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Matches 1 - 50 out of 687

Document Document Title
WO/2022/098963A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss of fiber length or pulp yield. The high degree of...  
WO/2022/098962A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a brightness of about 80% or greater. The relatively high degree of brightness is achieved without a loss fiber length or pulp yield. The high degree of br...  
WO/2022/098958A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particul...  
WO/2022/098956A1
Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a porosity of about 100 cfm or greater. The relatively high degree of porosity is achieved without a loss in tensile strengths. The high degree of porosity...  
WO/2022/084573A1
A method is presented for controlling values of one or more process parameters of a pretreatment process of lignocellulosic biomass particles. The pretreatment process comprises subjecting the impregnated lignocellulosic biomass particle...  
WO/2022/082298A1
Cellulose particles treated with a bio-based surfactant can be compounded into a polymer composite having improved mechanical properties, such as tensile strength and/or tensile modulus. Treatment can be integrated into an industrial sca...  
WO/2022/084574A1
A method is presented for preparing samples for measuring a lignin content in a mass of pretreated lignocellulosic biomass particles. The pretreatment process comprises subjecting the lignocellulosic biomass particles to a hemihydrolysis...  
WO/2022/055960A1
A pulping method includes chemical cooking of softwood chips to retain a high lignin content of about 18% to about 28% by weight and fiberization of the cooked softwood chips to a low residual wood shive content of at most 15% by weight.  
WO/2022/027080A1
The invention relates to a method for producing cellulose-fiber-based packaging products and to a cellulose-fiber-based packaging product. The method comprises producing at least one first material comprising cellulose fibers, producing ...  
WO/2022/018188A1
The present invention relates to an activated dyed carrot fibre and to a method for the production thereof. The invention also relates to the use of the activated dyed carrot fibre as a thickening or structuring agent in various industri...  
WO/2022/008791A1
The present invention discloses a cooking method and a digester system whereinpartly digested cellulosic fiber source is compressed during cooking to provide highmolecular weight xylan, high molecular weight lignin and pulp.  
WO/2022/008790A1
The present invention discloses a cooking method wherein partly digested wood based cellulosic raw materal is compressed during cooking to provide high molecular weightxylan, lignin and pulp.  
WO/2021/251861A1
A pre-hydrolysis pressure vessel system comprising a transport screw arrangement (3), said transport screw arrangement comprising a transport screw (5) provided inside an enclosing housing (7), said transport screw (5) being configured f...  
WO/2021/239647A1
The present disclosure generally relates to a method for controlled pretreatment of lignocellulosic biomass. The method comprises the steps of: Pretreating (S10) a lignocellulosic biomass material in a pretreatment arrangement, the pretr...  
WO/2021/229144A1
A method for producing recycled fibers from MDF or HDF containing material, for instance for use in MDF or HDF production. The method comprises steaming (2) the MDF or HDF containing material for a predetermined time to obtain steamed ma...  
WO/2021/214387A1
According to an example aspect of the present invention, there is provided a method for prehydrolysing lignocellulosic chip material in a reaction vessel by a prehydrolysis reaction carried out in the presence of steam at a reaction temp...  
WO/2021/171014A1
A plant and process for performing thermolysis of cellulose uses a thermolysis reactor (20) which comprises a reactor duct (30) having a longitudinal axis (31), and an eductor (32) at one end of the reactor duct (30). The eductor (32) ha...  
WO/2021/156246A1
The present disclosure generally relates to a pretreatment arrangement (100) for pretreatment of lignocellulosic biomass comprising a reactor vessel (101) having an upstream inlet (102) for receiving biomass and a downstream outlet (103)...  
WO/2021/151904A1
The invention relates to a method for obtaining a cellulosic pulp from a plant material comprising, by weight, at least 50% hemp stalks harvested at or after the flowering stage of maturity, the hemp stalks having at least 30% hemp chaff...  
WO/2021/151149A1
Disclosed is a process of defibrillating bacterial nanocellulose. The process may comprise providing a pulp comprising bacterial nanocellulose and an alkaline solution and freezing the pulp to form a frozen pulp. The process may comprise...  
WO/2021/141712A1
A method for manufacturing bleached pulp from a feedstock that includes recycled paper. The method includes steps of: (1) impregnating the feedstock with cooking liquor to yield an impregnated material having a liquor-to-fiber mass ratio...  
WO/2021/140249A1
The invention to which this application relates is apparatus and a method for use in the preconditioning, processing of a material mixture and forming of end products from the processed material mixture which includes fibres such as cell...  
WO/2021/118425A1
Method for treating biomass, comprising compressing and dewatering (62) the biomass to a dry solid content of DS1 % by weight; feeding (63) compressed biomass to a treatment vessel; adding (64) a treatment liquid to said treatment vessel...  
WO/2021/102498A1
The invention relates to a method for obtaining cellulose fibres from fibrous biomass (10), in which: the biomass (10) is first subjected to thermo-pressure hydrolysis, preferably with steam explosion, in a thermo-pressure hydrolysis pla...  
WO/2021/104691A1
The invention relates to a method for macerating a material to be conveyed, wherein the material to be conveyed is passed over a compression screw (2) and is macerated and compressed into a gas-tight and liquid-tight plug. The invention ...  
WO/2021/097270A1
A process for the production of cellulose, lignocellulosic sugars, lignosulfonate, and ethanol from lignocellulosic biomass. The process comprises steaming, pretreatment, chemical recovery, saccharification, and optionally fermentation. ...  
