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WO/2015/101941A1 |
A process for producing desired compounds from biomass, including treating a lignocellulosic waste stream in some embodiments. The waste stream is conditioned under acidic or basic conditions, and is then treated in a catalytic reaction ...
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WO/2015/086772A1 |
A method for removing inorganic salts from an alcoholic basic lignin solution, comprising the steps of adding an acid to said solution whereby an alcoholic lignin solution is formed, and separating a precipitate comprising an inorganic p...
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WO/2015/078921A1 |
A method of extraction of cellulose, starch, sugars, proteins and plant hormones from the maize plant, which involves: a. selection of maize plants at lactic ripeness b. threshing of the plants at lactic ripeness c. separation, from the ...
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WO/2015/053704A1 |
A method for pyrifying raw methanol containing sulfurous compounds, wherein the method comprises a step of washing raw methanol with a non-polar organic solvent. The non-polar organic solvent is white mineral oil, white oil, mineral oil,...
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WO/2015/025076A1 |
The invention provides a method and a system for separating lignin from a lignin containing liquid medium, such as pulp mill black liquor, and treating the separated lignin. The method comprises at least the following steps: a) a precipi...
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WO/2015/021130A1 |
A process for treating a cellulosic material comprising extracting hemicellulose from the cellulosic material with an extractant comprising a cellulose solvent and a co-solvent to selectively extract hemicellulose therefrom and separatin...
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WO/2015/011275A1 |
The present invention relates to a process for obtaining cellulose or a mixture containing at least cellulose and at least lignocellulose from at least one substrate that is at least to some extent amenable to fermentation comprising at ...
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WO/2015/010179A1 |
A method of reducing chloride and potassium ion concentration in a pulp mill chemical recovery cycle, in which electrostatic precipitator ash is produced in a recovery boiler. A mixture (16) of the ash (10) and water (12) is separated in...
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WO/2015/013146A1 |
The invention provides methods and compositions for measuring the formation of scale within a process system. The method involves measuring changes in the cell fouling as reflected on the refraction index measurements of a liquid medium ...
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WO/2015/001186A1 |
Method for treating effluents and process waters in a pulp mill or a paper mill comprises: - introducing carbonated white liquor to an effluent or process water (3) containing dissolved calcium, - allowing calcium to be precipitated in f...
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WO/2014/201555A1 |
The present invention describes a process and system of producing methanol from methanol condensates. In a preferred embodiment the condensates are biomethanol condensates from chemical pulp mills and various waste sources used to produc...
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WO/2014/193289A1 |
The present invention describes a method for the treatment of spent pulping liquor for the removal and production of organic substances rich in lignin and recovering or recycling of aqueous cooking chemicals to pulp mill chemicals recove...
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WO/2014/179673A1 |
A process for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprisi...
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WO/2014/179702A1 |
A process for converting a starting material to a purified pulp material, comprising removing lignin from a starting material to form a wet pulp comprising at least 5 wt.% water, extracting hemicellulose from the wet pulp with an extract...
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WO/2014/175035A1 |
The present invention provides an aid for dewatering lime mud, said aid being capable of efficiently dewatering a muddy substance containing calcium carbonate, and containing a polyoxyethylene polyoxypropylene alkyl ether represented by ...
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WO/2014/159709A1 |
A wood pulping process includes producing weak black liquor and cooling the liquor as well as recovering heat therefrom by directing the weak black liquor through a spray film evaporator. A feed or condensate is directed into the spray f...
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WO/2014/159887A1 |
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids containing up to about 50% water by mass in a ...
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WO/2014/159892A1 |
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids in a digestion medium comprising a phenolic so...
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WO/2014/159877A1 |
Digestion of cellulosic biomass solids can be enhanced in the presence of a phenolic solvent. Methods for digesting cellulosic biomass solids can comprise providing cellulosic biomass solids in a digestion medium comprising water and an ...
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WO/2014/148993A1 |
The invention concerns a analytical method for measuring the soap content in black liquor. The analytical method comprises a first step where a defined amount of black liquor is arranged in analytical container, a second step where the b...
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WO/2014/148996A1 |
The present invention relates to a method and an arrangement where black liquor comprising cooking liquor that has been drained off is adapted to a mixed black liquor by addition of intermediate black liquor. The mixture is brought to a ...
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WO/2014/140643A1 |
The present invention relates to an improved 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 addi...
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WO/2014/131067A1 |
In a process for recausticizing green liquor in a sulphate or craft process for wood pulp production, in which a green liquor consisting of an aqueous solution of sodium carbonate as main component and sodium sulphide is admixed in a sla...
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WO/2014/132055A1 |
There is described a method of processing biomass which comprises the steps of: (i) processing biomass material in an aqueous system in the presence of an oxalic acid catalyst to produce a slurry; (ii) subjecting the slurry to an acidifi...
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WO/2014/118441A1 |
The subject of the invention is a new method to be used in connection with the recovery of pulping chemicals from the spent pulping liquor produced by kraft- type pulping at very high sulphidity. The sulphidity is most preferably in the ...
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WO/2014/116150A1 |
The present invention relates to a method for separation of lignin from original black liquor (BLIN) comprising a first precipitation stage (PR) for precipitation of lignin by a first acidification using acidifier AC, preferably using CO...
