Abstract: The present invention relates to a method for increasing the reactivity of lignin, wherein the method comprises the following steps: a) forming, under heating at a temperature of 71-94° C., an aqueous dispersion comprising alkali and lignin, wherein the alkali comprises a hydroxide of an alkali metal; and b) heating the dispersion formed in step a) at a temperature of 50-95° C. for producing alkalated lignin.

Abstract: The invention relates to a method for processing chemically modified fibril cellulose. The method includes introducing chemically modified fibril cellulose material to a thermal drying device including a belt in such a way that the fibril cellulose material forms at least one bar onto the belt, and dewatering the chemically modified fibril cellulose material on the belt using heated air flow having a temperature of at least 40 ° C. in order to concentrate and/or dry the chemically modified fibril cellulose material in such a way that the dry solids content of the fibril cellulose material after the thermal drying device is at least 10%. In addition, this invention relates to a thermal drying device, a system for processing chemically modified fibril cellulose, a method and a system for redispersing the fibril cellulose, and a fibril cellulose material.

Abstract: The invention relates to a method for treating lignin, wherein the method comprises the following steps: a) dissolving lignin into an aqueous composition, which contains a compound selected from the class of phenols, while keeping the temperature of the composition at 0-60° C.; and b) allowing the composition to react while keeping the temperature of the composition at 60-100° C. and the pH of the composition at a pH value of 6-14. The invention relates further to a method for producing a binder composition and to dissolve lignin into an aqueous composition different applications thereof.

Abstract: A method for processing fibril cellulose which is in the form of aqueous fibril cellulose gel includes lowering the pH of the aqueous fibril cellulose gel to provide aqueous fibril cellulose gel of reduced water retention capacity, and dewatering the aqueous fibril cellulose gel of reduced water retention capacity to provide dewatered fibril cellulose. The dewatering is performed by pressure filtration.

Abstract: In a method for catalytic oxidation of cellulose a heterocyclic nitroxyl radical is used as catalyst, hypochlorite is used as main oxidant acting as oxygen source, and a tertiary amine or chlorine dioxide as an activator of the heterocyclic nitroxyl radical.

Abstract: The invention relates to a method for improving strength and retention in the manufacture of paper. According to the invention, a composition containing microfibrillated cellulose is provided in a fiber suspension, and from 0.1 to 10 w-% of microfibrillated cellulose by mass of the fiber suspension is added to improve the strength and retention of the product to be formed. In addition, the invention relates to a corresponding paper product.

Abstract: Composite body comprises nanofibrillar cellulose (NFC) together with abrasive particles (AP). The nanofibrillar cellulose forms a 3-dimensional connecting network for the abrasive particles (AP). The abrasive particles have a hardness above 7 on Mohs scale. The composite body is used for grinding, polishing or cutting.

Abstract: The invention relates to a process for producing hydrocarbon components, comprising: providing a feedstock comprising tall oil and terpene-based compounds; subjecting the feedstock and a hydrogen gas feed to a hydroprocessing treatment in the presence of a hydroprocessing catalyst to produce hydrocarbon components including n-paraffins, and subjecting the hydrocarbon components including n-paraffins to isomerisation in the presence of a dewaxing catalyst to form a mixture of hydrocarbon components. The invention also relates to an apparatus for implementing the process. The invention further relates to a use of the hydrocarbon components produced by the process as a fuel or as an additive in fuel compositions. The invention also relates to a use of a NiW catalyst on a support selected from Al2O3, zeolite, zeolite-Al2O3, and Al2O3—SiO2 for producing fuel or an additive for fuel compositions from a feedstock comprising tall oil and terpene-based compounds.

Abstract: The present invention relates to a fiber reinforced composite comprising a reinforcing constituent of fibers embedded in a resin matrix, wherein the resin matrix comprises epoxy resin crosslinked with aminated lignin. The invention further relates to a method for the production of a fiber reinforced composite.

Abstract: The present invention related to a fiber mat reinforced resin composite comprising a reinforcing constituent of fibers in the form of at least one mat embedded within a resin matrix. The invention further relates to a method for the production of a fiber mat reinforced resin composite.

