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WO/2013/082735 |
A sectional pulping process for extracting fiber from plant materials by using a chemical mechanical pulping method comprises: fully soaking the material in black liquor of low-concentration NaOH solution, KOH solution, limewater or with...
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WO/2013/068092 |
The disclosure describes a process for the production of a cellulosic feedstock for enzymatic hydrolysis and/or a lignin fraction for chemicals production, characterized in that a) the raw material is lignocellulosic biomass b) the bioma...
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WO/2013/070969 |
The present disclosure provides a solid lignocellulosic hydrolysate and methods to prepare the solid lignocellulosic hydrolysate from a woody biomass or an herbaceous biomass. The solid lignocellulosic hydrolysate allows for ease of stor...
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WO/2013/066196 |
A continuous flow wood processing technology for extracting lignin from woody plant material and converting the delignified cellulosic residue to crude bio-oils is provided. Wood is chipped before processing starts and fed into a lignin ...
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WO/2013/049222 |
A process for making a fibrillated blend of lyocell and cellulose pulp fibers in which a blend of lyocell and cellulose pulp fibers is provided. The lyocell is from 25% to 75% of the total weight of the blend of lyocell and cellulose pul...
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WO/2013/044347 |
Disclosed is a method of producing various paper types from a nonwood fiber source such as a mixture of flax and wheat. The fiber source is chopped to an average length between 1 and 100 mm, wet-processed, dewatered, and heated in the pr...
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WO/2013/041207 |
The invention relates to a device for hydrothermally pulping dried, lignified lignocellulosic biomass which, in particular, is ball-shaped. Said device consists of a pulping vessel (13) that receives balls of biomass (5) and comprises a ...
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WO/2013/033386 |
A pulping process comprises using a high concentration of anthraquinone (AQ). The pulping process is capable of providing a pulp having low Kappa number with unexpectedly high strength. The pulping process can use wood or non-wood fibers...
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WO/2013/033405 |
One aspect of the invention relates to an article of manufacture made from a pulp composition comprising an ARF pulp. In one embodiment, the pulp composition made from agricultural renewable fibers (ARF) having low Kappa number with unex...
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WO/2013/032377 |
The invention is related to a method for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to increase carbohydrate stabilization and hence th...
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WO/2013/008135 |
Method for production of cellulose and hemicellulose fibers from lignocellulose biomass obtained from sugarcane leaves and buds by applying a process comprising the stages of: a) Diminishing the particle size of the lignocellulose biomas...
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WO/2013/000074 |
A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal c...
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WO/2013/000074 |
A biorefining method of processing a lignocellulosic biomass to separate lignin and hemicellulose from cellulose includes the steps of (a) reacting the biomass in an aqueous slurry having a pH less than 7, comprising a transition metal c...
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WO/2012/174429 |
This specification discloses a complete method to manufacture polyester articles from freshly harvested ligno-cellulosic biomass. The process steps include pretreating the biomass and the converting the lignin to one of several possible ...
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WO/2012/168513 |
Method for Kraft cooking of lignocellulose material with low-sulphide alkaline lyes in the production of pulp with direct incorporation of dihydroxyanthracene disodium saltinto the digester. The additive is obtained in parallel with the ...
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WO/2012/158075 |
The invention is related to an improved compact process for producing dissolving pulp in a prehydrolysis kraft cooking process. In order to avoid pitch problems with blocked withdrawal screens and to obtain a distinct ending of the prehy...
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WO/2012/147094 |
A method for extraction of black liquor from a horizontal tube continuous digester (8,9) is disclosed. The method comprises of passing a mixture of pulp and black liquor from the horizontal tube continuous digester (8,9) through a screw ...
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WO/2012/147094 |
A method for extraction of black liquor from a horizontal tube continuous digester (8,9) is disclosed. The method comprises of passing a mixture of pulp and black liquor from the horizontal tube continuous digester (8,9) through a screw ...
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WO/2012/137076 |
A method and system for pulp manufacturing used in connection with a kraft process includes a vertical pressure vessel operated in batch mode, a single-vessel or multi-vessel continuous digester, and other equipment for further processin...
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WO/2012/135001 |
Formulations and methods for papermaking are disclosed herein using one or more volatile debonders, where the volatile debonder forms a solution or an emulsion with water in a paper precursor, and where the volatile debonder is evaporabl...
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WO/2012/134358 |
The invention relates to a method and arrangement for adding treatment liquid to comminuted cellulose material, preferably wood chips, during the manufacture of chemical pulp in a continuous process. Said process using a down flow vessel...
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WO/2012/131665 |
A method of transforming a lignocellulose material comprises the steps of: a. combining a lignocellulose material with a solution containing hydrogen peroxide and a hydrogen peroxide stabiliser to produce a mixture that is at least 3% by...
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WO/2012/130957 |
The invention relates to a method for producing a cellulose-containing mass for forming a cellulose-containing composite material comprising following steps: (a) providing an input material comprising at least one cellulose-containing ra...
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WO/2012/128901 |
A prehydrolysis of wood chips or other lignocellulosic material in a vessel having a gaseous portion and a liquid portion. The vessel includes at least one stress relieving piece that inhibits overcompression of the lignocellulosic mater...
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WO/2012/110231 |
A method for processing lignocellulose comprises the step of contacting a lignocellulosic substrate with a biphasic liquid system in a reaction vessel, the biphasic liquid system comprising a first, aqueous phase and a second, organic ph...
