Recent Progress in the Selective Hydrodeoxygenation of 5‐Hydroxymethylfurfural to 2,5‐Dimethylfuran With Metal‐Containing Catalysts

• Published in: ChemCatChem 2024-10, Vol.16 (20), p.n/a
• Main Authors: Gautam, Rahul, Li, Hu, Saravanamurugan, Shunmugavel
• Format: Article
• Language: English
• Subjects: DMF; HMF; Hydrodeoxygenation; Hydrogen; Hydrogen atmosphere; Hydroxymethylfurfural; Liquid fuels; Metal(s); Miscibility; Octane number; Polyethylene terephthalate; Solvents; Xylene
• ISSN: 1867-3880; 1867-3899
• DOI: 10.1002/cctc.202400691

Liquid fuel, such as 2,5‐dimethylfuran (DMF), from biomass, is an efficient, potential alternative to fossil‐based fuels due to its exceptional properties, including lower volatility, a remarkable octane number, heightened energy density, and immiscibility with water. DMF can be the starting substrate for producing bio‐based p‐xylene through the Diels‐Alder reaction with ethylene to produce biobased polyethylene terephthalate (PET). This review, thus, discusses the catalytic role of various precious and non‐precious metals on different supports, such as carbon, metal‐oxide, zeolite, and hydrotalcite, for the production of DMF via catalytic hydrodeoxygenation (HDO) of 5‐hydroxymethylfurfural (HMF) based on the previously reported literature. Various characteristic properties of the employed catalytic materials, such as particle size, metal‐support and substrate interaction, surface area, porosity, and acidic and basic sites, are delineated, playing a crucial role in the HDO of HMF to DMF. The influence of various reaction parameters, such as hydrogen atmosphere, solvents‐ including hydrogen donor solvents‐ and temperature are also discussed. This review provides an overview of the hydrodeoxygenation of 5‐hydroxymethylfurfural (HMF) to 2,5‐dimethyl furan (DMF) with various metal (Co, Ni, Cu, Ru, and Pd)‐containing catalysts, discussing the influence of the role of metal‐support interaction on the selective cleavage of aliphatic C−O rather than ring C−O of HMF, resulting in producing product (DMF) with excellent selectivity.