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WO/2024/079390A1 |
A conveyor (1) for pretreated biomass (4), wherein the conveyor (1) comprising: a cylindrical shell (2) comprising an inlet (5) for receiving the pretreated biomass (4) and an outlet (6) whereat the pretreated biomass (4) passes out of t...
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WO/2024/057074A1 |
A screen assembly for a pulp treatment vessel, the screen assembly includes a screen plate disposed substantially parallel to an inner wall of the pulp treatment vessel and having a plurality of openings configured to pass liquor from a ...
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WO/2023/202946A1 |
The present invention relates to pretreatment of biomass using targeted alkaline hydrolysis with optional alkali recovery, where the biomaterial is steam exploded before an alkaline hydrolysis. The invention in particular relates to a me...
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WO/2023/196287A1 |
The method of improving an evaporative performance of a porous evaporative media in a cooling system that utilizes water evaporation for heat transfer, the method comprising contacting the porous evaporative media with a nonionic surfact...
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WO/2023/156828A1 |
Described are various embodiments of a tissue digester device, a method of introducing a caustic substance to a digestion chamber, a tissue digester system, a method of digesting small tissue bodies, a head encasing device which is opera...
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WO/2023/089341A2 |
An apparatus for processing feedstock, wherein the apparatus comprises: at least one feedstock supply means configured to hold feedstock; at least one reactor module; at least one steam reactor chamber; a feedstock filling manifold confi...
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WO/2023/085993A1 |
A vessel (10) for holding lignocellulosic material (2) comprises a wall (12) enclosing an interior volume (14) for holding the lignocellulosic material (2),and an outlet (50) arranged in the wall (12), preferably in a bottom wall (20), f...
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WO/2023/059256A1 |
A method for chemical pulp production in a multi-stage process, comprising a first process stage, comprising a woodyard comprising steps such as debarking, chipping, pile storage and/or reclaim; a second process stage, comprising a fiber...
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WO/2023/282815A1 |
A system for continuous hydrothermal steam treatment of biomass material, the system comprising a substantially vertically arranged pressurized vessel (4), a discharge device (6, 7a-b, 8) for discharging the biomass material from a botto...
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WO/2022/263630A1 |
Enzymatic treatment method and system for fibrous cellulosic material and rigid cellulosic product, wherein the method comprises introduction of raw fibrous cellulosic material (1) in a stirrer (20); enzymatic treatment of the raw fibrou...
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WO/2022/255921A1 |
A treatment vessel (10) for treating lignocellulosic material comprises a main section (20) having a first end (24) and a second end (26), and an outlet section (40) tapering from a first end (44) joined to the second end (26) of the mai...
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WO/2022/250602A1 |
A treatment vessel (10) for treating lignocellulosic material comprises a main section (20) having a first end (24) and a second end (26), and an outlet section (40) that is conical or frustoconical and tapers from a first end (44) joine...
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WO/2022/197957A1 |
An integrated process and corresponding apparatus that produces a relatively clean, delignified cellulose product from lignocellulosic biomass. The method includes treating a portion of the delignified cellulose itself as a substrate to ...
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WO/2022/189408A1 |
An apparatus for delignification and bleaching of fibres, comprises: a reactor for containing a bed comprising fibres; and a moveable head box for dispensing liquid into the reactor; wherein the head box is configured to rest on the bed ...
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WO/2022/189409A1 |
A reaction chamber for continuous chemical processing of fibrous material, comprising: an elongate cavity having first and second ends at opposite ends of the elongate cavity and configured to contain the fibrous material and any reagent...
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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...
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WO/2022/016159A9 |
Processing systems and methods are described for pre-processing processing of biomass. The systems include an extruder characterized by one or more ports though which acids and/or bases may be introduced to the biomass during extrusion. ...
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WO/2021/237436A1 |
Provided is a papermaking control system for maintaining the stability of the quantitative weight, thickness and moisture content, the system comprising: a feeding setting for selecting a papermaking raw material and providing a control ...
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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...
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WO/2021/232132A1 |
The present invention is related to a method for unplugging or cleaning a screen in a continuous process kraft cooking digester process, wherein the continuous Kraft cooking digester comprises a plurality of screens, each screen having a...
