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Direct lignin depolymerization process from sulfur-free black liquors
(Elsevier, 2019-09-03)
Agricultural residues (olive tree pruning and almond shell) were subjected to different delignification treatments (organosolv and soda) and the obtained liquors were treated in a high-pressure reactor at 300 °C for 80 min ...
Fermentable sugars recovery from grape stalks for bioethanol production
(Elsevier, 2013-07-02)
[EN]Three different processes were investigated for the recovery of fermentable sugars from grape stalks:
autohydrolysis at 121 ºC before and after a pre-washing step and acid hydrolysis (2% H2SO4 w/w) after a
pre-washing ...
Gas reactions under intrapore condensation regime within tailored metal–organic framework catalysts
(Springer Nature, 2019-05-06)
[EN] roduction of 1-butene, a major monomer in polymer industry, is dominated by homogeneous protocols via ethylene dimerization. Homogeneous catalysts can achieve high selectivity but require large amounts of activators ...
Generation of nanocomposites based on (PMMA-b-PCL)-grafted Fe2O3 nanoparticles and PS-b-PCL block copolymer
(Elsevier, 2014-07-14)
The aim of this work is to obtain a good dispersion of Fe2O3 magnetic nanoparticles into a PS-b-PCL diblock copolymer. For this purpose nanoparticles have been modified in their surface by grafting a PMMA-b-PCL block ...
Corncob arabinoxylan for new materials
(Elsevier, 2014-02)
[EN]tCorncob agricultural waste was used as a source of arabinoxylan for preparation of films. Three ara-binoxylan samples were prepared: crude extract (CCAX), purified by a washing step, and purified bybleaching CCAX. ...
Generation of nanocomposites based on polystyrene grafted CdSe nanoparticles by grafting through and block copolymer
(Springer Nature, 2013-02-23)
Continuing with our previous work, in which CdSe nanoparticles were functionalized with polystyrene (PS) brushes (CdSe-PS) by grafting through method, nanocomposites were prepared by adding them to a poly (styrene-b-buta ...
High-Performance Magnetic Activated Carbon from Solid Waste from Lignin Conversion Processes. 2. Their Use as NiMo Catalyst Supports for Lignin Conversion
(ACS Publications, 2017-10-27)
[EN] Lignin conversion processes produce carbon-rich residues
[Oregui-Bengoechea et al. J. Anal. Appl. Pyrolysis 2015, 113, 713−722;
Zakzeski et al. Chem. Rev. 2010, 110, 3552−3599] that can be converted into
valuable ...
Combined Mesoscale/Experimental Study of Selective Placement of Magnetic Nanoparticles in Diblock Copolymer Films via Solvent Vapor Annealing
(ACS Publications, 2016-03-16)
We present a combined theoretical/experimental study to investigate the effect of selective solvent vapor annealing treatment on the obtainment of highly ordered morphologies of symmetric poly(styrene-b-methyl methacrylate) ...
Liquefaction of Kraft Lignin at Atmospheric Pressure
(Tech Science Press, 2019)
[EN]Kraft lignin was liquefied using polyethylene glycol #400 (PEG) and
glycerol (G) in a weight ratio of 80/20 (w/w) and sulphuric acid (SA) as catalyst
under atmospheric pressure at 160ºC. The three independent variables: ...