Small pore zeolite catalysts for furfural synthesis from xylose and switchgrass in a γ-valerolactone/water solvent

Bruce, Spencer M.; Zong, Zhi‐Min; Chatzidimitriou, Anargyros; Avci, Leyla E.; Bond, Jesse Q.; Carreón, Moisés A.; Wettstein, Stephanie G.

doi:10.1016/j.molcata.2016.02.025

Cited by 66 publications

(45 citation statements)

References 55 publications

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“…27) and Sn-MMT 28 as well as SAPO-34. 29 But hydrothermal stability of zeolites still needs to be improved. Besides, commercial ion exchange resins (Amberlyst-70, Amberlyst-15 and Naon) were also investigated in detail.…”

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confidence: 99%

Production of furfural from xylose and corn stover catalyzed by a novel porous carbon solid acid in γ-valerolactone

Zhu

et al. 2017

RSC Adv.

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A resorcinol-formaldehyde resin carbon (RFC) catalyst with a well-developed, ordered, mesoporous framework was prepared using a soft template method at room temperature. The carbon was sulfonated in water using sulfanilic acid under mild atmospheric conditions. The sulfonated RFC (S-RFC) was characterized by N 2 adsorption-desorption, elemental analysis, TEM, XPS, and FT-IR. It was determined that S-RFC is an efficient solid acid catalyst for furfural production from xylose and corn stover in gvalerolactone (GVL). The effects of reaction time, reaction temperature, catalyst loading, substrate dosage and water concentration were investigated. 80% furfural yield and 100% xylose conversion were obtained from xylose at 170 C in 15 min with 0.5 g catalyst. Comparatively, 68.6% furfural yield was achieved from corn stover at 200 C in 100 min when using 0.6 g catalyst. Since there was no discernable decrease in furfural yield after multiple conversions utilizing the same catalyst, the recyclability of the catalyst is considered good.

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confidence: 99%

Production of furfural from xylose and corn stover catalyzed by a novel porous carbon solid acid in γ-valerolactone

Zhu

et al. 2017

RSC Adv.

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“…This clearly indicates the capping of MNP has increased the stability of the MNP compared to bare MNP under acidic condition used for regeneration. Such high stability of MNP after capping might be due to the resistance to the permeability of Fe(III) as starch and casein capping acts as support material and prevents leaching of Fe(III) ions . Furthermore, casein and starch support also plays an important role in avoiding air void that decreases adsorption efficiency of nano‐adsorbents .…”

Section: Resultsmentioning

confidence: 99%

Biomolecule functionalized magnetite nanoparticles efficiently adsorb and remove heavy metals from contaminated water

Somu

Kannan

Paul

2019

J of Chemical Tech & Biotech

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BACKGROUND Magnetic nanoparticles (MNPs) have recently gained importance for the treatment of water contaminated with heavy metal. However, conventional chemical synthesis of MNPs involves production of hazardous by‐products. In the present study, starch (MNPST) and casein (MNPCS) functionalized MNPs were prepared via green synthesis and compared efficiency with bare MNPs. RESULTS Here, we prepared MNP, MNPST, and MNPCS with average sizes of 7.1, 9.0, and 9.7 nm, respectively. We conducted an adsorption study under optimized conditions such as temperature, pH, etc., and observed that the removal of lead(II) (Pb(II)) and chromium(VI) (Cr(IV)) follows the pseudo‐second‐order kinetic model for all MNPs. The experimental data fits better with Langmuir isotherm, and the maximal adsorption capacity (Qm) of MNPST was highest with 120.48 mg g−1 for Pb(II) and 99.0 mg g−1 for Cr(VI) compared to MNPCS [101.11 mg g−1 for Pb(II) and 87.81 mg g−1 for Cr(VI)] and MNP [74.07 mg g−1 for Pb(II) and 68.96 mg g−1 for Cr(VI)]. Furthermore, we also demonstrated that better regeneration capacity of MNPST was only 8.0% reduction of its removal efficiency, followed by MNPCS (12.1%) and MNP (14.8%). CONCLUSION Therefore, our findings revealed that starch capped magnetite nano‐adsorbent could be used for the efficient removal of heavy metal from water with excellent regeneration efficiency. © 2019 Society of Chemical Industry

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“…Lewis acids can be used to isomerize xylose to xylulose (Choudhary et al 2012;Bruce et al 2016). Lewis acids, mostly metal chlorides, accelerate furfural formation by contributing metal cations and Cl -ions (Marcotullio and De 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Side reactions are the main cause of low furfural yield (Choudhary et al 2012;Bruce et al 2016). Though the catalyst enhances the reaction rate, the rate of side reactions is also enhanced (Jing and Lu 2007).…”

Section: Introductionmentioning

confidence: 99%

Efficient Production of Furfural from Corncob by an Integrated Mineral-Organic-Lewis Acid Catalytic Process

Zhang

et al. 2017

BioResources

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An M-O-L acid (mineral acid, organic acid, and Lewis acid)-catalyzed integrated process for furfural production from corncob was proposed to improve corncob conversion and furfural selectivity. First, the co-catalysts of sulfuric acid and acetic acid were investigated for their impact on furfural production. Sulfuric acid as a pretreatment catalyst was mixed with corncob before the experiment. Acetic acid, which is a byproduct of hemicellulose hydrolysis, was fed together with steam. The results showed that the cooperation of sulfuric acid and acetic acid decreased the total acid consumption dramatically. FeCl3·6H2O was also investigated as a cocatalyst in an effort to enhance the conversion of xylose to furfural and decrease furfural degradation. The integrated catalytic process achieved the highest furfural yield of 68.04% through the use of M-O-L acid under a reaction temperature of 180°C, 3v% acetic acid, 4.0 wt.% sulfuric acid of 0.6 mL/g liquid to solid ratio, and 5 g FeCl3·6H2O per 100 g of biomass.

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Small pore zeolite catalysts for furfural synthesis from xylose and switchgrass in a γ-valerolactone/water solvent

Cited by 66 publications

References 55 publications

Production of furfural from xylose and corn stover catalyzed by a novel porous carbon solid acid in γ-valerolactone

Production of furfural from xylose and corn stover catalyzed by a novel porous carbon solid acid in γ-valerolactone

Biomolecule functionalized magnetite nanoparticles efficiently adsorb and remove heavy metals from contaminated water

Efficient Production of Furfural from Corncob by an Integrated Mineral-Organic-Lewis Acid Catalytic Process

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