WO/2021/072342A1
Some variations provide a process for impregnating a biomass feedstock with a reaction solution, comprising: providing a biomass feedstock that contains non-condensable gases within biomass pores; introducing a condensable vapor into the...  
WO/2020/249992A9
The high alpha and high Intrinsic Viscosity pulp production apparatuses, methods and systems (hereinafter "high-A high-IV pulp production") disclosed herein provide for pulp processing used in connection with Kraft Processes (KP) or Pre ...  
WO/2021/024025A1
An embodiment of the current invention provides a hopper for preparing empty fruit bunch (EFB) fibers in a paper and/or pulp production process. The hopper comprises an inlet, one or more pipes comprising holes and an outlet. The inlet o...  
WO/2021/024026A1
An embodiment of the current invention provides a method for preparing empty fruit bunch (EFB) fibers in a paper and/or pulp production process. The method comprises the following steps: EFB fibers are delivered and/or loaded into a hopp...  
WO/2021/006798A1
A method for the manufacturing of cellulose dissolving pulp from virgin wood cellulose and crude recycled textile cellulosic material by charging recycled textile material to a brownstock washing step, an oxidative alkaline pulp bleachin...  
WO/2020/263153A1
The present invention relates to a method for extracting hemicellulose from lignocellulosic material, the method comprising: a) providing (11) lignocellulosic material in a digester, b) supplying (12) steam to the digester, c) performing...  
WO/2020/245055A1
The invention relates to a method for providing a prepared cellulose-containing mixed source material (110), in particular, a mixed source material (110) for forming a cellulose shaped body (102), in particular, a regenerated cellulose s...  
WO/2020/236061A1
A method for extracting hydrolysate in a batch cooking process for producing pulp, said method comprising the steps of: - providing lignocellulose raw material to a batch cooking vessel; - performing acid hydrolysis of the lignocellulose...  
WO/2020/229722A1
The invention relates to method for producing viscosity controlled cellulosic material having a viscosity value in a range between 150 ml/g and 500 ml/g in a continuous process, the method comprising the following steps: i) forming a cel...  
WO/2020/223792A1
A process for producing a fuel from lignocellulosic biomass is disclosed. The process includes obtaining a feedstock comprising lignocellulosic biomass, pretreating a slurry containing the lignocellulosic feedstock, sulfur dioxide, and o...  
WO/2020/220047A1
A process for forming a conductive hemp-based ink comprising carbonizing hemp and reducing the particle size of said hemp via a milling process to between 2 and 5 microns, wherein said reduced size hemp particles are combined with at lea...  
WO/2020/209771A1
The invention relates to a discharge screw assembly (12) for discharging treated biomass material (A) received from a reactor vessel (2; 102), which discharge screw assembly comprises an inner space (23) that extends along a longitudinal...  
WO/2020/204793A1
The present invention relates to a method for extracting hemicellulose from lignocellulosic material, the method comprising - providing (11) a quantity of lignocellulosic material comprising a first amount of hemicellulose, - determining...  
WO/2020/204780A1
A method for extracting hydrolysate in a batch cooking process for producing pulp, a hydrolysate extracting arrangement and a batch cooking system.Said method comprising the steps of: -providing lignocellulose raw material to a batch coo...  
WO/2020/204783A1
A method and a hydrolysate extracting arrangement in a continuous cooking process for producing pulp, said method comprising the steps of: (e)cooling a content in a prehydrolysis vessel (5a; 5b; 5c; 5d) of a continuous pulp production sy...  
WO/2020/157055A1
A process for the conversion of a particulate solid material comprising hemicellulose, cellulose and lignin, said process being conducted in at least one reactor comprising said particulate solid material and interstitial space. The proc...  
WO/2020/152178A1
The present invention provides a method of producing an improved cellulose pulp consisting of cellulose fibers of a desired length, such as cellulose fibers having a length-weighted average fiber length Lc(l) > 0.6 mm and its use in cell...  
WO/2020/133857A1
Disclosed is a method for preparing a biomechanical unbleached pulp from grass straw, wherein same is obtained by treating grass as a raw material with an alkaline biological enzyme, then subjecting same to a heating treatment by means o...  
WO/2020/096854A1
A process for the isolation of cellulose nanofibers, in particular carboxylic acid functionalized cellulose nanofibers (MxG-CNF-CO2H) from the sustainable grass hybrid Miscanthus x. Giganteus (MxG). The process includes the steps of perf...  
WO/2020/094322A1
The invention relates to a rotor for a heating unit comprising a rotor housing and a rotatable rotor shaft, which is provided in the rotor housing and has add-on components for influencing a stock suspension to be heated, which flows thr...  
WO/2020/091675A1
The invention relates to a discharge screw arrangement (12) for discharging lignocellulosic material (7) from a lignocellulosic treatment reactor (1) and comprises a discharge screw (10), a feeder pipe (11) and a blow pipe (5), the disch...  
WO/2020/082427A1
A method for using poplar bark to produce acetylation-grade dissolving pulp: adding a promoter for pre-hydrolysis; Soda/AQ boiling stage I; Soda/AQ boiling stage II; OPDQEPP bleaching; and enzyme co-processing. A high purity and highly r...  
WO/2020/070389A1
The invention relates to a method for feeding a slurry of chips and liquid to a prehydrolysis reactor in the production of dissolving pulp. The slurry is pumped by using at least one pump to the reactor, and alkali is fed into the at lea...  
WO/2020/040677A1
According to the present invention, there is provided a treatment process system for biomass material and methods for such system. The system comprises a first dewatering stage arranged to receive biomass material, to remove liquid from ...  

Matches 1 - 50 out of 687