Hydrogen production from bioethanol fuel mixtures via exhaust heat recovery in diesel engines: a promising route towards more energy efficient road vehicles

Musbahu Umar; Hadi Nozari; Marcela Menezes; Martin Herreros; Chia-Sheng Lau; Athanasios Tsolakis

doi:10.1016/j.ijhydene.2021.04.146

Hydrogen production from bioethanol fuel mixtures via exhaust heat recovery in diesel engines: a promising route towards more energy efficient road vehicles

Musbahu Umar, Hadi Nozari, Marcela Menezes, Martin Herreros, Chia-Sheng Lau, Athanasios Tsolakis

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

Bioethanol has been considered a potential alternative to the conventional fossil fuels in transportation sector as well as a hydrogen carrier. This study proposes a thermochemical recovery pathway to extend the use of bioethanol in compression ignition engines through catalytic exhaust gas reforming of ethanol-biodiesel-diesel blends into hydrogen. The aim is to improve the heat recovery of the engine exhaust gas and increase the on-board production of hydrogen which can potentially partially replace the diesel fuel in the engine. Results indicate that the effectiveness of the reforming process mainly depends on the blend composition, reforming temperature, and oxygen to carbon ratio (O/C). It is deduced that ethanol content in the fuel blend has a key role in sustaining catalyst activity and hydrogen production. Overall, the study highlights the positive impact and practicality of recovering exhaust heat using the ethanol-biodiesel-diesel blends. This implementation can result in noticeable improvements in emission reduction of diesel powertrains once the reformate is fed back into the engine.

Original language	English
Pages (from-to)	23603-23614
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	46
Issue number	46
Early online date	18 May 2021
DOIs	https://doi.org/10.1016/j.ijhydene.2021.04.146
Publication status	Published - 6 Jul 2021

Bibliographical note

Funding Information:
In Memoriam Musbahu Umar (1975–2013). ESPRC is acknowledged for supporting this work with the project “ FACE - Novel Integrated Fuel Reformer-Aftertreatment System for Clean and Efficient Road Vehicles ” (ESPRC: ref. EP/P03117X/1 ). Johnson Matthey is acknowledged for providing the reforming catalysts as part of the CREO project.

Publisher Copyright:
© 2021 Hydrogen Energy Publications LLC

Keywords

Ethanol blends
Exhaust heat recovery
Fuel reforming
Hydrogen
Thermochemical recovery

ASJC Scopus subject areas

Condensed Matter Physics
Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

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

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10.1016/j.ijhydene.2021.04.146Licence: None: All rights reserved

UmarM2021HydrogenAccepted author manuscript, 903 KBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

Cite this

Umar, M., Nozari, H., Menezes, M., Herreros, M., Lau, C-S., & Tsolakis, A. (2021). Hydrogen production from bioethanol fuel mixtures via exhaust heat recovery in diesel engines: a promising route towards more energy efficient road vehicles. International Journal of Hydrogen Energy, 46(46), 23603-23614. Advance online publication. https://doi.org/10.1016/j.ijhydene.2021.04.146

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abstract = "Bioethanol has been considered a potential alternative to the conventional fossil fuels in transportation sector as well as a hydrogen carrier. This study proposes a thermochemical recovery pathway to extend the use of bioethanol in compression ignition engines through catalytic exhaust gas reforming of ethanol-biodiesel-diesel blends into hydrogen. The aim is to improve the heat recovery of the engine exhaust gas and increase the on-board production of hydrogen which can potentially partially replace the diesel fuel in the engine. Results indicate that the effectiveness of the reforming process mainly depends on the blend composition, reforming temperature, and oxygen to carbon ratio (O/C). It is deduced that ethanol content in the fuel blend has a key role in sustaining catalyst activity and hydrogen production. Overall, the study highlights the positive impact and practicality of recovering exhaust heat using the ethanol-biodiesel-diesel blends. This implementation can result in noticeable improvements in emission reduction of diesel powertrains once the reformate is fed back into the engine.",

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Hydrogen production from bioethanol fuel mixtures via exhaust heat recovery in diesel engines: a promising route towards more energy efficient road vehicles. / Umar, Musbahu; Nozari, Hadi; Menezes, Marcela et al.
In: International Journal of Hydrogen Energy, Vol. 46, No. 46, 06.07.2021, p. 23603-23614.

Research output: Contribution to journal › Article › peer-review

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AU - Umar, Musbahu

AU - Nozari, Hadi

AU - Menezes, Marcela

AU - Herreros, Martin

AU - Lau, Chia-Sheng

AU - Tsolakis, Athanasios

N1 - Funding Information: In Memoriam Musbahu Umar (1975–2013). ESPRC is acknowledged for supporting this work with the project “ FACE - Novel Integrated Fuel Reformer-Aftertreatment System for Clean and Efficient Road Vehicles ” (ESPRC: ref. EP/P03117X/1 ). Johnson Matthey is acknowledged for providing the reforming catalysts as part of the CREO project. Publisher Copyright: © 2021 Hydrogen Energy Publications LLC

PY - 2021/7/6

Y1 - 2021/7/6

N2 - Bioethanol has been considered a potential alternative to the conventional fossil fuels in transportation sector as well as a hydrogen carrier. This study proposes a thermochemical recovery pathway to extend the use of bioethanol in compression ignition engines through catalytic exhaust gas reforming of ethanol-biodiesel-diesel blends into hydrogen. The aim is to improve the heat recovery of the engine exhaust gas and increase the on-board production of hydrogen which can potentially partially replace the diesel fuel in the engine. Results indicate that the effectiveness of the reforming process mainly depends on the blend composition, reforming temperature, and oxygen to carbon ratio (O/C). It is deduced that ethanol content in the fuel blend has a key role in sustaining catalyst activity and hydrogen production. Overall, the study highlights the positive impact and practicality of recovering exhaust heat using the ethanol-biodiesel-diesel blends. This implementation can result in noticeable improvements in emission reduction of diesel powertrains once the reformate is fed back into the engine.

AB - Bioethanol has been considered a potential alternative to the conventional fossil fuels in transportation sector as well as a hydrogen carrier. This study proposes a thermochemical recovery pathway to extend the use of bioethanol in compression ignition engines through catalytic exhaust gas reforming of ethanol-biodiesel-diesel blends into hydrogen. The aim is to improve the heat recovery of the engine exhaust gas and increase the on-board production of hydrogen which can potentially partially replace the diesel fuel in the engine. Results indicate that the effectiveness of the reforming process mainly depends on the blend composition, reforming temperature, and oxygen to carbon ratio (O/C). It is deduced that ethanol content in the fuel blend has a key role in sustaining catalyst activity and hydrogen production. Overall, the study highlights the positive impact and practicality of recovering exhaust heat using the ethanol-biodiesel-diesel blends. This implementation can result in noticeable improvements in emission reduction of diesel powertrains once the reformate is fed back into the engine.

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Hydrogen production from bioethanol fuel mixtures via exhaust heat recovery in diesel engines: a promising route towards more energy efficient road vehicles

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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