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WO/2012/110231 |
A method for processing lignocellulose comprises the step of contacting a lignocellulosic substrate with a biphasic liquid system in a reaction vessel, the biphasic liquid system comprising a first, aqueous phase and a second, organic ph...
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WO/2012/102650 |
The invention relates to a continuous digester for producing pulp from comminuted cellulosic material. The digester has a cone diverter on a bottom scraper arranged in the bottom of the digester for assisting in out feed of pulp produced...
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WO/2012/085476 |
The invention relates to a process for the delignification and bleaching of paper pulp, comprising at least one step of bringing the paper pulp into contact with hydrogen peroxide and a molybdenum-based complex of formula (I): in which R...
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WO/2012/088451 |
A pump control system and a torque control valve are disclosed. In one embodiment, the torque control valve includes a sleeve, a spool disposed in the sleeve, and a piston rod disposed through the spool. The spool has a first recess area...
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WO/2012/087228 |
The invention discloses a method of controlling a pulping process wherein wood chips are conveyed to an impregnation vessel and/or to a digester where said wood chips are treated with a liquor comprising chemicals. According to the metho...
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WO/2012/080702 |
The present invention relates to a method for treating a lignocellulose biomass in order to dissolve the lignin therein, while the cellulose does not dissolve. The cellulose pulp obtained can be used to produce glucose. In addition the l...
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WO/2012/074923 |
The invention pertains to, for example, an improved sorbent and process for removing fermentation inhibitors such as furfural and/or HMF in microbial processes utilizing fermentable sugars obtained from biomass including, for example, in...
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WO/2012/071308 |
Biomass pretreatment using anhydrous ammonia was found to be effective in a static vessel when the ammonia can penetrate through the biomass particles or pieces in vapor state. To achieve this condition, total system moisture content is ...
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WO/2012/071312 |
Biomass pretreatment using anhydrous ammonia is effective in a static reactor vessel when the ammonia can penetrate through the biomass particles or pieces in vapor state, and when biomass is continuously fed and moved through the reacto...
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WO/2012/059643 |
The present invention is directed to a method for fractionating lignocellulosic material and its constituents. In particular, the method according to the present invention concerns dissolution of lignocellulosic material into a switchabl...
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WO/2012/059133 |
The method is used to recover chemicals, e.g., from wastewater (1) produced in the production of pulp. The wastewater (1) is conducted between ion-selective walls (3, 3'), and at the same time electric current flows through the wastewate...
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WO/2012/061085 |
A hydrolysis system comprising: (a) a reactor vessel including a sprinkler at an upper portion thereof and a drain; (b) a pump re-circulating a flow of an acidic reaction liquid from a selected height in said vessel to said sprinkler; (c...
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WO/2012/047832 |
Alcohols useful as fuel compositions are produced from biomass by: contacting the biomass with a cooking liquor containing (i) 1 to 20 wt %, based on the cooking liquor, of sodium hydroxide, (ii) optionally, 0 to 20 wt %, based on the co...
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WO/2012/019305 |
The present invention relates to a process for the conversion of a lignocellulosic feedstock involving acid pretreatment. The process comprises the steps of treating the lignocellulosic feedstock with alkali at a pH of between about 8.0 ...
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WO/2012/010749 |
The present invention relates to a method for converting lignocellulosic biomass into sugars, comprising at least three steps. The first step is a step of cooking the lignocellulosic biomass in the presence of at least one hydrated inorg...
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WO/2012/010749 |
The present invention relates to a method for converting lignocellulosic biomass into sugars, comprising at least three steps. The first step is a step of cooking the lignocellulosic biomass in the presence of at least one hydrated inorg...
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WO/2012/010750 |
The present invention relates to a method for converting lignocellulosic biomass into sugars, comprising at least three steps. The first step is a step of cooking the lignocellulosic biomass in the presence of at least one hydrated inorg...
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WO/2012/010750 |
The present invention relates to a method for converting lignocellulosic biomass into sugars, comprising at least three steps. The first step is a step of cooking the lignocellulosic biomass in the presence of at least one hydrated inorg...
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WO/2012/000093 |
The present disclosure provides an organosolv biorefining process. The present process comprises treating a lignocellulosic biomass in the presence of a solvent and under certain conditions to separate at least a part of the lignin from ...
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WO/2011/161326 |
The invention describes solutions containing cellulose and a method of dissolving lignocellulosic materials. In the method, the lignocellulosic material is contacted with a conjugate acid, formed by a strong organic base and a weaker aci...
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WO/2011/156708 |
A method to make pulp adapted for forming a corrugated medium, the method includes: cooking chips in a cooking vessel using a caustic carbonated pulping soda/caustic (SC) cooking liquor injected into the cooking vessel; fiberizing the ch...
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WO/2011/154967 |
A process of fractionation of biomass using aqueous ammonia for fractionation of biomass into lignin, cellulose and/or hemicellulose is provided herein. The process disclosed in the present invention is recovers lignin, cellulose and hem...
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WO/2011/150436 |
The present invention relates to a process for obtaining high-value products from lignocellulosic material, especially wood, comprising the steps of a) preliminary hydrolysis of the lignocellulosic material, b) removal of at least a port...
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WO/2011/138633 |
A method for pulp processing includes a cold caustic extraction stage in which the spent cold caustic solution and the spent liquid used to wash the extracted pulp are concentrated by an evaporation system. The concentrated liquid can be...
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WO/2011/138356 |
The present invention relates to a process for preparing synthesis gas and at least one organic, liquid or liquefiable value product, by a) providing a biomass starting material, b) subjecting the biomass starting material to digestion, ...
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