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Distributed electrified heating for efficient hydrogen production
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
Harbin Institute of Technology, China.
KTH Royal Institute of Technology, Sweden.
Vise andre og tillknytning
2024 (engelsk)Inngår i: Nature Communications, E-ISSN 2041-1723, Vol. 15, artikkel-id 3868Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This study introduces a distributed electrified heating approach that is able to innovate chemical engineering involving endothermic reactions. It enables rapid and uniform heating of gaseous reactants, facilitating efficient conversion and high product selectivity at specific equilibrium. Demonstrated in catalyst-free CH4 pyrolysis, this approach achieves stable production of H2 (530 g h−1 L reactor−1) and carbon nanotube/fibers through 100% conversion of high-throughput CH4 at 1150 °C, surpassing the results obtained from many complex metal catalysts and high-temperature technologies. Additionally, in catalytic CH4 dry reforming, the distributed electrified heating using metallic monolith with unmodified Ni/MgO catalyst washcoat showcased excellent CH4 and CO2 conversion rates, and syngas production capacity. This innovative heating approach eliminates the need for elongated reactor tubes and external furnaces, promising an energy-concentrated and ultra-compact reactor design significantly smaller than traditional industrial systems, marking a significant advance towards more sustainable and efficient chemical engineering society.

sted, utgiver, år, opplag, sider
Nature Research , 2024. Vol. 15, artikkel-id 3868
Emneord [en]
carbon; carbon nanotube; hydrogen; methane; bioreactor; catalyst; chemical reaction; heating; hydrogen; innovation; temperature effect; adsorption; Article; catalysis; catalyst; chemical engineering; controlled study; desorption; distributed electrifed heating; energy resource; gas analysis; high temperature procedures; industrial production; process model; pyrolysis; reaction temperature; reactor design; scanning electron microscopy; transmission electron microscopy; article; furnace; heating; high temperature
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Identifikatorer
URN: urn:nbn:se:ri:diva-73290DOI: 10.1038/s41467-024-47534-8Scopus ID: 2-s2.0-85192354703OAI: oai:DiVA.org:ri-73290DiVA, id: diva2:1860049
Forskningsfinansiär
Vinnova, 2021-03735Swedish Energy Agency, 51418-1
Merknad

This study was financial supported by VINNOVA- the Swedish innovation fund Agency (2021-03735, W.Y.), and Energimyndigheten - the Swedish Energy Agency (51418-1, W.Y.). One of the authors, Hanmin Yang would also like to acknowledge the financial support from the Chinese Scholarship Council (CSC) and Stiftelsen Energitekniskt Centrum i Piteå, Sweden. Open access funding provided by KTH Royal Institute of Technology.

Tilgjengelig fra: 2024-05-23 Laget: 2024-05-23 Sist oppdatert: 2024-05-27bibliografisk kontrollert

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