Searched for: author:"Smit, A.T."
(1 - 18 of 18)
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Duval, A. (author), Layrac, G. (author), van Zomeren, A. (author), Smit, A.T. (author), Pollet, E. (author), Averous, L. (author)
Two organosolv lignins extracted during pilot runs of the Fabiola process were analyzed, fractionated and chemically modified with ethylene carbonate (EC) to produce building blocks suitable for polymer synthesis. Isolation of low dispersity fractions relied on the partial solubility of the lignins in organic solvents. Lignins solubility was...
article 2021
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de Haro, J.C. (author), Allegretti, C. (author), Smit, A.T. (author), Turri, S. (author), D'Arrigo, P. (author), Griffini, G. (author)
New biobased polyurethane (PU) coatings with high lignin content were developed and characterized in this work. These materials were based on a ?,?-diisocyanate monomer (1,4-bis(4-isocyanato-2-methoxyphenoxy)butane, VA-NCO) obtained from lignin-derived vanillic acid and its further cross-linking reaction with three different nonchemically...
article 2019
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de Wild, P.J. (author), Dijkstra, J.W. (author), Smit, A.T. (author), Gevers, N. (author), Naus, R.W.M. (author), Arts, G.T.A. (author), Feijen, J. (author), Storm, I.M. (author)
In het E3 BioFRAME project wordt het gebruik van de producten van organosolv fractionering van biomassa onderzocht voor vier product toepassingen (autobanden, asfalt, brandstoffen en verpakkingen). Hiervoor zijn succesvolle bench-schaal experimenten gedaan voor de fractionering van plantgewassen tarwestro, beuk- en dennenhout. Opschaalde...
report 2018
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van Hees, A.G.M. (author), Huijgen, W.J.J. (author), van Hal, J.W. (author), Smit, A.T. (author)
public lecture 2017
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Huijgen, W.J.J. (author), van Hal, J.W. (author), Smit, A.T. (author), Damen, K.J. (author)
Fabiola, fractionation of biomass using low-temperature acetone
public lecture 2017
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Huijgen, W.J.J. (author), van Hal, J.W. (author), Smit, A.T. (author), Damen, K.J. (author)
public lecture 2017
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Huijgen, W.J.J. (author), Smit, A.T. (author)
Enzymatic cellulose hydrolysis of pretreated wheat straw pulp to glucose is enhanced when the hydrolysis is performed in the presence of an aqueous extract of the feedstock. A relative digestibility increase of around 10% is observed for organosolv, alkaline and dilute acid pretreated wheat straw pulp (enzyme dose 2.5 FPU/g pulp). At lower...
article 2017
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Huijgen, W.J.J. (author), Smit, A.T. (author)
Large-scale biorefineries converting lignocellulosic biomass into chemicals, fuels and energy require a cost-effective pretreatment process that effectively fractionates the three main lignocellulose constituents from a wide range of feedstocks. A novel mild organosolv process has been developed using acetone as solvent.
article 2017
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Huijgen, W.J.J. (author), Grisel, R.J.H. (author), van Hal, J.W. (author), Smit, A.T. (author)
public lecture 2015
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Huijgen, W.J.J. (author), van der Linden, R. (author), van Hal, J.W. (author), Smit, A.T. (author)
public lecture 2015
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Huijgen, W.J.J. (author), Smit, A.T. (author), Op de Beeck, B. (author), Jacobs, P.A. (author), Sels, B.F. (author), Ennaert, T. (author), Vanneste, J. (author), Vanhulsel, A. (author)
Reductive hydrolysis of cellulose to hexitols is a promising technology to valorize cellulose streams. Several catalytic systems have been reported to successfully process commercially available purified cellulose powders according to this technology. Ruthenium-loaded USY zeolites in the presence of minute amounts of HCl previously showed very...
article 2015
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Huijgen, W.J.J. (author), Grisel, R.J.H. (author), Smit, A.T. (author)
public lecture 2014
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Grisel, R.J.H. (author), Smit, A.T. (author), Zakzeski, J. (author), Weckhuysen, B.M. (author)
The solid acid-catalyzed hydrolysis of cellulose was studied under elevated temperatures and autogenous pressures using in situ ATR-IR spectroscopy. Standards of cellulose and pure reaction products, which include glucose, fructose, hydroxymethylfurfural (HMF), levulinic acid (LA), formic acid, and other compounds, were measured in water under...
article 2012
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Reith, J.H. (author), Huijgen, W.J.J. (author), Wildschut, J. (author), Smit, A.T. (author)
Wheat straw fractionation by ethanol organosolv was studied as pretreatment for enzymatic cellulose hydrolysis. A parametric study focusing on temperature, reaction time, acid catalyst dose, solvent concentration, and particle size was performed to determine their influence on delignification, xylan hydrolysis, and enzymatic cellulose...
article 2012
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den Uil, H. (author), de Wild, P.J. (author), Huijgen, W.J.J. (author), Smit, A.T. (author)
Wheat straw was fractionated using a three-step biorefining approach: (1) aqueous pretreatment for hemicellulose prehydrolysis into sugars, (2) organosolv delignification, and (3) enzymatic cellulose hydrolysis into glucose. Prehydrolysis was applied to avoid degradation of hemicellulose sugars during organosolv delignification. Maximum xylose...
article 2012
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den Uil, H. (author), Reith, J.H. (author), Huijgen, W.J.J. (author), Smit, A.T. (author)
article 2011
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den Uil, H. (author), Reith, J.H. (author), Huijgen, W.J.J. (author), Smit, A.T. (author)
BACKGROUND: Ethanol-based organosolv fractionation of lignocellulosic biomass is an effective pretreatment technology for enzymatic cellulose hydrolysis to produce sugars and lignin within a biorefinery. This study focuses on the catalytic effect of H2SO4, HCl, andMgCl2 on organosolv pretreatment of willow wood and wheat straw. RESULTS: The use...
article 2011
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den Uil, H. (author), de Wild, P.J. (author), Reith, J.H. (author), Huijgen, W.J.J. (author), Smit, A.T. (author), Energieonderzoek Centrum Nederland (author)
The development of cost-effective lignocellulose based biorefineries requires optimum valorisation of all main biomass constituents, i.e. both sugar polymers and lignin. Most pretreatment technologies, developed to increase the enzymatic hydrolysis of the cellulose fraction for the fermentative production of second generation biofuels or...
conference paper 2011
Searched for: author:"Smit, A.T."
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