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Matches 1 - 50 out of 3,238

Document Document Title
WO/2021/043671A1
The present invention relates to a process for manufacturing an upgraded bio-oil derived from black liquor, comprising the following steps: − Providing black liquor, which comes from the pulp and paper manufacturing industry; − Subje...  
WO/2021/041782A1
The invention herein disclosed and claimed is a process for refining fiber from lignocellulosic biomass. The process provides refined fiber and agriculturally amenable co-products, with a virtually waste-free systems design.  
WO/2021/040952A1
The disclosure provides methods and compositions for reducing the viscosity of black liquor. Also provided are methods of inhibiting deposition of scale and methods of processing black liquor. In some embodiments, the compositions includ...  
WO/2021/038126A1
A process for reducing phosphorus in effluents from a pulping process (1) is disclosed. The process comprises combining a plurality of acidic effluents (2, 2', 2'') obtainable from the pulping process into an acidic effluent stream (3); ...  
WO/2021/032913A1
The specification relates to a method and a system for adjusting pH of green liquor dregs. The method comprises contacting a slurry containing green liquor dregs (100, 200, 300, 400, 500) with flue gas (101, 201, 301, 401, 501). The syst...  
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/2020/169809A3
The invention relates to a method for reducing the odour in particle-forming carbon materials and to the materials obtained therefrom and to the use thereof.  
WO/2020/260761A1
The invention enables automatic monitoring of smelt flow exiting a recovery boiler based on optical information. A processor is used to read at least one stationarily imaged video sequence, comprising digital image frames, comprising an ...  
WO/2020/260762A1
The invention enables determining one or more proportional particle group shares in flue gas of a recovery boiler (110) based on optical information gained from a flue gas sample. A processor (202) is used to read (301) a digital frame c...  
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/2020/243805A1
The present invention relates to processes for extracting lignin from black liquor. In particular, processes for both extracting acidic lignin and extracting alkaline lignin from black liquor are disclosed, comprising: precipitating lign...  
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/2020/226559A1
A method for producing a low ash content biofuel mixture comprising tall oil pitch (TOP) and lignin for use as a renewable feedstock in a petroleum refinery. The method comprises the following steps: - providing a stream of purified TOP ...  
WO/2020/223829A1
The invention relates to a method for updating plants for treating effluents from pulp and paper production processes, wherein salts are removed from the effluent in order to reuse the water and recover chemicals. The process comprises: ...  
WO/2020/207766A1
The invention relates to a process (100, 101, 102) for recovering alkaline solution (1) from a waste liquor (2) contaminated with hemicelluloses (5), and to a method (200, 300) for treating (210, 310) a starting material (203, 303) that ...  
WO/2020/188412A1
An improved lime mud recycling system including a camera proximate the kiln outlet imaging the granular lime and providing outlet images of the granular lime exiting the kiln, a processor analyzing the outlet images of the granular lime ...  
WO/2020/186350A1
Processes and systems for treating Kraft pulping foul condensate are provided. The processes comprise removing volatile compounds from the foul condensate to produce a resulting condensate and removing methanol from the resulting condens...  
WO/2020/185154A1
The present invention relates to a heat recovery system10, 11, 12 for recovering heat from flue gas generated by combustion at a biomass plant installation. The heat recovery system10, 11, 12 comprises a flue gas cooler 200 configured to...  
WO/2020/165504A1
According to an example aspect of the present invention, there is provided a method of replacing with sodium make-up chemicals sodium losses caused by outflows in a pulp mill which employs a kraft process for producing cellulosic pulp, w...  
WO/2020/161323A1
The present invention relates to a process for producing bio-oil comprising depolymerized lignin and a unit for producing bio-oil.  
WO/2020/160955A1
The invention discloses an improved continuous process for production of cellulose from glass-like feedstock, which is based on: (i) cooking of comminuted grass-like feedstock in white liquor which contains 0.5-2.0% w/w NaOH and 0.5-25.0...  
WO/2020/161313A1
The present invention relates to a process for producing bio-oil comprising depolymerized lignin using a rosin-containing oil.  
WO/2020/161397A1
The invention is directed to a method for producing a purified lignin salt from alkaline spent liquor from the chemical cooking of lignocellulosic raw materials. The method comprises the steps of decreasing the spent liquor pH to form a ...  
WO/2020/159735A1
A method is provided for controlling airflow into a furnace that employs a velocity type damper. In one embodiment, the method for controlling airflow may include engaging a velocity type damper to an air port opening of a furnace. The v...  
WO/2020/157385A1
The invention concerns a method for precipitating organic pollutants from aqueous liquids used in process stages for bleaching or de-lignifying pulp in a pulp mill. The method comprises the steps of adjusting the pH of an acid aqueous li...  
