e-甲烷化与螺旋催化剂：优化热管理和长期稳定性†

IF 4.6 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

RSC Advances Pub Date : 2025-03-07 DOI:10.1039/D4RA08236B

Ryo Watanabe, Kohki Nishide, Hiroyasu Suganuma, Priyanka Verma, Hiroshi Akama and Choji Fukuhara

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引用次数: 0

摘要

本研究探索了焦耳加热反应场的发展，利用电驱动的螺旋形催化剂进行高效的二氧化碳甲烷化。在非绝缘反应器中，红外热成像显示了沿螺旋结构快速而均匀的升温。当输入功率为10w时，CO2转化率达到80%，而即使在5w时也能保持75%的转化率。催化剂的扭转角对通过增强旋流优化传热和CO2转化起着至关重要的作用。长期稳定性测试表明，在350°C下，5w下的甲烷产量持续超过50小时，突出了催化剂的耐用性和能源效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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

This study explores the development of a Joule-heated reaction field utilizing an electrically driven spiral-shaped catalyst for efficient CO₂ methanation. Infrared thermal imaging in an uninsulated reactor reveals a rapid and uniform temperature rise along the spiral structure. With a 10 W input, CO₂ 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 CO₂ 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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来源期刊

RSC Advances chemical sciences-

CiteScore

7.50

自引率

2.60%

发文量

3116

审稿时长

1.6 months

期刊介绍： An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.