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WO/2021/178538A1 |
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that adjust a high-pressure feeder of a feed system used in pulp production based on the fluid leakage through a low-pressure outlet of a ...
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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...
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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)...
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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 ...
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WO/2021/104692A1 |
The invention relates to a method for conveying a material to be conveyed into an overpressure region (1) or out of an overpressure region (1), said material to be conveyed being supplied and/or discharged via a plug screw feeder (2) and...
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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...
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WO/2020/234511A1 |
The invention enables determining the reduction rate of a recovery boiler using optical information from a chemical smelt sample. A processor is used to read a digital frame at least part of which represents the chemical smelt sample of ...
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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...
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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...
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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...
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WO/2020/104730A1 |
An arrangement for installations of monitoring sensors of a vessel 1 for treatment of lignocellulosic material, which vessel (1) has a central pipe (2) comprising at least one concentric pipe (3), which is mounted coaxially within the ve...
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WO/2020/091659A1 |
The present invention relates to an outlet system for transporting comminuted lignocellulosic material from a vessel, said bottom portion (1) having an upper circumference (15) that is essentially circular and a lower circumference (16) ...
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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...
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WO/2020/071979A1 |
A system for feeding lignocellulosic biomass material, comprising a pre- compressing stage for receiving biomass material and pre-compressing the material at a first pressure and a first compression ratio. A plug screw feeder receives th...
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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...
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WO/2020/050757A1 |
A feeding arrangement comprising a transportation means (3) for transportation of material from a material supply to at least a first chute (7) and a second chute (8), a plug screw feeder (11) for feeding the material to the treatment st...
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WO/2020/046186A1 |
Disclosed is a screw feeder (10) comprising a pipe (3) enclosing a feed screw 4 arranged on a rotatory shaft (5) running parallel with the length direction of the pipe (3), said pipe (3) further comprising a number of dewatering holes (6...
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WO/2020/009634A1 |
The invention relates to a system and a method for feeding comminuted cellulosic material from a low-pressure zone (PL) to a high-pressure zone (PE) with at least 1 bar higher pressure. The invention uses a screw7 feeder having a feeding...
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WO/2020/005131A1 |
The present invention relates to a knot re-cooking arrangement for batch cooking of pulp, comprising: a batch digester (4) for cooking wood chips in a Kraft process to produce pulp, a knot removal device for removing knots (10) from pulp...
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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 ...
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WO/2019/238783A1 |
In a process for isolating lignin from an alkaline process stream, especially thickened black liquor, the alkaline process stream is introduced continuously into a lower region of at least one circulation reactor (1) having two reactor z...
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WO/2019/227285A1 |
Provided are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.
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WO/2019/194378A1 |
The present invention provides a method for manufacturing a nanocellulose fiber by using an eco-friendly process, comprising the steps of: (step 1) manufacturing pulp from wood or non-wood, which is a material; (step 2) irradiating, with...
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WO/2019/190375A1 |
The present invention relates to a diverter for a feed-out arrangement for a pulp treatment vessel such as a digester or an impregnation vessel, wherein the diverter comprises a body having an upper end and a lower end, the lower end hav...
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WO/2019/177508A1 |
The present invention relates to an arrangement for transferring pulp from one process stage to a subsequent process stage, the arrangement comprising a receiving portion for receiving pulp at a first dry solids content and a first press...
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WO/2019/177509A1 |
The present invention relates to an arrangement for withdrawing treatment liquors from a treatment vessel in a continuous treatment vessel system, said treatment vessel comprising a chamber wall of a treatment chamber, wherein the arrang...
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WO/2019/156831A1 |
The present disclosure relates, according to disclosed embodiments, to a system for extracting an organic compound from a natural source, the system comprising a computer processor operational to control the system; a storage vessel conf...
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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...
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WO/2018/222632A1 |
A method of pulping wastepaper includes providing a pulping vessel with a rotor and at least one flow sensor to measure slurry flow within the pulping vessel. The pulping vessel is charged a slurry (wastepaper and water), the amounts of ...
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WO/2018/217149A1 |
The invention relates to a chip chute (4; 21; 31; 41) which comprises an elongated, open main body (22; 32; 42) having a rectangular transverse cross-section, and comprises further a transition portion (23; 33; 43), which connects to the...
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