Proceedings of the 1st International Symposium on African Sustainable Energy Solutions (AfrSusEnS 2024)

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Overview of Economic Limits for Converting Waste CO2 to Fuel in CTL Process

Authors
Diane Hildebrandt1, *, Joshua Gorimbo2, Yali Yao2
1Chemical & Biochemical Engineering, Rutgers, The State University of New Jersey, 98, Brett Road, Piscataway, NJ, 08854-8058, USA
2Institute for Catalysis and Energy Solution (ICES), College of Science, Engineering and Technology, University of South Africa (UNISA), FL, Johannesburg, 1710, South Africa
*Corresponding author. Email: diane.hildebrandt@rutgers.edu
Corresponding Author
Diane Hildebrandt
Available Online 22 July 2025.
DOI
10.2991/978-94-6463-797-7_4How to use a DOI?
Keywords
Carbon Efficiency; Decarbonization of CTL; CO₂ Taxation; Sustainable Energy Systems; Carbon Circularity; Renewable Electricity for Hydrogen Production
Abstract

The integration of hydrogen (H₂) into the Coal-to-Liquids (CTL) process offers a promising strategy to convert carbon dioxide (CO₂) emissions into valuable synthetic crude (syncrude), thereby reducing the overall carbon footprint of CTL operations. This study presents a high level economic analysis to determine the maximum cost of H2 that would make its use in the CTL process financially attractive. The findings demonstrate that access to low-cost electricity for H2 production can not only boost syncrude yields but also substantially lower CO₂ emissions—especially in regions with abundant renewable energy resources.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 1st International Symposium on African Sustainable Energy Solutions (AfrSusEnS 2024)
Series
Advances in Engineering Research
Publication Date
22 July 2025
ISBN
978-94-6463-797-7
ISSN
2352-5401
DOI
10.2991/978-94-6463-797-7_4How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Diane Hildebrandt
AU  - Joshua Gorimbo
AU  - Yali Yao
PY  - 2025
DA  - 2025/07/22
TI  - Overview of Economic Limits for Converting Waste CO₂ to Fuel in CTL Process
BT  - Proceedings of the 1st International Symposium on African Sustainable Energy Solutions (AfrSusEnS 2024)
PB  - Atlantis Press
SP  - 20
EP  - 26
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-797-7_4
DO  - 10.2991/978-94-6463-797-7_4
ID  - Hildebrandt2025
ER  -