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Matches 1 - 50 out of 828

Document Document Title
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/2020/249992A1
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/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 ...  
WO/2020/034395A1
On the basis of existing problems in the prior art in the pretreatment of lignocellulose, the present invention provides a method suitable for pretreating lignocellulosic biomass, suitable for producing fermentable sugars by saccharifyin...  
WO/2020/005130A1
A method for continuous steam explosion discharge of a pressurised reactor for thermal treatment of lignocellulose biomasses. The steam explosion discharge is complete decoupled from the thermal treatment step and the loss of steam from ...  
WO/2019/226087A1
A system for treatment of a biomass material, said system comprising:a first vessel (3) in which said biomass material is treated under a first pressure; a second vessel (5) in which said biomass material is received and held at a second...  
WO/2019/212396A1
A system for treatment of a biomass material and a method for transporting biomass material, said system comprising: - a first vessel (3) in which said biomass material is treated at a first pressure; - a second vessel (5) in which said ...  
WO/2019/209153A1
A reactor vessel (1) for biomass material, wherein said reactor vessel (1) is a pressurized reactor vessel, said reactor vessel being elongated and comprising: a substantially tubular vessel part (3); two gables (5a, 5b) connected one to...  
WO/2019/196165A1
Disclosed is a method for continuously separating a lignocellulose component, the method comprising the following steps: chopping straw, washing same with water, conveying lignocellulose into a twin-screw extruder (4), introducing an alk...  
WO/2019/170962A1
The present invention relates to a process for producing dissolving pulp from comminuted wood-based fibrous material. The process comprises the following consecutive stages: cooking comminuted fibrous material with alkaline cooking liquo...  
WO/2019/165324A1
This disclosure relates to methods of making novel dissolving wood pulps by processes comprising acid prehydrolysis, pulping, and a multi-stage bleaching process comprising oxidation with a catalyst and peroxide under acidic conditions, ...  
WO/2019/109133A1
A method for producing a microbial cellulose pulp for the production of viscose dope, the method comprising the step of: exposing a microbial cellulose to a volume of water to form the microbial cellulose pulp for the production of visco...  
WO/2019/103674A1
According to the present invention, there is provided a cleaning system for biomass material handling systems and methods for such system.The cleaning system for a biomass material treatment stage in a continuous process system includes ...  
WO/2019/090413A1
A process for converting lignocellulosic biomass to glucose or ethanol includes subjecting the lignocellulosic biomass to a SO2 pretreatment within the temperature range 110°C-150°C. Good glucose yields have been achieved when the SO2 ...  
WO/2019/088906A1
A reactor arrangement for pre-hydrolysis of biomass material. The reactor arrangement comprises a reactor vessel arranged substantially horizontally, wherein the vessel comprises an inlet for receiving the biomass material arranged at an...  
WO/2019/083427A1
The invention relates to a feeding arrangement (1) for feeding comminuted biomass material through a treatment stage (200), which feeding arrangement comprises a screw feeder (10), which comprises an inlet (12) and an outlet (13), and a ...  
WO/2019/059835A1
A process of treating wood chips for reduction of the content of undesirable inorganic elements prior to cooking in a production line for chemical pulp, wherein the chips are (I) squeezed at atmospheric pressure by volumetric compression...  
WO/2019/039982A1
The invention relates to a prehydrolysis-kraft process where the hydrolysate is withdrawn in a position where withdrawal capacity may be obtained over a longer operational period. According to the inventive process is the first volume of...  
WO/2019/018922A1
A method and system to produce treated Cellulose Filaments (CF) and CF products are provided. Feedstock comprising CF in a water solution are mixed with a debonder to produce a mixed stream. The mixed stream is filtered yielding separate...  
WO/2019/009792A1
The invention relates to a method for inhibiting build-up of deposits of sticky reaction products on the interior reactor surfaces in an acidic prehydrolysis zone of continuous vertical reactor vessels or digesters and a reactor design t...  
WO/2019/004894A1
The invention relates to a method for extraction of saccharides from a lignocellulosic material and comprises the steps of mixing the lignocellulosicmaterial with afluid; dewatering the mixture of lignocellulosic material and fluid; and ...  
WO/2018/211175A1
The present invention relates to a method of producing chemical pulp. The method comprises at least the following steps: a) wood chips or other comminuted lignocellulosic fibrous material is treated with a polysulfide-containing cooking ...  
WO/2018/202673A1
The invention relates to a method for treating biomass(2). Biomass (2) is fed to a pressurized prehydrolysis reactor unit (8) by means of a feeding system (5, 7), wherein by means of the feeding system (5, 7) the biomass (2) is compresse...  
WO/2018/147784A1
The invention relates generally to a system and a method for the removal of silica contaminants from wood chips in a prehydrolysis kraft cooking pulp production process, and in particular to a system and a method in which silica is remov...  
WO/2018/114905A1
The invention relates to a two-stage digestion method for chemical fractionation of lignocellulose. In a first stage, the lignocellulose is pre-treated with water vapor or water at temperatures above 100 °C and increased pressures. In a...  
WO/2018/115290A1
The present invention relates to a method for manufacturing dissolving pulp using wood material, the method comprising the steps of; subjecting the wood material to a hydrothermal treatment using steam and/or water, a) digesting the wood...  
WO/2018/104490A1
The invention relates to a method for treating biomass (2). In a step (S10), biomass (2) and an impregnation liquid are fed into a first reactor unit (10) such that the biomass (2) is impregnated with the impregnation liquid while the bi...  
WO/2018/104484A1
The invention relates to a method for treating biomass (1). In a step (S10) of the method, the biomass (1) and an amount of water (2) is fed into a first reactor unit (10) such that the biomass (1) is impregnated using the amount of wate...  

Matches 1 - 50 out of 828