生物基呋喃催化热解耦合CO2还原制取芳烃和合成气
摘要：摘要针对生物基呋喃单独芳构化过程中通常伴随着脱氢反应,并且考虑到CO2单独还原成CO需要消耗大量H2,提出一种生物基呋喃催化热解耦合CO2还原定向制取碳负性芳烃和合成气新工艺。通过构筑分子筛负载的复合金属催化剂来同步实现2-甲基呋喃（2-MF）的高效芳构化和CO2的活化。研究表明,HZSM-5负载Mo-Ni可以显著提高CO2的转化率以及气体产物中合成气的选择性,分别从 -4.56%（CO2生成速率大于其转化速率）和46.78%大幅提高至24.68%和72.28%,这归因于双金属的配位结构引入了更多氧空位,同时通过引入路易斯酸位点有效提高了催化剂的芳构化能力。研究结果可为生物质催化热解新工艺发展和催化剂设计提供理论指导。
Abstract:：In view of the fact that the individual aromatization process of bio-based furan is usually accompanied by dehydrogenation reaction, and considering that the individual reduction of CO2 to CO requires a lot of hydrogen, this paper proposes a new process for the targeted production of carbon-negative aromatics and syngas by catalytic pyrolysis of bio-based furan coupled with CO2 reduction. Efficient aromatization of 2-methylfuran (2-MF) and activation of CO2 were simultaneously achieved by constructing composite metal catalysts supported on molecular sieves. It is found that Mo-Ni supported on HZSM-5 can significantly improve the conversion of CO2 and the selectivity of syngas in gas products, from -4.56% (CO2 generation rate is higher than its conversion rate) and 46.78% to 24.68% and 72.28%, respectively, which is attributed to the introduction of more oxygen vacancies by the coordination structure of bimetals. Meanwhile, the catalyst can enhance its aromatization ability by introducing Lewis acid sites. The research findings provide theoretical guidance for developing new technology and catalyst design for biomass catalytic pyrolysis.
中文标题：生物基呋喃催化热解耦合CO2还原制取芳烃和合成气
英文标题：Catalytic Pyrolysis of Bio-Based Furan Coupled with CO2 Reduction to Produce Aromatics and Syngas
发表时间：2024-04-24
作者：
陈玉, 夏声鹏, 赵坤, 郑安庆, 赵增立
作者简介：
陈 玉（1999-）,男,硕士研究生,主要从事生物质催化热解耦合CO<sub>2</sub>还原相关高效催化剂的设计研究。郑安庆（1984-）,男,博士,研究员,博士生导师,主要从事农林废弃物、生活垃圾和污泥等固废的热化学转化和高值化利用研究。
关键词：生物基呋喃,CO2,分子筛,催化热解,芳烃,
Key words：bio-based furan,carbon dioxide,molecular sieve,catalytic pyrolysis,aromatics,
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