Efficient conversion of xylan and rice husk to furfural over immobilized imidazolium acidic ionic liquids

Liu, Panli; Shi, Shengbin; Gao, Lijing; Xiao, Guomin

doi:10.1007/s11144-022-02172-3

Cited by 10 publications

(5 citation statements)

References 53 publications

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“…Therefore, saturated sodium chloride solution is generally used for the aqueous system in the biphasic systems [48–50] . 180 °C is considered as the suitable temperature for the preparation of furfural from xylose [20,51–53] . Therefore, the best catalyst was selected in a biphasic solvent consisting of toluene and H 2 O (NaCl) at 180 °C.…”

Section: Resultsmentioning

confidence: 99%

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Dehydration of Xylose and Xylan to Furfural using P‐Zr‐SBA‐15 Catalyst in Aqueous or Biphasic System

et al. 2023

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A series of bifunctional P‐Zr‐SBA‐15 catalysts with Lewis acid and Brønsted acid sites were prepared by modifying mesoporous material SBA‐15 with Zr4+ and phosphate group, which were used in the conversion of xylose and xylan into furfural. The structure and acidic characteristics of the catalyst were analyzed by X‐ray diffraction, Fourier transform infrared spectroscopy, N2 adsorption desorption, scanning/transmission electron microscopy, X‐ray photoelectron spectroscopy, thermogravimetric analysis, NH3 temperature programmed desorption, and pyridine adsorption infrared spectroscopy. The effects of different process parameters on the catalytic performance of the catalyst were studied. when using the xylose and xylan as substrates, the furfural yield were 80.3 % and 68.8 % under the optimal conditions in the H2O(NaCl)/toluene (3/3 mL) biphasic solvent system, respectively, and 52.5 % furfural yield was obtained using xylose as substrate in aqueous system. In addition, the catalyst has good thermal stability and easy recovery in the recycling experiment.

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Section: Resultsmentioning

confidence: 99%

“…[48][49][50] 180 °C is considered as the suitable temperature for the preparation of furfural from xylose. [20,[51][52][53] Therefore, the best catalyst was selected in a biphasic solvent consisting of toluene and H 2 O (NaCl) at 180 °C.…”

Section: Selection Of Appropriate Content Of Zirconiummentioning

confidence: 99%

Dehydration of Xylose and Xylan to Furfural using P‐Zr‐SBA‐15 Catalyst in Aqueous or Biphasic System

et al. 2023

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“…The rice husk was taken from the Huai′an, Anhui Province, China. The cellulose, hemicelluloses and lignin in rice husk were determined as 31.45 %, 15.73 %, and 35.28 %, respectively, according to our previous work [64] …”

Section: Methodsmentioning

confidence: 99%

“…The cellulose, hemicelluloses and lignin in rice husk were determined as 31.45 %, 15.73 %, and 35.28 %, respectively, according to our previous work. [64] A Nicolet 5700 Fourier transform infrared (FT-IR) spectrometer, a Bruker Ascend 600 MHz NMR spectrometer, an Agilent 1260-6224 high-resolution mass spectrometer (HRMS), a UV-2450 UV-vis spectrometer (Shimazu, Japan), a NETZSCH TG209F3 thermogravimetric analyzer (TGA), and an FEI Inspect F50 scanning electron microscope (SEM, voltage at 10 kV) were used here. Molecular weights of PILs were measured on Water 1515 system at room temperature using water as the eluent.…”

Section: Chemcatchemmentioning

confidence: 99%

Sulphonic Acid‐Functionalized Polymeric Ionic Liquids Catalyzed Conversion of Carbohydrates into Levulinic Acid in One‐Pot Reaction

Shi

Liu

et al. 2023

ChemCatChem

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Sulphonic acid‐functionalized polymeric ionic liquids (PILs) were synthesized and applied into catalytic conversion of cellulose into levulinic acid (LA). The structure, thermal stability, and Hammett acidity function (H0) of PILs were characterized and all were more thermostable than those of small‐molecular ionic liquids (IL). At the optimum reaction conditions, the LA yield was maximized to 79.4 % by catalyst [Pim]CH3SO3. More importantly, catalyst [Pim]CH3SO3 performed well in other biomass conversion, such as cellobiose, starch and rice husk. The product LA can be easily extracted by methyl isobutyl ketone from the reaction mixture. The PILs with high catalytic activity were easily recycled with an LA yield up to 68.9 % even after five cycles. These sufficient PILs will offer new approaches for transforming biomass to platform chemicals.

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“…In addition, the reported ImmHSO 4 -IL catalyst exhibited a higher catalytic activity than those prepared using other immobilized imidazolium acid ionic liquid catalysts (ImmCH 3 SO 3 -IL and ImmH 2 PO 4 -IL), and achieved the highest furfural yield of 74.6% from rice husk. 81…”

Section: One-step and Two-step Approaches For Furfural Productionmentioning

confidence: 99%

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

Bao,

Du,

Liu

et al. 2024

Green Chem.

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Efficient conversion of xylan and rice husk to furfural over immobilized imidazolium acidic ionic liquids

Cited by 10 publications

References 53 publications

Dehydration of Xylose and Xylan to Furfural using P‐Zr‐SBA‐15 Catalyst in Aqueous or Biphasic System

Dehydration of Xylose and Xylan to Furfural using P‐Zr‐SBA‐15 Catalyst in Aqueous or Biphasic System

Sulphonic Acid‐Functionalized Polymeric Ionic Liquids Catalyzed Conversion of Carbohydrates into Levulinic Acid in One‐Pot Reaction

Furfural production from lignocellulosic biomass: one-step and two-step strategies and techno-economic evaluation

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