Support Induced Control of Surface Composition in Cu?Ni/TiO2 Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans [electronic resource]

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Ngôn ngữ: eng

Ký hiệu phân loại: 666.9 Masonry adhesives

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017

Mô tả vật lý: Size: p. 4070-4082 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 263229

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5-(hydroxymethyl)furfural (HMF) and furfural (FF) have been confirmed as valuable biomass-derived fuel precursors suitable for catalytic hydrodeoxygenation (HDO) to produce high octane fuel additives such dimethyl furan (DMF) and methyl furan (MF), respectively. In order to realize economically viable production of DMF and MF from biomass, catalytic processes with high yields, low catalyst costs, and process simplicity are needed. In this work, we demonstrate simultaneous co-processing of HMF and FF over Cu-Ni/TiO
2
catalysts, achieving 87.5% yield of DMF from HMF and 88.5% yield of MF from FF in a one pot reaction. The Cu-Ni/TiO
2
catalyst also exhibited improved stability and regeneration compared to Cu/TiO
2
and Cu/Al
2
O
3
catalysts for FF HDO, exhibiting a ~7% loss in FF conversion over 4 sequential recycles, compared to a ~50% loss in FF coversion for Cu/Al
2
O
3
and a ~30% loss in coversion for Cu/TiO
2
. Characterization of the Cu-Ni/TiO
2
catalyst by X-ray Photoelectron Spectroscopy, Scanning Transmission Electron Microscopy, and H
2
-Temperature Programmed Reduction and comparison to monometallic Cu and Ni on Al
2
O
3
and TiO
2
and bimetallic Cu-Ni/Al
2
O
3
catalysts suggest that the unique reactivity and stability of Cu-Ni/TiO
2
derives from support-induced metal segregation in which Cu is selectively enriched at the catalyst surface, while Ni is enriched at the TiO
2
interface. Our findings demonstrate that Cu-Ni/TiO
2
catalysts promise to be a catalyst system capable of integrating directly with a combined HMF and FF product stream from biomass processing to realize lower cost production of liquid fuels from biomass.

1. 09 biomass fuels
2. Bimetallic catalysts
3. Furfural
4. Hydrodeoxygenation
5. Hydroxymethyl furfural

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Support Induced Control of Surface Composition in Cu?Ni/TiO<sub>2</sub> Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans [electronic resource]