Abstract: A method for making nanofibrillar cellulose includes mixing anionized or cationized cellulose fibers and cellulose pulp to a mixture including at least 1% and below 90 wt-% cellulose pulp based on dry weight, and subjecting the mixture to a refiner stage where the anionized or cationized cellulose fibers are at least partly reduced to nanofibrillar cellulose and the cellulose pulp acts as auxiliary pulp, and obtaining a mixture of nanofibrillar cellulose and cellulose pulp from the refining stage. The mixture can be used for making paper by adding it to base pulp.

Abstract: A Method of pretreating native cellulose pulp in the manufacture of nanofibrillated cellulose, and a nanofibrillated cellulose product obtainable by the method.

Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and drying the web in order to form paper or board. According to the invention the water content of the suspension from which the web is formed is 50% or less by weight of liquids. By means of the invention, energy consumption of paper manufacturing can be significantly reduced.

Abstract: The invention relates to a process for manufacturing composite material which contains fiber based and polymer based material, wherein the manufacture includes a preliminary treatment process to form a raw stock mixture. According to the invention, the preliminary treatment process includes a hot-cold mixing device which comprises at least a heating stage, and that raw stock, which contains lignin-free material, and a coupling agent are fed to the mixing device to form the raw stock mixture, and adhesion between fiber based and polymer based substances of the raw stock is ameliorated by the coupling agent.

Abstract: The present invention provides a composition comprising 8-30 mass % of C4-12 linear alkanes, 5-50 mass % of C4-12 branched alkanes, 25-60 mass % of C5-12 cycloalkanes, 1-25 mass of C6-12 aromatic hydrocarbons, no more than 1 mass % of alkenes, and no more than 0.5 mass % in total of oxygen-containing compounds; wherein the total amount of C4-12 alkanes is 40-80 mass %, and the total amount of C4-12 alkanes, C5-12 cycloalkanes and C6-12 aromatic hydrocarbons is at least 95 mass %; and wherein the amounts are based on the mass of the composition. Also provided is a method for producing the composition comprising the step of hydroprocessing a biological feedstock using a catalyst and the step of fractionating the product of the hydroprocessing step.

Abstract: A single-disc refiner (1) has a stationary refining element (2) and an opposed rotatable refining element (12), each of which has a radially inner blade element (4, 14) providing an inner refining surface area and a radially outer blade element providing an outer refining surface area. The inner and outer refining surface areas of each refining element together provide a refining surface of the refining element, the refining surfaces defining a feed zone (29) followed by a treatment zone (30) with a transition point therebetween located at a radial distance of 70-90% from the center of the refiner or at a radial distance of 50-80% from the innermost edge (25, 27) of the refining element or at a radial distance of 20-50% from the inner edge (34) of the outer blade element (8, 18, 33) towards the outermost edge (26, 28, 35) of the refining element.

Abstract: An agent for oilfield applications capable of being dispersed in water is nanofibrillar cellulose. The nanofibrillar cellulose mixed in water gives shear-thinning behavior to the composition, which is pumped to a subterranean oil-containing formation to aid in oil recovery.

Abstract: The invention relates to a method for processing chemically modified fibril cellulose. The method includes introducing chemically modified fibril cellulose material to a thermal drying device including a belt in such a way that the fibril cellulose material forms at least one bar onto the belt, and dewatering the chemically modified fibril cellulose material on the belt using heated air flow having a temperature of at least 40° C. in order to concentrate and/or dry the chemically modified fibril cellulose material in such a way that the dry solids content of the fibril cellulose material after the thermal drying device is at least 10%. In addition, this invention relates to a thermal drying device, a system for processing chemically modified fibril cellulose, a method and a system for redispersing the fibril cellulose, and a fibril cellulose material.

Abstract: Disclosed is a process for converting bio-oil, wherein the process includes the steps, where a feedstock including bio-oil selected from bio-oils, any fractions of bio-oils and any combinations thereof is subjected to azeotropic distillation with at least one alcohol to yield a liquid component, and subjecting the liquid component to alcoholysis whereby converted bio-oil is obtained. The invention also relates to the use of converted bio-oil, obtainable by the process, as heating oil, as starting material in processes for producing fuels, fuel components, fine chemicals, chemical building-blocks, and solvents.

Abstract: The present invention relates to a process and an apparatus for purifying tall oil material for the production of biofuels and components thereof. The present invention relates further to hydroprocessing of the purified material to obtain biofuels and components thereof.