Thermal catalytic reforming for hydrogen production with zero CO2 emission

• 成果类型: Article
• 署名作者: Peng, Mi; Ge, Yuzhen; Gao, Rui; Yang, Jie; Li, Aowen; Xie, Zhiheng; Yu, Qiaolin; Zhang, Jie; Asakura, Hiroyuki; Zhang, Hui; Liu, Zhi; Zhang, Qi; Deng, Jin; Zhou, Jihan; Zhou, Wu; Hutchings, Graham J.; Ma, Ding
• 署名单位: Peking University; Inner Mongolia University; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Kindai University (Kinki University); Chinese Academy of Sciences; ShanghaiTech University; Cardiff University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-11971
• DOI: 10.1126/science.adt0682
• 发表日期: 2025-02-14
• 页码: 769-775
• 关键词: total-energy calculations; low-temperature; thermodynamic analysis; renewable hydrogen; h-2 production; au catalysts; alpha-moc; c-c; ethanol; water

摘要

Carbon-neutral hydrogen production is of key importance for the chemical industry of the future. We demonstrate a new thermal catalytic route for the partial reforming of ethanol into hydrogen and acetic acid with near-zero carbon dioxide emissions. This reaction is enabled by a catalyst containing a high density of atomic Pt-1 and Ir-1 species supported on a reactive alpha-molybdenum carbide substrate, achieving a hydrogen production rate of 331.3 millimoles of hydrogen per gram catalyst per hour and an acetic acid selectivity of 84.5% at 270 degrees C, and is therefore more energy-efficient compared with standard reforming. Techno-economic analysis of partial ethanol reforming demonstrates the potential profitability for operation at an industrial scale, presenting the opportunity to produce hydrogen and acetic acid with a substantially reduced carbon dioxide footprint.