72 research outputs found
Multihydroxy-functional oligophenylene oxide
Multihydroxy-functional oligophenylene oxide obtainable by reacting a compound containing hydroxyaryl comprising at least three hydroxyaryl groups according to formula (I), wherein R = an aromatic, aliphatic or cycloaliphatic group containing 1-50 carbon atoms, R, R = H or an aromatic, aliphatic or cycloaliphatic group containing 1-50 carbon atoms, or two of the R, R or R groups together constitute a ring structure containing 4-50 carbon atoms with a polyphenylene oxide in the presence of a catalyst complex comprising a transition metal and and amine
Functional oligomers, telechelics, graft- and star-shaped poly(2,6-dimethyl-1,4-phenylene ether)s prepared by redistribution
No abstract
Photoinduced Interactions in a Pyrene-Calix[4]arene-Perylene Bisimide Dye System: Probing Ground-State Conformations with Excited-State Dynamics of Charge Separation and Recombination
Long-Lived Triplet State Charge Separation in Novel Piperidine-Bridged Donor−Acceptor Systems
Developing a feasible process for 2G-lignin conversion into biofuels and chemicals
Lignin is one of the major components of lignocellulosic biomass, constituting 15-30 % of the weight and approximately 40 % of the energy content depending on the source. Currently the lignin produced in 2G bio-ethanol plants is mainly used for one-site energy production. At Eindhoven University of Technology (Inorganic Material Chemistry group)Â a method was explored to depolymerize lignin in super critical ethanol with cheap non-noble catalysts to produce a mixture of monomeric aromatics. The product might be applied directly as a bio marine fuel, or as a source for chemical building blocks (Resins), octane boosters or biofuels when blended with gasolines. The primary goal for pilot activities is to produce Lignin Crude Oil from lignin with a viscosity spec < 1000 cSt at 40C, on a ton scale and to collect information for designing a demo plant with the aim of having an economically viable process. As a secondary step the Lignin Crude Oil is fractionated and products tested for several applications
An integrated lignin biorefinery: Scaling-up lignin depolymerization technology for biofuels and chemicals
A method for obtaining a stable lignin: polar organic solvent composition via mild solvolytic modifications
The present invention relates to a process the production of a crude liquid lignin oil (CLO), said process comprises the steps of providing a lignin-rich solid feedstock and subjecting the lignin-rich solid feedstock to a treatment in a polar organic solvent in the absence of an effective amount of added reaction promoter, such as a heterogeneous and/or homogeneous catalyst and/or hydrogen, and providing a lignin composition, said treatment comprises a step of contacting said lignin-rich solid feedstock with a polar organic solvent under operating conditions of an operating temperature up to 210 °C, an operating pressure lower than 50 bar and a residence time up to 240 minutes, wherein the ratio (w/v) of lignin (in lignin- rich feedstock) to polar organic solvent ranges between 1:1.5 and 1:15, or between 1:2 and 1:10 or between 1:2 and 1:5
Platinum(II), palladium(II) and rhodium(I) complexes of <i>o</i>-, <i>m</i>- and <i>p</i>-Ph<sub>2</sub>P(C<sub>6</sub>H<sub>4</sub>PO<sub>3</sub>Et<sub>2</sub>). PtCl<sub>2</sub>-SnCl<sub>2</sub> hydroformylation catalysts with phosphonated triarylphosphines
Developing a feasible process for 2G-lignin conversion into biofuels and chemicals
Lignin is one of the major components of lignocellulosic biomass, constituting 15-30 % of the weight and approximately 40 % of the energy content depending on the source. Currently the lignin produced in 2G bio-ethanol plants is mainly used for one-site energy production. At Eindhoven University of Technology (Inorganic Material Chemistry group)Â a method was explored to depolymerize lignin in super critical ethanol with cheap non-noble catalysts to produce a mixture of monomeric aromatics. The product might be applied directly as a bio marine fuel, or as a source for chemical building blocks (Resins), octane boosters or biofuels when blended with gasolines. The primary goal for pilot activities is to produce Lignin Crude Oil from lignin with a viscosity spec < 1000 cSt at 40C, on a ton scale and to collect information for designing a demo plant with the aim of having an economically viable process. As a secondary step the Lignin Crude Oil is fractionated and products tested for several applications
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