WO/2020/157386A1
According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interf...  
WO/2020/152388A1
A method and apparatus for protecting a furnace floor (102) of a black liquor recovery boiler, where a mixture is formed by mixing material with a fluid, and the furnace floor (102) is covered by said mixture by flowing the formed mixtur...  
WO/2020/152387A1
A method and apparatus for protecting a furnace floor (102) of a black liquor recovery boiler, where the furnace floor (102) is covered by a protective layer (210), the protective layer (210) being formed of a salt mixture comprising at ...  
WO/2020/153891A1
The invention relates to a process for treating vapours released from lignocellulose biomass during acid treatment at elevated temperature of the lignocellulose biomass. The process comprises condensing (3) the vapours to produce a conde...  
WO/2019/098899A8
The invention relates to a method for clarification of raw green liquor in a sedimentation tank. According to the invention is a part of dregs separated in the sedimentation tank recirculated back into the inflow of raw green liquor, and...  
WO/2020/121140A1
The present invention relates to fractionation of crude tall oil, which originates from the Kraft process black liquor. In the method,according to the present invention, simulated moving bed (SMB) chromatography is used to efficiently se...  
WO/2020/101563A1
The present disclosure relates to a method of producing monophenolicmonomers and furfural from lignocellulosic biomass beating the biomass in a solvent together with a zeolite based catalyst.  
WO/2020/101107A1
According to an embodiment of the present invention, a method for producing seaweed pulp for paper comprises the steps of: filtering impurities out of seaweed sludge to extract a raw pulp solution; stirring the raw pulp solution to pulp ...  
WO/2020/101239A1
A method for producing seaweed pulp for paper according to one embodiment of the present invention comprises the steps of: filtering impurities out of seaweed sludge to extract a raw pulp solution; stirring the raw pulp solution so as to...  
WO/2020/091651A1
The present invention describes a process for continuous fractionation of CTO (crude tall oil) to RTD (refined tall diesel), said process comprising: - when removing a stream of TOP (tall oil pitch) the CTO is fed through at least two ev...  
WO/2020/074095A1
The present invention provides a process for the production of hydrogen, comprising the following steps: (i) recovering methanol from black liquor, and (ii) subjecting the methanol to non-catalytic reforming to produce hydrogen, wherein ...  
WO/2020/074094A1
The present invention provides a process for the production of hydrogen, comprising the following steps: (i) recovering methanol from black liquor, and (ii) subjecting the methanol to catalytic reforming to produce hydrogen, wherein the ...  
WO/2020/053470A1
A method and apparatus for cleaning a black liquor recovery boiler, where a furnace floor of the boiler is washed by mixing wash water in a wash water pool formed on the floor by at least one mixing device in the wash water pool, and by ...  
WO/2020/016241A1
The present invention relates to a process for the controlling the sodium and sulfur levels in a pulp mill, comprising the steps of: a) providing a pulp mill stream comprising sulfide and having a total alkali concentration of at least 2...  
WO/2020/013752A1
Disclosed is a process for purifying lignin comprising metal cations. The process comprising the consecutive steps of: (a) providing lignin to be purified by acidifying black liquor, and subsequently separating the thereby formed raw lig...  
WO/2019/240659A1
The present invention relates to an assembly for optimizing concentrated filtrate (64') circulation in a Kraft process, the assembly comprising -a cold caustic extraction reactor (30) for separating hemicellulose from pulp, -a first CCE ...  
WO/2019/241408A1
Methods, processes, and systems for isolating lignin from black liquor in a more efficient and cost effective manner.  
WO/2019/240654A1
Embodiments herein relate to a system (200; 300; 400; 500) for obtaining methanol from foul condensate (101) of a pulping process. The system (200; 300; 400; 500) comprises a primary stripper (102) arranged to strip the foul condensate (...  
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...  
WO/2019/241413A1
Embodiments are directed to methods, processes, and systems for isolating lignin from black liquor in a more efficient and cost effective manner.  
WO/2019/227285A1
Provided are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.  
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/2019/158814A1
A method for the treatment of calcium-containing solid side stream material (1) obtainable from a chemical recovery process (2) of a chemical pulping process (3) is disclosed. The method comprises treating the calcium-containing solid si...  
WO/2019/153085A1
Novel meltable lignin compositions having tailored compatibilities, moisture/water-resistant adhesion characteristics, and low to medium glass transition temperatures (30 to 120oC) desirable for applications in the manufacturing of vario...  
WO/2019/129921A1
The invention relates to a method and a system for adjusting S/Na -balance of a pulp mill, wherein an aqueous pulp mill liquor containing sulphides is diverted into a bioreactor and oxidized by means of sulphur-oxidizing microbes, thereb...  

Matches 1 - 50 out of 3,238