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WO/2014/094104A1 |
The present disclosure related to Organosolv processes for recovery of lignin derivatives from lignocellulosid feedstocks chosen from i) hardwood, ii) softwood, and iii) annual fibre. The lignin derivatives from each of these feedstocks ...
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WO/2014/096527A1 |
The invention relates to treating primary effluent of a pulp, paper or plywood mill at a waste water treatment plant by introducing exhaust gas comprising carbon dioxide (CO2) into the primary effluent comprising calcium (Ca2+) and arran...
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WO/2014/090609A1 |
The invention relates to a method for producing cellulose from material containing lignocellulose by means of sulfite decomposition or sulfate decomposition in the presence of a salt of dithionous acid, characterized in that the salt of ...
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WO/2014/086049A1 |
A method for removing active residual alkali from lime mud after alkali recovery and caustic wash, comprising the following steps: adding a dealkalizing agent to a causticized lime mud emulsion, the dealkalizing agent being chlorine, cal...
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WO/2014/077979A1 |
This invention provides methods for selecting and preparing boiler ash residue from wood waste boilers of pulp and paper mills for mercury adsorption. The selection and preparation are such that the boiler ash residue has a carbon conten...
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WO/2014/076361A1 |
The subject of the invention is a new method to be used in conjunction with a single- stage or multi-stage process for leaching ash originating from the recovery boiler of a pulp mill, particularly when the ash contains a significant amo...
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WO/2014/072586A1 |
The invention relates to a method for treating liquid flows at a chemical pulp mill comprising a brown stock preparation unit (20), a bleaching unit (30), a pulp drying machine (80), and a waste water treatment plant (50). The method com...
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WO/2014/070861A1 |
There are provided processes for recovering a "heart-cut" liquid-lignin fraction from a lignin-containing stream such as a black liquor stream from a paper making process or the crude lignin stream within a non-destructive biomass conver...
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WO/2014/070821A1 |
One example embodiment includes inserting a chemical reagent into a process stream that contains one or more lignins to form one or more modified lignins. The formed one or more modified lignins are different than the one or more lignins...
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WO/2014/060651A1 |
A solution containing lignocellulose material solvated in an ionic liquid that comprises anions and cations. The cation is selected from substituted phosphonium ions having Formula II, wherein P stands for a phosphonium ion and each R1, ...
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WO/2014/054815A1 |
[Problem] To provide an electrolysis method, and a device therefor, with which the influence of scale that adheres over time is prevented and a stable continuous operation is enabled in an electrolysis system wherein a white liquor used ...
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WO/2014/046893A1 |
Soak vessels for impregnating biomass with a liquid such as a dilute acid and methods for impregnating biomass are disclosed. In some embodiments, the soak vessel includes an impeller assembly with impellers that create a vortex to subme...
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WO/2014/046895A1 |
Methods for producing ethanol from cellulosic biomass and, in particular, methods for conditioning pretreated biomass are disclosed. In some embodiments, pretreated biomass is contacted with a cooling fluid in a flash vessel to cool the ...
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WO/2014/044911A1 |
An arrangement and a method in a soda recovery boiler, in a furnace (1 ) of which recovery boiler there are arranged screen tubes (7) and which recovery boiler comprises a second pass (9) in which is arranged at least one superheater (4'...
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WO/2014/018239A1 |
In a digester, wood chips and white liquor are combined and cooked under pressure to pulp the wood. This produces black liquor which is concentrated and burned in a recovery boiler. The recovery boiler produces ash that contains sodium, ...
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WO/2014/011089A1 |
The invention relates to a method and apparatus for obtaining strong white liquor and lime mud with low residual alkali content from causticized liquor. The first filter (FWL) receiving causticized liquor from causticizing vessels (CT1-C...
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WO/2013/187838A1 |
The invention concerns a method and equipment for the measurement of deflections of filter sectors in a disc filter. For a disc filter 1 that uses precoating technology, it is of the greatest importance that the distance between the scra...
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WO/2013/178885A1 |
The present invention relates to a method of and an apparatus for oxidizing white liquor by using the steps of allowing white liquor flow in a flow pipe (44) in a flow direction at a flow velocity, injecting oxidizing gas into white liqu...
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WO/2013/178608A1 |
The present document relates to processes for manufacturing pulp and more specifically to improved processes for manufacturing dissolving pulp. The processes have primarily been developed to be used in connection with large scale kraft p...
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WO/2013/171379A1 |
The present invention relates to a recovery boiler plant of a chemical pulp mill having a smelt spout area comprising smelt spouts that are connected to the lower part of the boiler for discharging the smelt from the boiler into a dissol...
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WO/2013/156668A1 |
The present invention relates to a method of and arrangement for intensifying evaporation, whereby secondary vapor is formed from a solution being evaporated. The evaporation is carried out in at least one evaporator apparatus provided w...
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WO/2013/144438A1 |
The invention relates to a method for recovering heat from flue gas generated at a power plant or biomass-based plant, such as a pulp mill, and for concentrating a liquid at a multiple-effect evaporation plant having a plurality of evapo...
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WO/2013/135485A1 |
The invention relates to a method for producing water-insoluble lignin agglomerates from the waste lye of a process for obtaining cellulose. According to the invention, the method comprises the following steps: 1. Carrying out a granulat...
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WO/2013/137790A1 |
The present invention relates to a method for separation of lignin from original black liquor (BLIN) comprising a first precipitation phase (PR1/PR2) for precipitation of lignin by a first acidification using acidifier, CO2, at alkaline ...
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