Fuel synthesis with CO2 captured from atmosphere: Thermodynamic analysis

T. Wang

doi:10.1149/1.3702409

Fuel synthesis with CO₂ captured from atmosphere: Thermodynamic analysis

T. Wang^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

Synthetic hydrocarbon fuel, derived from renewable energy and captured carbon dioxide from flue gas and/or ambient air, can close its carbon cycle and is an important approach to sustainable energy. In this study, the thermodynamic performance of a coelectrolysis process for producing hydrogen and carbon monoxide from water and captured CO₂ is investigated, based on current carbon capture and high-temperature electrolysis technologies. The exergy analysis is useful because it can reveal the energy losses due to irreversibilities and indicate possibilities for improvement of a process. Fuel synthesis systems integrated with or separated from different carbon capture technologies were evaluated and the analysis results have indicated that compared to the energy/exergy consumed by electrolysis, the energy/exergy penalty from CO₂ capture is insignificant. The thermodynamic efficiency of fuel synthesis could be increased by developing fuel generation technologies with lower electricity requirements, especially when using solar and nuclear energy.

Original language	English
Title of host publication	Electrochemical Synthesis of Fuels 1
Pages	13-24
Number of pages	12
Edition	33
DOIs	https://doi.org/10.1149/1.3702409
State	Published - 2012
Externally published	Yes
Event	1st International Symposium on Electrochemical Synthesis of Fuels, ESF 2011 - 220th ECS Meeting - Boston, MA, United States Duration: 9 Oct 2011 → 14 Oct 2011

Publication series

Name	ECS Transactions
Number	33
Volume	41
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	1st International Symposium on Electrochemical Synthesis of Fuels, ESF 2011 - 220th ECS Meeting
Country/Territory	United States
City	Boston, MA
Period	9/10/11 → 14/10/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 13 Climate Action

ASJC Scopus subject areas

General Engineering

Access to Document

10.1149/1.3702409

Cite this

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title = "Fuel synthesis with CO2 captured from atmosphere: Thermodynamic analysis",

abstract = "Synthetic hydrocarbon fuel, derived from renewable energy and captured carbon dioxide from flue gas and/or ambient air, can close its carbon cycle and is an important approach to sustainable energy. In this study, the thermodynamic performance of a coelectrolysis process for producing hydrogen and carbon monoxide from water and captured CO2 is investigated, based on current carbon capture and high-temperature electrolysis technologies. The exergy analysis is useful because it can reveal the energy losses due to irreversibilities and indicate possibilities for improvement of a process. Fuel synthesis systems integrated with or separated from different carbon capture technologies were evaluated and the analysis results have indicated that compared to the energy/exergy consumed by electrolysis, the energy/exergy penalty from CO2 capture is insignificant. The thermodynamic efficiency of fuel synthesis could be increased by developing fuel generation technologies with lower electricity requirements, especially when using solar and nuclear energy.",

author = "T. Wang",

year = "2012",

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note = "1st International Symposium on Electrochemical Synthesis of Fuels, ESF 2011 - 220th ECS Meeting ; Conference date: 09-10-2011 Through 14-10-2011",

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T2 - 1st International Symposium on Electrochemical Synthesis of Fuels, ESF 2011 - 220th ECS Meeting

AU - Wang, T.

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N2 - Synthetic hydrocarbon fuel, derived from renewable energy and captured carbon dioxide from flue gas and/or ambient air, can close its carbon cycle and is an important approach to sustainable energy. In this study, the thermodynamic performance of a coelectrolysis process for producing hydrogen and carbon monoxide from water and captured CO2 is investigated, based on current carbon capture and high-temperature electrolysis technologies. The exergy analysis is useful because it can reveal the energy losses due to irreversibilities and indicate possibilities for improvement of a process. Fuel synthesis systems integrated with or separated from different carbon capture technologies were evaluated and the analysis results have indicated that compared to the energy/exergy consumed by electrolysis, the energy/exergy penalty from CO2 capture is insignificant. The thermodynamic efficiency of fuel synthesis could be increased by developing fuel generation technologies with lower electricity requirements, especially when using solar and nuclear energy.

AB - Synthetic hydrocarbon fuel, derived from renewable energy and captured carbon dioxide from flue gas and/or ambient air, can close its carbon cycle and is an important approach to sustainable energy. In this study, the thermodynamic performance of a coelectrolysis process for producing hydrogen and carbon monoxide from water and captured CO2 is investigated, based on current carbon capture and high-temperature electrolysis technologies. The exergy analysis is useful because it can reveal the energy losses due to irreversibilities and indicate possibilities for improvement of a process. Fuel synthesis systems integrated with or separated from different carbon capture technologies were evaluated and the analysis results have indicated that compared to the energy/exergy consumed by electrolysis, the energy/exergy penalty from CO2 capture is insignificant. The thermodynamic efficiency of fuel synthesis could be increased by developing fuel generation technologies with lower electricity requirements, especially when using solar and nuclear energy.

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