Abstract: The present invention describes a method intended for lignin recovery, said method comprising: a step of mixing a stream of black liquor with an acidic biomass stream for providing a mixed heterogenous stream; a step of separating the mixed stream in a separation unit for providing one aqueous light phase stream and one lignin-containing heavy phase stream.

Abstract: Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g., in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation. A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow.

Abstract: A process for valorization of a crude waste textile material comprising cotton fibers, viscose fibers and/or other cellulosic textile fibers into cellulose pulp.

Abstract: The present disclosure relates to a process for manufacturing organic chemicals and/or distillate hydrocarbon fuels from waste textiles comprising cellulosic fibers, wherein the process includes providing waste textiles comprising cellulosic fibers, processing the waste textiles into an aqueous slurry of comminuted waste textiles, saccharification of the comminuted waste textiles into monomer sugars in the presence of a catalyst; and processing the monomer sugars into organic chemicals and/or distillate hydrocarbon fuels.

Abstract: The present invention is directed to a cellulosic fibre composition comprising regenerated cellulose and one or more additives, wherein a) the cellulosic fibre composition is produced by injecting an aqueous alkaline spindope solution or suspension comprising dissolved cellulose in a concentration from about 5% to about 12% by weight of spindope and at least one of an additive and a nano-sized structured particulate filler through a nozzle into an alkaline coagulation bath forming cellulosic filaments; and b) stretching or washing cellulosic filaments from a) in one or more stretching and washing baths forming a regenerated cellulosic fibre.

Abstract: The present invention is directed to a process for the production of a syngas suited for further conversion to fine chemicals and/or automotive fuels from biomass by a thermochemical process conducted in a several steps procedure, said process comprising; a) Providing a stream of biomass material; b) Providing an aqueous alkaline catalyst stream comprising sodium and/or potassium compounds; c) Mixing comminuted biomass and alkaline catalyst and optional additives to form an alkaline biomass slurry or suspension; d) Treating alkaline biomass slurry or suspension in a hydrothermal treatment reactor at a temperature in the range of 200-400° C.

Abstract: Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g., in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation. A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow.

Abstract: The present invention describes a method for the treatment of tall oil pitch (TOP), said method comprising heating the TOP and optionally additives including water and steam to a temperature of at least 300° C.; maintaining the temperature in the reactor at 300° C. or higher for a period of time to enable thermal treatment of the TOP to act on components thereof to produce fatty acids and/or rosin acids, and/or derivatives thereof, and/or unsaponifiables and/or derivatives having lower molecular weight compared to the high molecular weight components with molecular weights of at least 350 g/mole present in the original TOP, to yield a modified TOP material with lower viscosity.

Abstract: The present invention describes a method for the treatment of tall oil pitch (TOP), said method comprising heating the TOP and optionally additives including water and steam to a temperature of at least 300° C.; maintaining the temperature in the reactor at 300° C. or higher for a period of time to enable thermal treatment of the TOP to act on components thereof to produce fatty acids and/or rosin acids, and/or derivatives thereof, and/or unsaponifiables and/or derivatives having lower molecular weight compared to the high molecular weight components with molecular weights of at least 350 g/mole present in the original TOP, to yield a modified TOP material with lower viscosity.

Abstract: The present invention is directed to a cellulosic fibre composition comprising regenerated cellulose and one or more additives, wherein a) the cellulosic fibre composition is produced by injecting an aqueous alkaline spindope solution or suspension comprising dissolved cellulose in a concentration from about 5% to about 12% by weight of spindope and at least one of an additive and a nano-sized structured particulate filler through a nozzle into an alkaline coagulation bath forming cellulosic filaments; and b) stretching or washing cellulosic filaments from a) in one or more stretching and washing baths forming a regenerated cellulosic fibre.

Abstract: The present invention is directed to a process for the production of a syngas suited for further conversion to fine chemicals and/or automotive fuels from biomass by a thermochemical process conducted in a several steps procedure, said process comprising; a) Providing a stream of biomass material; b) Providing an aqueous alkaline catalyst stream comprising sodium and/or potassium compounds; c) Mixing comminuted biomass and alkaline catalyst and optional additives to form an alkaline biomass slurry or suspension; d) Treating alkaline biomass slurry or suspension in a hydrothermal treatment reactor at a temperature in the range of 200-400° C.

Abstract: A process for depolymerization of lignin, the process including using at least one catalyst internal to a pulp mill for performing catalytic treatment and separation of biomass components into cellulose and lignin rich material is provided.

Abstract: The present invention concerns a method for the recovery of solvent in a process for preparation of regenerated cellulosic fibers using sodium hydroxide as solvent for cellulose dissolving in the manufacturing of a cellulose spinning dope wherein sodium hydroxide present in the spinning dope is at least partially recovered and recycled as sodium hydroxide from a cellulose fiber regeneration or cellulose coagulation step and wherein said cellulose fiber regeneration or cellulose coagulation step consists of a bath into which cellulose spinning dope is injected. Recovered sodium hydroxide may be directly or indirectly recycled from a cellulose fiber regeneration or cellulose coagulation step to a cellulose dissolving step.

