A new hydrogenation-coupling approach for supra-equilibrium conversion in a water–gas shift reaction: Simultaneous hydrogen generation and chemical storage

Michael Ho Kei Lee; Hang Yin; Wasim Ullah Khan; Frank L.Y. Lam; Yongsik Ok; Matthew J. Watson; Shusheng Pang; Alex C.K. Yip

doi:10.1016/j.ijhydene.2023.02.019

A new hydrogenation-coupling approach for supra-equilibrium conversion in a water–gas shift reaction: Simultaneous hydrogen generation and chemical storage

Michael Ho Kei Lee, Hang Yin, Wasim Ullah Khan, Frank L.Y. Lam, Yongsik Ok, Matthew J. Watson, Shusheng Pang, Alex C.K. Yip

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

Abstract

This work reports a practical system of hydrogenation-coupled water–gas shift reaction (HC-WGSR) for simultaneous hydrogen production and storage. The performance of the HC-WGSR system was predicted through thermodynamic simulation. The proof-of-concept tandem water–gas shift and propene hydrogenation strategy was successfully demonstrated using a bifunctional catalyst. The hydrogen produced from the WGSR was successfully stored in propane simultaneously, and the overall CO conversion of nearly 100% overcame the equilibrium limitation of the WGSR over a wide range of space velocities (3000 - 6000 h⁻¹) at 200 ^°C and 1 bar. This study demonstrated that the in situ removal/storage of H₂ using the hydrogenation-coupling approach is promising even in a CO₂-rich environment (20% CO₂). The new approach shall see a great opportunity in using organic hydrogen carriers, e.g., benzene, toluene, N-ethylcarbazole, to expand the industrial applications, underpinning the global supply chain for hydrogen energy.

Original language	English
Pages (from-to)	18567-18571
Number of pages	5
Journal	International Journal of Hydrogen Energy
Volume	48
Issue number	49
DOIs	https://doi.org/10.1016/j.ijhydene.2023.02.019
Publication status	Published - 2023 Jun 8

Bibliographical note

Funding Information:
The authors acknowledge financial support from the Ministry of Business, Innovation & Employment in New Zealand under the MBIE Endeavour “Smart Ideas” grant (UOCX1905), and the Faculty Research Establishment Grant (Grant No. 410085_4224) funded by the Victoria University of Wellington.

Publisher Copyright:
© 2023 Hydrogen Energy Publications LLC

Keywords

Bifunctional catalyst
Chemical storage
Hydrogen generation
Supra-equilibrium
Water–gas shift reaction

ASJC Scopus subject areas

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

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2023.02.019

Cite this

Lee, M. H. K., Yin, H., Khan, W. U., Lam, F. L. Y., Ok, Y., Watson, M. J., Pang, S., & Yip, A. C. K. (2023). A new hydrogenation-coupling approach for supra-equilibrium conversion in a water–gas shift reaction: Simultaneous hydrogen generation and chemical storage. International Journal of Hydrogen Energy, 48(49), 18567-18571. https://doi.org/10.1016/j.ijhydene.2023.02.019

A new hydrogenation-coupling approach for supra-equilibrium conversion in a water–gas shift reaction: Simultaneous hydrogen generation and chemical storage. / Lee, Michael Ho Kei; Yin, Hang; Khan, Wasim Ullah et al.
In: International Journal of Hydrogen Energy, Vol. 48, No. 49, 08.06.2023, p. 18567-18571.

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

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abstract = "This work reports a practical system of hydrogenation-coupled water–gas shift reaction (HC-WGSR) for simultaneous hydrogen production and storage. The performance of the HC-WGSR system was predicted through thermodynamic simulation. The proof-of-concept tandem water–gas shift and propene hydrogenation strategy was successfully demonstrated using a bifunctional catalyst. The hydrogen produced from the WGSR was successfully stored in propane simultaneously, and the overall CO conversion of nearly 100% overcame the equilibrium limitation of the WGSR over a wide range of space velocities (3000 - 6000 h−1) at 200 °C and 1 bar. This study demonstrated that the in situ removal/storage of H2 using the hydrogenation-coupling approach is promising even in a CO2-rich environment (20% CO2). The new approach shall see a great opportunity in using organic hydrogen carriers, e.g., benzene, toluene, N-ethylcarbazole, to expand the industrial applications, underpinning the global supply chain for hydrogen energy.",

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AB - This work reports a practical system of hydrogenation-coupled water–gas shift reaction (HC-WGSR) for simultaneous hydrogen production and storage. The performance of the HC-WGSR system was predicted through thermodynamic simulation. The proof-of-concept tandem water–gas shift and propene hydrogenation strategy was successfully demonstrated using a bifunctional catalyst. The hydrogen produced from the WGSR was successfully stored in propane simultaneously, and the overall CO conversion of nearly 100% overcame the equilibrium limitation of the WGSR over a wide range of space velocities (3000 - 6000 h−1) at 200 °C and 1 bar. This study demonstrated that the in situ removal/storage of H2 using the hydrogenation-coupling approach is promising even in a CO2-rich environment (20% CO2). The new approach shall see a great opportunity in using organic hydrogen carriers, e.g., benzene, toluene, N-ethylcarbazole, to expand the industrial applications, underpinning the global supply chain for hydrogen energy.

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A new hydrogenation-coupling approach for supra-equilibrium conversion in a water–gas shift reaction: Simultaneous hydrogen generation and chemical storage

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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