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WO/2012/049054 |
The invention concerns a process for producing bioethanol comprising the steps of pretreatment (consisting in destructuring the lignocellulosic vegetable raw material by placing it in the presence of a mixture containing formic acid, ace...
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WO/2012/049530 |
The invention relates to techniques for utilizing the lignocellulosic wastes from palm oil production, primarily the empty fruit bunches (EFB) remaining after removal of the oil-bearing fruits. The utilization method is based on exploiti...
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WO/2012/042498 |
This specification discloses an improved method for conducting the removal of C5 xylan based sugars from biomass. The improved method involves a series of soakings and washings of the biomass as opposed to conducting one soaking and wash...
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WO/2012/042497 |
The process is for pretreating a lignocellulosic biomass feedstock and comprises: soaking a lignocellulosic biomass feedstock wherein the soaked biomass is present as a mixture with a free liquid and wherein the free liquid comprises at ...
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WO/2012/026856 |
The invention concerns a method, system and a withdrawal screen section for the impregnation of chips during the manufacture of chemical pulp. Chips are both steamed and impregnated in a low pressure impregnation vessel 3, using pressuri...
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WO/2012/005643 |
The invention concerns a method, system and a withdrawal screen section for the impregnation of chips during the manufacture of chemical pulp. Chips are both steamed and impregnated in a low pressure impregnation vessel 3, using pressuri...
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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/2011/142426 |
Disclosed is a method that is for producing a saccharification pre-processed material and that obtains a saccharification pre-processed material from which lignin has been sufficiently dissociated when preprocessing lignocellulose-based ...
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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/2011/138634 |
A method for pulp processing used in connection with a pre-hydrolysis kraft process (PHKP) includes adding wood chips or similar material to a reaction vessel, performing pre-hydrolysis, and neutralizing the mixture with a first quantity...
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WO/2011/093424 |
Disclosed is a highly efficient process for producing a pulp. Specifically disclosed is a process for producing a pulp, comprising applying a shock wave to a cellulose material.
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WO/2011/092378 |
The present solution is based on using one or more ligninolytic or pectinolytic enzymes or one or more enzymes having an otherwise decomposing effect on the structure of wood for preprocessing wood chips in an impregnating device (I2) fo...
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WO/2011/088973 |
The invention relates to a method for producing wood pulp having an impregnation phase, a grinding phase (28) and a bleaching phase (14), in particular a peroxide bleaching phase. The invention is characterized in that an acid washing pr...
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WO/2011/080155 |
The present invention relates to a method for producing a hydrolysate of from lignocellulose- containing material, comprising pre-treatment with low temperature, hydrolysis and fermentation, wherein hydrolysis is performed by contacting ...
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WO/2011/080131 |
A method of pre-treating a cellulosic material before hydrolysis is provided. The method comprises the steps of: impregnating the cellulosic material with a reactive water-soluble gas, such as sulphur dioxide (SO2) or carbon dioxide (CO2...
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WO/2011/071386 |
The invention is related to a method for processing biomass derived from plants or animals, comprising the steps of : a. pre treating said material with an aqueous solution of acid or base; b. subsequently passaging saturated or super he...
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WO/2011/069106 |
The present invention is a process for treating a feedstock comprising holocellulose. The process comprises mixing the feedstock with a solution comprising cellulose binding domains to form a mixture. The mixture is then subjected to con...
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WO/2011/063800 |
The invention relates to a method for producing refiner wood pulps, wherein the wood chips were irradiated with hydrogen sulfite and high-energy radiation after slight impregnation and then defibred by means of refiners. The wood-chip-ir...
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WO/2011/063800 |
The invention relates to a method for producing refiner wood pulps, wherein the wood chips were irradiated with hydrogen sulfite and high-energy radiation after slight impregnation and then defibred by means of refiners. The wood-chip-ir...
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WO/2011/053203 |
The invention relates to a method and arrangement for steaming and impregnating wood chips in a single down flow vessel. A first upper volume of chips is established above a liquid level (LIQ_LEV) in the vessel, wherein steaming takes pl...
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WO/2011/035381 |
A method to produce a fibre product from a plant material comprising the steps of harvesting the plant material, size reduction of the plant material, subjecting the plant material to an extraction/diffusion step to separate the sugar co...
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WO/2011/028554 |
The present invention generally relates to processes for production of ethanol from cellulosic biomass. The present invention also relates to production of various co-products of preparation of ethanol from cellulosic biomass. The presen...
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WO/2011/021968 |
The invention relates to a method and arrangement for adding treatment liquor 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/2011/006244 |
An apparatus for heating a cellulosic feedstock prior to hydrolysis is disclosed. The apparatus comprises a pressurizable treatment chamber, a mixing and conveyance member configured to deaggregate the cellulosic feedstock and mix the ce...
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WO/2011/007369 |
This specification describes a process to separate lignin from an aqueous mixture derived from a biomass feedstock, wherein the separation is done at or above critical temperature, usually above 60°C.
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WO/2010/147118 |
An apparatus and process for pulp production are provided with which a pulp can be produced in an environment having the atmospheric pressure and having a temperature lower than in the kraft process and the sulfite process. The apparatus...
