使用气溶胶金属有机框架衍生混合催化剂进行(CO2 + CO)加氢与甲醇分解联合反应

IF 4.2 2区 工程技术 Q2 ENGINEERING, CHEMICAL Advanced Powder Technology Pub Date : 2024-10-21 DOI:10.1016/j.apt.2024.104696
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引用次数: 0

摘要

本研究介绍了一种新型的单锅反应系统,该系统可在将温室气体高效转化为甲醇的同时,将聚对苯二甲酸乙二醇酯(PET)加工成对苯二甲酸二甲酯(DMT)和乙二醇(EG)。我们的方法包括利用气溶胶辅助合成法开发金属有机框架 (MOF) 衍生的混合材料。这些催化剂包括各种载体上的 Cu/ZnO 活性相,针对一氧化碳 (CO) 和二氧化碳 (CO2) 的氢化进行了优化。通过将 PET 甲醇分解与(CO2 + CO)加氢过程相结合,我们显著提高了转化率,超过了其单独值的 2.5 倍。这种协同方法有效地解决了塑料废弃物和温室气体排放带来的挑战。在优化条件下,DMT 的时空产率达到 5.6 mmol gcat-1h-1,选择性达到 92%。这些结果凸显了 MOF 衍生催化剂材料在促进复杂化学转化方面的有效性,并极大地促进了环境的可持续发展。这种双功能系统为利用塑料废弃物和温室气体提供了一种实用的解决方案,标志着向循环经济迈出了重要一步。
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Combined (CO2 + CO) hydrogenation with methanolysis using aerosol metal-organic framework-derived hybrid catalysts
This study introduces a novel one-pot reaction system that efficiently converts greenhouse gases into methanol while simultaneously processing polyethylene terephthalate (PET) into dimethyl terephthalate (DMT) and ethylene glycol (EG). Our approach involves the development of hybrid materials derived from metal-organic frameworks (MOFs) using an aerosol-assisted synthesis method. These catalysts, which include a Cu/ZnO active phase on various supports, are optimized for the hydrogenation of both carbon monoxide (CO) and carbon dioxide (CO2). By integrating PET methanolysis with the (CO2 + CO) hydrogenation process, we achieved a significant enhancement in conversion ratios, exceeding 2.5 times their individual values. This synergistic approach effectively addresses the challenges posed by both plastic waste and greenhouse gas emissions. An impressive space–time yield of 5.6 mmol  gcat−1h−1 and selectivity of 92 % for DMT production were achievable under optimized conditions. These results highlight the effectiveness of MOF-derived catalyst materials in facilitating complex chemical transformations and contribute significantly to environmental sustainability. This dual-function system offers a practical solution for the utilization of plastic waste and greenhouse gases, marking an important step toward a circular economy.
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来源期刊
Advanced Powder Technology
Advanced Powder Technology 工程技术-工程:化工
CiteScore
9.50
自引率
7.70%
发文量
424
审稿时长
55 days
期刊介绍: The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)
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