A columnar regular-porous stainless steel reaction support with high superficial area for hydrogen production

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Zheng, Tianqing, Zhou, Wei, Chu, Xuyang, Lian, Yunsong, Huang, Xiang, Hui, Kwan San ORCID: https://orcid.org/0000-0001-7089-7587 and Hui, Kwun Nam (2022) A columnar regular-porous stainless steel reaction support with high superficial area for hydrogen production. International Journal of Hydrogen Energy, 47 (18). pp. 10204-10216. ISSN 0360-3199

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Abstract

To improve hydrogen production (HP) performance of regular-porous structure (RPS), a columnar RPS with small specific surface area and high superficial area is developed. A numerical simulation model of regular-porous stainless steel structure (RPSSS) is established. Subsequently, heat transfer performance, pressure loss, temperature, methanol concentration, H2 concentration distributions and HP performance of the columnar RPSSS with small specific surface area and high superficial area and the body-centered cubic RPSSS with high specific surface area and small superficial area are compared. Then, temperature, methanol concentration, H2 concentration distributions and HP performance of axial and longitudinal size-enlarged columnar RPSSSs are studied. The results show that compared to the body-centered cubic RPSSS, the columnar RPSSS has higher methanol conversion, larger H2 flow rate and higher CO selectivity. Especially in the condition of 300 °C wall temperature and 12 mL/h methanol-water mixture injection rate (MWMIR), the methanol conversion, H2 flow rate and CO selectivity of the columnar RPSSS are increased by 12.3%, 9.24% and 30%, respectively, indicating that the superficial area of RPSSS is more important for its HP performance compared to its specific surface area. Compared to the longitudinal size-enlarged columnar RPSSS, the axial size-enlarged columnar RPSSS has higher methanol conversion, larger H2 flow rate and higher CO selectivity. This research work provides a new method for the optimization of hydrogen production reaction support (HPRS).

Item Type: Article
Additional Information: Funding Information: Thanks to China Scholarship Council (CSC) for financial support (No. 202006310047), Fundamental Research Funds for the Central Universities (No. 20720200068) and China's National Science Fund for Outstanding Youth (No. 51922092).
Uncontrolled Keywords: hydrogen production,regular-porous structure,specific surface area,superficial area,condensed matter physics,energy engineering and power technology,fuel technology,renewable energy, sustainability and the environment,sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/3100/3104
Faculty \ School: University of East Anglia Research Groups/Centres > Theme - ClimateUEA
Faculty of Science > School of Engineering (former - to 2024)
UEA Research Groups: Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV)
Faculty of Science > Research Groups > Energy Materials Laboratory
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Depositing User: LivePure Connector
Date Deposited: 09 May 2024 11:30
Last Modified: 25 Sep 2024 17:47
URI: https://ueaeprints.uea.ac.uk/id/eprint/95110
DOI: 10.1016/j.ijhydene.2022.01.117

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