-Methanation with a spiral catalyst: optimized thermal management and long-term stability.

RSC Adv

Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University 3-5-1 Johoku, Chuo-ku Hamamatsu Shizuoka 432-8561 Japan

Published: March 2025

This study explores the development of a Joule-heated reaction field utilizing an electrically driven spiral-shaped catalyst for efficient CO methanation. Infrared thermal imaging in an uninsulated reactor reveals a rapid and uniform temperature rise along the spiral structure. With a 10 W input, CO conversion reached 80%, while 75% conversion was maintained even at 5 W. The catalyst's twist angle played a crucial role in optimizing heat transfer and CO conversion by enhancing swirl flow. Long-term stability tests at 5 W demonstrated sustained methane production over 50 hours at 350 °C, highlighting the catalyst's durability and energy efficiency.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11886956PMC
http://dx.doi.org/10.1039/d4ra08236bDOI Listing

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