Enhancing the performance of catalysts in turbulent premixed fuel-lean hydrogen/air combustion
Enhancing the performance of catalysts in turbulent premixed fuel-lean hydrogen/air combustion
Catalytic-aided combustion is a proven technique for burning highly lean and ultra-lean mixtures of hydrogen and air. However, the noble catalyst required for combustion is naturally scarce and therefore expensive. In this study, we focus on a numerical investigation to determine the best way of coating a platinum catalyst inside a catalytic hydrogen reactor. We study various planar and non-planar reactors and find that the reactor with a combination of half and full cylinders is the most effective in H2 conversion. Compared to an equivalent catalytic planar reactor, the non-planar configuration increases the H2 conversion by 30.7 %. The results show that enhancing mass and heat convection can significantly increase the H2 conversion. Furthermore, in a non-planar reactor, surfaces with an enhanced mass and heat transfer can achieve up to 50 % catalyst savings when coated with a catalyst, while still maintaining a conversion rate of 2 kg/s per unit of catalytically-coated surface area.
Mondal, Md Nur Alam
0728665d-dc18-48e9-b475-f1ed15c34609
Karimi, Nader
620646d6-27c9-4e1e-948f-f23e4a1e773a
Jackson, S. David
c585bf6c-f1df-44eb-b971-b500014ab31d
Paul, Manosh C.
fbb523c5-ff1d-4609-8327-0175d3c9e5b3
5 January 2025
Mondal, Md Nur Alam
0728665d-dc18-48e9-b475-f1ed15c34609
Karimi, Nader
620646d6-27c9-4e1e-948f-f23e4a1e773a
Jackson, S. David
c585bf6c-f1df-44eb-b971-b500014ab31d
Paul, Manosh C.
fbb523c5-ff1d-4609-8327-0175d3c9e5b3
Mondal, Md Nur Alam, Karimi, Nader, Jackson, S. David and Paul, Manosh C.
(2025)
Enhancing the performance of catalysts in turbulent premixed fuel-lean hydrogen/air combustion.
Chemical Engineering Science, 301, [120747].
(doi:10.1016/j.ces.2024.120747).
Abstract
Catalytic-aided combustion is a proven technique for burning highly lean and ultra-lean mixtures of hydrogen and air. However, the noble catalyst required for combustion is naturally scarce and therefore expensive. In this study, we focus on a numerical investigation to determine the best way of coating a platinum catalyst inside a catalytic hydrogen reactor. We study various planar and non-planar reactors and find that the reactor with a combination of half and full cylinders is the most effective in H2 conversion. Compared to an equivalent catalytic planar reactor, the non-planar configuration increases the H2 conversion by 30.7 %. The results show that enhancing mass and heat convection can significantly increase the H2 conversion. Furthermore, in a non-planar reactor, surfaces with an enhanced mass and heat transfer can achieve up to 50 % catalyst savings when coated with a catalyst, while still maintaining a conversion rate of 2 kg/s per unit of catalytically-coated surface area.
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Accepted/In Press date: 16 September 2024
e-pub ahead of print date: 17 September 2024
Published date: 5 January 2025
Identifiers
Local EPrints ID: 510011
URI: http://eprints.soton.ac.uk/id/eprint/510011
ISSN: 0009-2509
PURE UUID: 8062b89a-a541-4645-bcfe-f31ab69ce07c
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Date deposited: 13 Mar 2026 17:39
Last modified: 14 Mar 2026 03:30
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Author:
Md Nur Alam Mondal
Author:
Nader Karimi
Author:
S. David Jackson
Author:
Manosh C. Paul
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