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WO/2010/139589 |
The present invention relates to a process for preparing a high-yield pulp comprising a) treating a lignocellulose containing material chemically by means of an oxidising system comprising at least one non-enzymatic oxidant and an activa...
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WO/2010/131016 |
A method for preparing an aqueous suspension comprising microfibrillated cellulose and inorganic particulate material, the method comprising a step of microfibrillating a fibrous substrate comprising cellulose in an aqueous environment i...
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WO/2010/104725 |
The invention provides a composition of matter and a method, which enhance the process of mechanically pulping paper precursors. The composition of matter includes a small quantity of a reducing agent and a source of alkali. When added t...
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WO/2010/095982 |
The invention concerns an arrangement and a method for the steam pre-treatment of chips during the production of cellulose pulp. With the aim of avoiding the blow-through of gases in the steam pre-treatment vessel (1) and in this way pre...
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WO/2010/093832 |
Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. For example, systems are described that can convert feedstock materials to a sugar solution, w...
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WO/2010/081227 |
A process for the pretreatment of lignocellulosic biomass, in particular during the production of ethanol from biomass. The process including a cooking step where the biomass is exposed to steam at elevated temperatures and pressures for...
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WO/2010/080462 |
Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of elemental sulfur and optionally one or more alkylamine and/or one or more additional nucleophile to fragment and extract lignin. Pretrea...
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WO/2010/075405 |
A process is disclosed for preparing biomass particles for thermolytic or enzymatic conversion whereby the biomass particles having a moisture content of at least 20% are subjected to Hash healing. The flash heating may be preceded by on...
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WO/2010/075405 |
A process is disclosed for preparing biomass particles for thermolytic or enzymatic conversion whereby the biomass particles having a moisture content of at least 20% are subjected to flash heating. The flash heating may be preceded by o...
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WO/2010/069151 |
A multi-stage process for extracting cellulose from plant comprises the following steps: firstly impregnating the plant with dilute alkali; steaming under increased pressure and then beating and washing the pulp, and thus obtaining cellu...
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WO/2010/066026 |
Impregnating or spraying softwood chips in a solution containing an appropriate concentration of alkaline earth metal ions selected from the group consisting of calcium ions, barium ions and strontium, preferably calcium ions, at room te...
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WO/2010/053464 |
The invention relates to the cellulose paper industry. The method for producing a fibrous semifinished product from cellulose-containing materials consists in supplying starting raw material, conveying cooking liquor to the starting raw ...
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WO/2010/046532 |
The present invention relates to a process for the production of xylose and dissolving pulp from xylan-containing biomass, such as hardwood. The invention is based on prehydrolysis of the xylan-containing biomass with SO2 in specified co...
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WO/2009/140808 |
A process and system for pulping are provided, which are environmental protective, energy saving, circulating and green. The process comprises the following steps: cutting, dust exhausting, fibrillating, cooking and bleaching integration...
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WO/2009/136000 |
A process for the preparation of prehydrolyzed pulp in a digester from lignin-containing cellulosic material is disclosed. According to the present invention the cellulosic material is prehydrolyzed in a first steam phase at a first pres...
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WO/2009/134764 |
Methods of producing cellulosic or lignocellulosic materials for use in papermaking include treating a cellulosic or lignocellulosic dry feedstock having a first average molecular weight with ionizing radiation, and controlling the dose ...
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WO/2009/134764 |
Methods of producing cellulosic or lignocellulosic materials for use in papermaking include treating a cellulosic or lignocellulosic dry feedstock having a first average molecular weight with ionizing radiation, and controlling the dose ...
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WO/2009/117402 |
Methods of pretreating comminuted cellulosic material with an acidic solution and then a carbonate-containing solution to produce a pretreated cellulosic material are provided. The pretreated material may then be further treated in a pul...
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WO/2009/117402 |
Methods of pretreating comminuted cellulosic material with an acidic solution and then a carbonate-containing solution to produce a pretreated cellulosic material are provided. The pretreated material may then be further treated in a pul...
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WO/2009/105928 |
A process of joint production of fuel ethanol, electricity and paper pulp by fractionation conversion of Pennisetum purpureum Schum, which includes steam blasting the Pennisetum purpureum Schum segments with a steam blasting device, obta...
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WO/2009/108773 |
A system has been developed for pretreating cellulosic biomass feed stock including: a first pressurized reactor receiving the feed stock, wherein the feed stock undergoes hydrolysis in the first pressurized reactor; a sealing device hav...
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WO/2009/108773 |
A system has been developed for pretreating cellulosic biomass feed stock including: a first pressurized reactor receiving the feed stock, wherein the feed stock undergoes hydrolysis in the first pressurized reactor; a sealing device hav...
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WO/2009/097877 |
The invention relates to an arrangement and a method for diluting a pulp slurry (1) in a diluting device (11) and adding, by means of at least one respective feeding device (2, 3), several fluids into the flow of the pulp slurry (1) in a...
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WO/2009/097878 |
The invention relates to an arrangement for adding, by means of at one feeding device (2, 3), at least one fluid into the flow of a pulp slurry (1) in a machine used for producing and/or refining a paper web, cardboard web, tissue web, o...
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