Reduction of the Hydrogen Content of CO2 Methanation Product Gas via Catalytic Ethanol Dehydration–Hydrogenation

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-01-18 DOI:10.1007/s10562-024-04924-3

Shimpei Norioka, Tomoki Uchiyama, Hirofumi Ohtsuka, Yoshiharu Uchimoto

{"title":"Reduction of the Hydrogen Content of CO2 Methanation Product Gas via Catalytic Ethanol Dehydration–Hydrogenation","authors":"Shimpei Norioka, Tomoki Uchiyama, Hirofumi Ohtsuka, Yoshiharu Uchimoto","doi":"10.1007/s10562-024-04924-3","DOIUrl":null,"url":null,"abstract":"<div><p>Methanation, the process of producing methane from CO<sub>2</sub> and hydrogen via renewable energy sources, has attracted considerable attention. However, reducing the hydrogen content in the product methane gas remains a challenge for using this product gas as a city gas. To overcome this challenge, this study investigated the ethanol dehydration–hydrogenation reaction (C<sub>2</sub>H<sub>5</sub>OH + H<sub>2</sub> → C<sub>2</sub>H<sub>6</sub> + H<sub>2</sub>O) using ethanol, which is widely used as a biofuel, and hydrogen in the product methane gas. The reactions were performed under practical conditions using Pd and solid acid catalysts. It was confirmed that ethanol could be converted to ethane in high yields while the hydrogen content is reduced in the methane-rich gas. This study demonstrates the practical applicability of the ethanol dehydration-hydrogenation reaction to the methanation process to generate city gas.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 2","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-024-04924-3","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Methanation, the process of producing methane from CO₂ and hydrogen via renewable energy sources, has attracted considerable attention. However, reducing the hydrogen content in the product methane gas remains a challenge for using this product gas as a city gas. To overcome this challenge, this study investigated the ethanol dehydration–hydrogenation reaction (C₂H₅OH + H₂ → C₂H₆ + H₂O) using ethanol, which is widely used as a biofuel, and hydrogen in the product methane gas. The reactions were performed under practical conditions using Pd and solid acid catalysts. It was confirmed that ethanol could be converted to ethane in high yields while the hydrogen content is reduced in the methane-rich gas. This study demonstrates the practical applicability of the ethanol dehydration-hydrogenation reaction to the methanation process to generate city gas.

Graphical Abstract

查看原文本刊更多论文

催化乙醇脱水加氢法降低CO2甲烷化产物气体中的氢含量

甲烷化，即利用可再生能源将二氧化碳和氢气转化为甲烷的过程，已经引起了相当大的关注。然而，降低产品甲烷气体中的氢含量仍然是将该产品气体用作城市气体的一个挑战。为了克服这一挑战，本研究以广泛用作生物燃料的乙醇和产物甲烷中的氢为原料，研究了乙醇脱水-加氢反应（C2H5OH + H2→C2H6 + H2O）。以钯和固体酸为催化剂，在实际条件下进行了反应。结果表明，在富甲烷气体中，乙醇可以高产地转化为乙烷，同时氢含量降低。本研究验证了乙醇脱水加氢反应在甲烷化工艺生产城市煤气中的实际适用性。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.