Zeolite and zeotype-catalysed transformations of biofuranic compounds

Li, Hu; Yang, Song; Riisager, Anders; Pandey, Ashok; Sangwan, Rajender S.; Saravanamurugan, Shunmugavel; Luque, Rafael

doi:10.1039/c6gc02415g

Cited by 147 publications

(95 citation statements)

References 326 publications

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“…It is known that zeolites are sensitive to aqueous solutions under thermal conditions. [9] To examine the performancea nd stability of different zeolitic materialsi nt he alkylation step, 2-MF and formalin (37 %f ormaldehyde in water) were initially chosen as substrates.T able 1s hows catalytic results of both commercial and modified zeolites for the alkylation reaction. In the case of H-form zeolites (entries 1-5), both selectivitya nd yield of bis(5-methylfuran-2-yl)methane (BMFM)w ere found to partially correlate with the molar ratio of Lewis acid (LA) to Brønsted acid (BA) sites, wherein H-beta (12.5) with am oderate LA/BAr atio of 0.45 afforded as ignificant yield of 39 %B MFM with 59 %s electivity ( Figure 1).…”

Section: Catalytic Alkylation Of 2-mf With Formalinmentioning

confidence: 99%

Catalytic Tandem Reaction for the Production of Jet and Diesel Fuel Range Alkanes

Gui

Yang

et al. 2018

Energy Tech

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Jet and diesel fuels are typically composed of C9‐C14 and C12‐C20 hydrocarbons, respectively, but the carbon‐chain length of sugar‐derived aldehydes and furanic compounds is no longer than C6. Here, a cascade catalytic process involving alkylation and hydrodeoxygenation (HDO) of 2‐methylfuran (2‐MF) with different aldehydes is conducted to directly produce long‐chain alkanes with exclusive carbon number of C11‐C17 in overall yields of 50–84 %. Preliminary investigations on the alkylation of 2‐MF and formalin show that the relative density of Lewis and Brønsted acidic sites of zeolitic materials remarkably affect their catalytic activity and selectivity. Sn‐beta(12.5) with pronounced Lewis acidity (including the acid density and strength) exhibits higher catalytic performance in the alkylation than other zeolites, producing long‐chain oxygenates in 58–92 % yields. Even in aqueous solution, the Sn‐beta(12.5) catalyst can be reused for at least six reaction cycles with almost constant reactivity. More importantly, the co‐addition of Hf(OTf)4 with Pd/C greatly promotes C−O bond cleavage of the furan‐ring during the HDO process under mild reaction conditions, producing long‐chain alkanes in high yields of 84–94 %.

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Section: Catalytic Alkylation Of 2-mf With Formalinmentioning

confidence: 99%

Catalytic Tandem Reaction for the Production of Jet and Diesel Fuel Range Alkanes

Gui

Yang

et al. 2018

Energy Tech

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“…As lignocellulosicb iomass has ac omplex structure and made-up of different polymers (cellulose, hemicellulose and lignin), its direct useh as many complications.T herefore, different sugars (hexoseo rp entose) and their derived compounds such as furans, isolated or produced from biomass through biological or chemical conversion, are generally used as platform raw materialsi nb iorefinery to achieve an efficient production of differenti ndustrial applicable chemicals and biofuels (Scheme 1). [3][4][5][6][7][8][9][10][11][12][13] In 2004, U.S. Department of Energy (DOE) listed twelves ugar-based building blocks which can be used for the production of various value-added chemicals or materials. [14] Catalytic transformation of biomass-derived compounds to different platform chemicals andl iquid fueli saprominentw ay to reduce the global dependence on fossil resources.…”

Section: Introductionmentioning

confidence: 99%

Metal Catalysts for the Efficient Transformation of Biomass‐derived HMF and Furfural to Value Added Chemicals

2018

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Catalytic transformation of biomass‐derived compounds to different platform chemicals and liquid fuel is a prominent way to reduce the global dependence on fossil resources. In past few decades, biomass‐derived furans such as 2‐furfuraldehyde (furfural) and 5‐hydroxymethyl‐2‐furfural (HMF) have received outstanding attention because of their wide applications in the production of various industrially important value‐added chemicals and fuel components. Various catalytic systems and methodologies have been extensively explored for the transformation of these furans to a wide range of products including open ring diketones, ketoacids, alcohols and long chain alkanes. This Review is aimed to provide an extensive overview of the recent developments of several high‐performing heterogeneous catalysts for the catalytic upgradation of the key biomass‐derived furans (furfural and HMF) to value‐added chemicals. Moreover, the role of these catalysts in the catalytic transformations including hydrogenation, decarbonylation, oxidation, hydrogenolysis and ring opening reactions, and the mechanistic pathways are also highlighted in this Review.

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“…Many preeminent reviews regarding the transformation of bio‐sugars have already emerged, but they are mainly focused on the conversion pathways toward various biomass‐derived platform chemicals, or catalysts on the basis of acid type . Nevertheless, increasing attention has been recently paid to control of the carbon chain length during upgrading of biomass‐derived molecules to either biofuels (e.g., C 7 –C 20 ) with desired fuel properties or small fine chemicals (e.g., C 1 –C 6 ) .…”

Section: Introductionmentioning

confidence: 99%

Catalytic Upgrading of Biomass‐Derived Sugars with Acidic Nanoporous Materials: Structural Role in Carbon‐Chain Length Variation

Saravanamurugan

et al. 2018

ChemSusChem

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Shifting from petroleum‐based resources to inedible biomass for the production of valuable chemicals and fuels is one of the significant aspects in sustainable chemistry for realizing the sustainable development of our society. Various renowned biobased platform molecules, such as 5‐hydroxymethylfurfural, furfural, levulinic acid, and lactic acid, are successfully accessible from the transformation of biobased sugars. To achieve the specific reaction routes, heterogeneous nanoporous acidic materials have served as promising catalysts for the conversion of bio‐sugars in the past decade. This Review summarizes advances in various nanoporous acidic materials for bio‐sugar conversion, in which the number of carbon atoms is variable and controllable with the assistance of the switchable structure of nanoporous materials. The major focus of this Review is on possible reaction pathways/mechanisms and the relationships between catalyst structure and catalytic performance. Moreover, representative examples of catalytic upgrading of biobased platform molecules to biochemicals and fuels through selective C−C cleavage and coupling strategies over nanoporous acidic materials are also discussed.

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Zeolite and zeotype-catalysed transformations of biofuranic compounds

Abstract: Lignocellulosic biomass is an important renewable resource that could substitute fossil feedstocks as a raw material for high value chemicals production.

Cited by 147 publications

References 326 publications

Catalytic Tandem Reaction for the Production of Jet and Diesel Fuel Range Alkanes

Catalytic Tandem Reaction for the Production of Jet and Diesel Fuel Range Alkanes

Metal Catalysts for the Efficient Transformation of Biomass‐derived HMF and Furfural to Value Added Chemicals

Catalytic Upgrading of Biomass‐Derived Sugars with Acidic Nanoporous Materials: Structural Role in Carbon‐Chain Length Variation

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