Efficient and sustainable production of <i>p</i>-xylene from biomass-derived 2,5-dimethylfuran and ethylene using alkali metal doped phosphotungstic acid catalysts

Wu, Chuandong; Zhao, Yao; Li, Jifan; Liu, Chunling; Dong, Wen‐Sheng

doi:10.1039/d2se00863g

Cited by 5 publications

(1 citation statement)

References 49 publications

(113 reference statements)

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“…Finally, PX is prepared from acid-catalyzed reaction between DMF and ethylene. The past few years have witnessed rapid developments of efficient catalysts for the key step, namely, conversion of DMF into PX. − Zeolite and mesoporous solid acids exhibit promising catalytic performances, and PX selectivity over 90% could be obtained over several solid acid catalysts. − However, as the predecessor of DMF, HMF is notoriously unstable and readily converts into various side products, such as humins, sharply increasing the cost . In addition, the multiple reactions and the following separations make the whole process complicated and energy-intensive, limiting its industrial application.…”

Section: Introductionmentioning

confidence: 99%

2,5-Hexanedione: The Bridge for p-Xylene Production from Lignocellulosic Biomass via a Brand New Two-Step Route

Chu

Feng

et al. 2022

ACS Sustainable Chem. Eng.

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Green and efficient upgrading of cellulose into pxylene (PX) is critical to utilizing zymotic biomass wastes and complies with the "recycling economy". Despite the tremendous efforts devoted by researchers, a bio-based PX production route that is compact with both technical and economic feasibility is extremely desirable but still remains a significant challenge. Here, we put forward a brand new two-step PX production route via 2,5hexanedione (HDO), efficiently simplifying the whole process and cutting down the cost. We thoroughly investigated the effect of reaction conditions and took insight into the corresponding reaction mechanism in each step. The highest yields of 64 and 85% were achieved for HDO/2,5-dimethylfuran (DMF) and PX during the first and second steps, respectively. Furan ring hydrogenation and condensation into an oligomer comprise the main side reactions during the first step. In comparison with the most promising production route for bio-based PX at present (cellulose → glucose → fructose → 5-hydroxymethyl furfural (HMF) → DMF → PX), the as-proposed two-step route may exhibit tremendous advantages: streamlining with much less operating units and laying solid foundation for industrialized production by dexterously avoiding production and separation of HMF.

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Section: Introductionmentioning

confidence: 99%

2,5-Hexanedione: The Bridge for p-Xylene Production from Lignocellulosic Biomass via a Brand New Two-Step Route

Chu

Feng

et al. 2022

ACS Sustainable Chem. Eng.

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Highly efficient catalytic conversion of biomass-derived 2,5-dimethylfuran into renewable p-xylene over zirconium phosphate catalysts

et al. 2023

Applied Catalysis A: General

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Zirconium-tin phosphate as an efficient catalyst for renewable p-xylene synthesis from biobased 2,5-dimethylfuran and ethylene

Wu,

Chen,

et al. 2024

Applied Catalysis A: General

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Efficient and sustainable production of p-xylene from biomass-derived 2,5-dimethylfuran and ethylene using alkali metal doped phosphotungstic acid catalysts

Abstract: A series of alkali metals (K, Rb, and Cs) doped phosphotungstic acid (H3PW12O40, HPW) catalysts were prepared by an ion-exchanged method. These catalysts were characterized by various techniques and applied...

Cited by 5 publications

References 49 publications

2,5-Hexanedione: The Bridge for p-Xylene Production from Lignocellulosic Biomass via a Brand New Two-Step Route

2,5-Hexanedione: The Bridge for p-Xylene Production from Lignocellulosic Biomass via a Brand New Two-Step Route

Highly efficient catalytic conversion of biomass-derived 2,5-dimethylfuran into renewable p-xylene over zirconium phosphate catalysts

Zirconium-tin phosphate as an efficient catalyst for renewable p-xylene synthesis from biobased 2,5-dimethylfuran and ethylene

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