.  https://doi.org/10.3390/en9090669

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                    Siefert, Nicholas, Narburgh, Sarah, and Chen, Yang. Wed .  
"Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture".  United States.  https://doi.org/10.3390/en9090669.  https://www.osti.gov/servlets/purl/1479645.

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@article{osti_1479645,

  title        = {Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture},

  author       = {Siefert, Nicholas and Narburgh, Sarah and Chen, Yang},

  abstractNote = {We have conducted comprehensive exergy analyses of three integrated gasification combined cycle with carbon capture and storage (IGCC-CCS) power plant configurations: (1) a baseline model using Selexol™ for H2S/CO2 removal; (2) a modified version that adds a H2-selective membrane before the Selexol™ acid gas removal system; and (3) a modified baseline version that uses a CO2-selective membrane before the Selexol™ acid gas removal system. While holding the coal input flow rate and the CO2 captured flow rates constant, it was determined that the H2-selective membrane case had a higher net power output (584 MW) compared to the baseline (564 MW) and compared to the CO2-selective membrane case (550 MW). Interestingly, the CO2-selective membrane case destroyed the least amount of exergy within the power plant (967 MW), compared with the Baseline case (999 MW) and the H2-membrane case (972 MW). The main problem with the CO2-selective membrane case was the large amount of H2 (48 MW worth of H2 chemical exergy) remaining within the supercritical CO2 that exits the power plant. Finally, regardless of the CO2 capture process used, the majority of the exergy destruction occurred in the gasifier (305 MW) and gas turbine (~380 MW) subsystems, suggesting that these two areas should be key areas of focus of future improvements.},

  doi          = {10.3390/en9090669},

  journal      = {Energies (Basel)},

  number       = 9,

  volume       = 9,

  place        = {United States},

  year         = {Wed Aug 24 00:00:00 EDT 2016},

  month        = {Wed Aug 24 00:00:00 EDT 2016}

}

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Works referencing / citing this record:

De-Capacity Policy Effect on China’s Coal Industry
journal, June 2019

Hao, Xuguang; Song, Mei; Feng, Yunan
Energies, Vol. 12, Issue 12
DOI: 10.3390/en12122331

Exergy Analysis of Gas Switching Chemical Looping IGCC Plants
journal, January 2020

Arnaiz del Pozo, Carlos; Jiménez Álvaro, Ángel; Cloete, Jan Hendrik
Energies, Vol. 13, Issue 3
DOI: 10.3390/en13030544

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Title: Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO2 Capture

Abstract

Citation Formats

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Energy and exergy analysis of hydrogen-oriented coal gasification with CO 2 capture journal, September 2012

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Title: Comprehensive Exergy Analysis of Three IGCC Power Plant Configurations with CO₂ Capture

Gas separation by high-flux, asymmetric hollow-fiber membrane
journal, December 1986

Simulation of a Process to Capture CO2 From IGCC Syngas Using a High Temperature PBI Membrane
journal, February 2009

Exergetic Comparison of Two KRW-Based IGCC Power Plants
journal, April 1994

CO2 control technology effects on IGCC plant performance and cost
journal, March 2009

Energy and exergy analysis of hydrogen-oriented coal gasification with CO 2 capture
journal, September 2012

Energy and Exergy Analyses of an Integrated Gasification Combined Cycle Power Plant with CO ₂ Capture Using Hot Potassium Carbonate Solvent
journal, November 2014

Comparison of carbon capture IGCC with pre-combustion decarbonisation and with chemical-looping combustion
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Economic evaluation of pre-combustion CO2-capture in IGCC power plants by porous ceramic membranes
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Exergy and economic analysis of a CaO-looping gasifier for IGFC–CCS and IGCC–CCS
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Energy and exergy analysis of a new hydrogen-fueled power plant based on calcium looping process
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Mineral matter transformation during Sasol-Lurgi fixed bed dry bottom gasification – utilization of HT-XRD and FactSage modelling
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