Patent classifications
C08H6/00
Lignin to liquid fuels and polyols using biomass-derived solvents
A process of producing a distillate fuel from lignin includes: preparing a biomass-derived lignin solvent; dissolving the lignin in the biomass-derived solvent; and separating undissolved lignin and mineral matter to produce a syncrude. In certain embodiments, the process further includes subjecting the syncrude to a hydrotreatment/hydrogenation process to produce a distillate fuel. A process to improve direct lignin liquefaction includes: using a non-hydrogenated lipid in a direct lignin liquefaction process to facilitate lignin depolymerization. A process for using a biomass-derived feedstock as a hydrogen donor includes: providing a biomass-derived feedstock; modifying the feedstock to improve its usefulness as a hydrogen donor; and conducting a transfer hydrogenation process using the modified feedstock as a hydrogen donor.
NOVOLAC PHENOLIC RESINS, PROCESS OF SYNTHESIS OF SAID PHENOLIC RESINS AND USE THEREOF
The present invention relates to a novolac-type phenolic resin synthesis process in which there is the addition of lignin, to a novolac-type phenolic resin comprising lignin, and to the use of said phenolic resin.
ANTI-CORROSION COATING COMPOSITION
Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.
METHOD TO VALORIZE 2G BIOETHANOL WASTE STREAMS
An integrated approach for utilizing waste products of 2G bio-refineries to fractionate the lignin of high purity. The present invention also provides a method of recycling of two waste products (2-G ethanol residue as the substrate (LRBR) and fusel oil/synthetic fusel oil (SFO) as one of the solvent) of the biorefineries in a beneficial manner to fractionate the lignin of high purity. The present method of separating high purity lignin comprises fractioning extractive-free lignin rich residue with a solvent, wherein the solvent is a mixture of SFO/Fusel oil and Formic acid. An optimized ratio of waste fusel oil and formic acid gave more than >85% yields of high purity lignin.
Humic Acid Type Adsorption material as Well as Preparation Method and Application thereof
The invention discloses a humic acid type adsorption material as well as a preparation method and application thereof. The humic acid type adsorption material is prepared by taking carboxymethyl cellulose or salts thereof, humate and montmorillonite as raw materials and adding a monomer, a cross-linking agent and an initiator through aqueous solution polymerization. The synthesized porous material is great in specific surface area, can quickly get close to water molecules in water to form hydrogen bonds, and finally achieves the purpose of removing organic dye pollutants through electrostatic attraction effect with dye molecules. The humic acid type adsorption material is low in raw material price, is simple in synthesis process, and is green and environmentally friendly.
BIO-BASED NON-ISOCYANATE POLY(URETHANE-AMIDE) THERMOPLASTIC POLYMERS
Disclosed are bio-based poly(urethane amide) polymers and methods for forming the polymers. The bio-based polymers can be synthesized through a ring opening reaction between bio-based cyclocarbonated polymers that include aromatic and/or cyclic functionality within the polymer and oligomeric polyamides. The cyclocarbonated polymers can be based on bio-based polyols, e.g., lignin or lignin-based polyols, and/or other aromatic or cyclic bio-based polyols. The oligomeric polyamides can be formed by reaction of one or more diamines, which can include bio-based diamines, and one or more dicarboxylic acids, which can include bio-based dicarboxylic acids.
METHOD AND AN APPARATUS FOR FORMING A LIGNIN FRACTION, A LIGNIN COMPOSITION AND ITS USE
The invention relates to a method and an apparatus for forming a lignin fraction from crude lignin which has been processed by means of a treatment step selected from enzymatic treatment, treatment with ionic liquid and their combinations. The method comprises treating the crude lignin (1) by a lignin liberation in at least one lignin liberation step (3), and separating a lignin fraction (6) in at least one separation step (5). Further, the invention relates to a lignin composition and its use.
Lignin-PLGA Biopolymers and Nanoparticles, and their Synthesis and Use
Amphiphilic biopolymers have been synthesized by grafting lignin onto PLGA to form graft polymers, which can then be further assembled into polymeric nanoparticles without a requirement for surfactants. The nanoparticles have a typical diameter of 75 nm. The nanoparticles may be used, for example, for drug delivery, including efficient and effective drug delivery against cancers such as triple negative breast cancers.
Processes for producing lignin-coated hydrophobic cellulose, and compositions and products produced therefrom
Processes disclosed are capable of converting biomass into high-crystallinity, hydrophobic cellulose. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and depositing lignin onto cellulose fibers to produce lignin-coated cellulose materials (such as dissolving pulp). The crystallinity of the cellulose material may be 80% or higher, translating into good reinforcing properties for composites. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the hydrophobic cellulose to form completely renewable composites.
METHOD AND APPARATUS FOR SEPARATING LIGNOCELLULOSE PARTICLE FRACTION AND LIGNIN PARTICLE FRACTION, LIGNIN PARTICLE COMPOSITION, LIGNOCELLULOSE PARTICLE COMPOSITION AND THEIR USE
The invention relates to a method and an apparatus for separating lignocellulose particle fraction (3) and lignin particle fraction (4), in which crude lignin (1) formed from starting material (6) comprises lignocellulose particles and lignin particles. According to the invention, the method comprises adding stabilizing chemical (11) and/or hydrophobic chemical (12) into the crude lignin (1) in at least one step, and treating the crude lignin by separating the lignin particle fraction (4) and lignocellulose particle fraction (3) from each other in at least one separation step (2,8,9,10). Further, the invention relates to a lignocellulose particle fraction and a lignin particle fraction and their uses.