Abstract: The present invention pertains to a process for refining of crude tall oil (CTO). The process comprises fractionation under vacuum of a refined CTO into at least one stream of refined tall diesel (RTD) or tall oil fatty acids (TOFA), the RTD or TOFA comprises from 2-30% by volume of resin acids and from 20-90% by volume of fatty acids, and at least one stream of resin acid(s) (RA) comprising less than 5% by volume of fatty acids. The stream of RTD or TOFA is deoxygenated forming hydrocarbon compounds in a subsequent step. This invention also relates to a refined tall diesel. Furthermore, a process for the production of a refined tall diesel (RTD) composition, wherein crude sulphate turpentine(s) (CST) is added to the refined tall diesel (RTD) composition, is described.

Abstract: A process for pre-treatment of a crude tall oil (CTO) for removal of impurities is disclosed. The process comprises a first pre-treatment step involving a CTO wash and a separation of a first oil phase comprising refined CTO and an aqueous phase holding impurities, and a second step involving a separation of a second oil phase from the aqueous phase. A process for refining of crude tall oil (CTO) is also disclosed. The process comprises fractionation under vacuum of a refined CTO into at least one stream of refined tall diesel (RTD) or tall oil fatty acids (TOFA) and at least one stream of resin acid(s) (RA). The stream of RTD or TOFA is deoxygenated forming hydrocarbon compounds in a subsequent step. This invention also relates to a refined tall diesel. Furthermore, a process for the production of a refined tall diesel (RTD) composition, wherein crude sulphate turpentine(s) (CST) is added to the refined tall diesel (RTD) composition, is described.

Abstract: The present invention concerns a method for the recovery of solvent in a process for preparation of regenerated cellulosic fibers using sodium hydroxide as solvent for cellulose dissolving in the manufacturing of a cellulose spinning dope wherein sodium hydroxide present in the spinning dope is at least partially recovered and recycled as sodium hydroxide from a cellulose fiber regeneration or cellulose coagulation step and wherein said cellulose fiber regeneration or cellulose coagulation step consists of a bath into which cellulose spinning dope is injected. Recovered sodium hydroxide may be directly or indirectly recycled from a cellulose fiber regeneration or cellulose coagulation step to a cellulose dissolving step.

Abstract: The present invention describes a method for the treatment of spent pulping liquor for the removal and production of organic substances rich in lignin and recovering or recycling of aqueous cooking chemicals to pulp mill chemicals recovery cycle, said method comprising passing a spent pulping liquor flow from a digester or an evaporator, DF or from any other step in between the digester and the evaporator, through a filtration step in which the flow is separated into one aqueous stream comprising cooking chemicals being recovered or recycled and one stream concentrated with the respect of organic substances; passing the stream concentrated with respect of organic substances either to a lignin depolymerisation step for the production of liquid and pumpable depolymerised lignin or passing the stream concentrated with respect to organic substances to a subsequent filtration step in which an aqueous solution is added and further treatments in order to produce a solid lignin containing product.

Abstract: There is disclosed a method for isolation and purification of phytosterols from tall oil pitch comprising the steps of: a) contacting the tall oil pitch with a solvent to form a tall oil solvent mixture; b) separating the tall oil pitch solvent mixture in at least two separate streams wherein one process stream is enriched in acidic pitch components and a second stream enriched in free- and bound sterols in the form of steryl esters; c) subjecting the stream enriched in free- and steryl esters to treatment with an alcohol under transesterification conditions wherein a reaction mixture is formed and sterols comprising the steryl esters are liberated as free sterols; and d) separating the free sterols from the reaction mixture of step c) by crystallization and extraction with one or more solvents. There are disclosed free fatty acids and resin acids separated from the tall oil pitch. Moreover, there is disclosed a manufacture and separation of fatty acid alkyl esters by the method.

Abstract: The present invention pertains to a process for refining of crude tall oil (CTO). The process comprises fractionation under vacuum of a refined CTO into at least one stream of refined tall diesel (RTD) or tall oil fatty acids (TOFA), the RTD or TOFA comprises from 2-30% by volume of resin acids and from 20-90% by volume of fatty acids, and at least one stream of resin acid(s) (RA) comprising less than 5% by volume of fatty acids. The stream of RTD or TOFA is deoxygenated forming hydrocarbon compounds in a subsequent step. This invention also relates to a refined tall diesel. Furthermore, a process for the production of a refined tall diesel (RTD) composition, wherein crude sulphate turpentine(s) (CST) is added to the refined tall diesel (RTD) composition, is described.

Abstract: A process for pre-treatment of a crude tall oil (CTO) for removal of impurities is disclosed. The process comprises a first pre-treatment step involving a CTO wash and a separation of a first oil phase comprising refined CTO and an aqueous phase holding impurities, and a second step involving a separation of a second oil phase from the aqueous phase. A process for refining of crude tall oil (CTO) is also disclosed. The process comprises fractionation under vacuum of a refined CTO into at least one stream of refined tall diesel (RTD) or tall oil fatty acids (TOFA) and at least one stream of resin acid(s) (RA). The stream of RTD or TOFA is deoxygenated forming hydrocarbon compounds in a subsequent step. This invention also relates to a refined tall diesel. Furthermore, a process for the production of a refined tall diesel (RTD) composition, wherein crude sulphate turpentine(s) (CST) is added to the refined tall diesel (RTD) composition, is described.