Entries |
Document | Title | Date |
20120006320 | METHOD FOR PRODUCING ETHANOL AND CO-PRODUCTS FROM CELLULOSIC BIOMASS - 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 present invention further relates to improvements in one or more aspects of preparation of ethanol from cellulosic biomass including, for example, improved methods for cleaning biomass feedstocks, improved acid impregnation, and improved steam treatment, or “steam explosion.” | 01-12-2012 |
20120103324 | PROCESS FOR PRODUCING NON-CRYSTALLINE CELLULOSE - The invention relates to a highly productive process for producing decrystallized cellulose which includes treating a cellulose-containing raw material by means of a mill, wherein the cellulose-containing raw material has a cellulose content of a residue obtained by removing water from the cellulose-containing raw material of 20 mass % or more, has a cellulose I-type crystallinity of cellulose more than 33% as calculated from the following formula (1): | 05-03-2012 |
20120186580 | Preservation of Biomass Material Comprising Polysaccharide and Method for Extracting Polysaccharide from Preserved Biomass Material - A process for preserving biomass material comprising polysaccharide, the process comprising contacting the biomass material with a preserving composition comprising alcohol to form a preserved biomass material and storing the preserved biomass material for at least 24 hours. At least a substantial amount of the polysaccharide may be extracted from the preserved biomass material with yields comparable to or improved over extraction from fresh non-preserved biomass material. | 07-26-2012 |
20120325202 | PROCESS FOR THE TREATMENT OF LIGNOCELLULOSIC BIOMASS - A process for the treatment of biomass to render structural carbohydrates more accessible and/or digestible using concentrated ammonium hydroxide with or without anhydrous ammonia addition, is described. The process preferably uses steam to strip ammonia from the biomass for recycling. The process yields of monosaccharides from the structural carbohydrates are good, particularly as measured by the enzymatic hydrolysis of the structural carbohydrates. The monosaccharides are used as animal feeds and energy sources for ethanol production. | 12-27-2012 |
20130087140 | DEWATERING BIOMASS MATERIAL COMPRISING POLYSACCHARIDE, METHOD FOR EXTRACTING POLYSACCHARIDE FROM BIOMASS MATERIAL, AND DEWATERED BIOMASS MATERIAL - A process for dewatering biomass material comprising polysaccharide and water. The process comprises wetting the biomass material with a wetting composition comprising an alcohol to form a biomass slurry comprising wetted biomass material and a liquid component, mechanically separating a portion of the liquid component from the biomass slurry, and mechanically separating at least a portion of the water from the wetted biomass material. A process for extracting polysaccharide from the biomass material and a dewatered biomass material are also disclosed. | 04-11-2013 |
20130098356 | METHODS OF USING CELLULASE FOR REDUCING THE VISCOSITY OF FEEDSTOCK - The invention provides methods for treatment of feedstock to reduce the relative viscosity and promote release of fermentable sugars. | 04-25-2013 |
20130139812 | METHOD FOR LIQUEFYING BIOMASS - The disclosure provides a method for liquefying biomass, including: (a) mixing a solid organic ammonium salt containing single nitrogen with at least one organic compound which is capable of forming a hydrogen bond with the solid organic ammonium salt to form a first mixture; (b) heating the first mixture until the first mixture becomes a solution; (c) mixing a biomass and an acid catalyst with the solution to form a second mixture; and (d) heating the second mixture to make the biomass therein convert into a liquefied product. | 06-06-2013 |
20130146049 | PROCESS FOR RECOVERING SUGARS FROM A PRETREATMENT STREAM OF LIGNOCELLULOSIC BIOMASS - 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 least one dissolved compound selected from the group consisting of glucose, xylose and respective oligomers thereof, washing the mixture of the soaked biomass and the free liquid, wherein at least a portion of the free liquid containing at least one dissolved compound selected from the group consisting of glucose, xylose and respective oligomers thereof is separated from the soaked biomass to create a soaked washed biomass and at least one free liquid stream, compressing the soaked biomass to create a released liquid, separating the released liquid from the soaked biomass, and keeping at least a portion of the released liquid separate from any free liquid. | 06-13-2013 |
20130327319 | Process for the Mechanical or Mechano-Chemical Pretreatment of Biomass - The present invention concerns a process for the mechanical or mechano-chemical treatment of biomass, wherein a mixture containing the biomass and optional further chemicals is pressed through the openings of one or more compactor one or more times. The process can be operated in a continuous manner by using more than one compactor and more than one compacting cycle, whereby the multiple compactors are operated sequentially. | 12-12-2013 |
20140251318 | LIGNIN SEPARATION FROM LIGNOCELLULOSIC HYDROLIZATES AND ACIDIFIED PULP MILL LIQUORS - The invention provides methods and compositions for the removal of lignin from water suspensions originating from lignocellulosic feedstocks. The method involves adding coagulants and flocculants to the suspension. While hydrolysis does remove some lignin, the pitch in many feedstocks prevents the hydrolysis from coming into contact with all of the lignin or so effectively blocks it that the lignin can re-condense. This is especially the case with low lignin grass based lignocellulosic feedstock. But wWith the addition of the inventive coagulants and flocculants, a phase separation substantially accelerates and lignin forms flocs that forms that physically separates the lignin from the pitch and the cellulose thereby makes removal the lignin from aqueous suspensions by decanting and filtration effective and easy. | 09-11-2014 |
20140311481 | Novel compositions and methods useful for ionic liquid treatment of biomass - The present invention provides for novel compositions and methods for recycling or recovering ionic liquid used in IL pretreated cellulose and/or lignocellulosic biomass (LBM). | 10-23-2014 |
20140331992 | PROCESS FOR RECOVERING SACCHARIDES FROM CELLULOSE HYDROLYSIS REACTION MIXTURE - A method is disclosed for recovering saccharide monomers and/or oligomers from a reaction mixture. The reaction mixture may further comprise water and a molten salt hydrate. | 11-13-2014 |
20150007809 | Method Of Digesting Lignocellulosic Material - A method of digesting lignocellulosic material includes the steps of providing the lignocellulosic material and a caustic composition having a pH of at least about 10. The caustic composition includes water, an alkaline- or alkaline earth-metal hydroxide, and up to about 1 percent by weight based on a total weight of the composition of a branched digestion additive. The branched digestion additive has the structure: wherein A is at least one alkyleneoxy group and each alkyleneoxy group has from 2 to 4 carbon atoms, n is 0 or 1, B is a branched aliphatic hydrocarbon group having from 8 to 15 carbon atoms, X is H or B-0-(A) | 01-08-2015 |
20150027438 | METHOD OF TRANSPORTING VISCOUS SLURRIES - Methods are disclosed for transporting viscous slurries, especially at high pressures, using fluid injection, especially steam injection. | 01-29-2015 |
20150068516 | PROCESS FOR TREATING BIOMASS - this invention is directed to a process for treating biomass. The biomass is treated with a biomass swelling agent within the vessel to swell or rupture at least a portion of the biomass. A portion of the swelling agent is removed from a first end of the vessel following the treatment. Then steam is introduced into a second end of the vessel different from the first end to further remove swelling agent from the vessel in such a manner that the swelling agent exits the vessel at a relatively low water content. | 03-12-2015 |
20150315744 | PROCESS FOR TREATING BIOMASS - This invention is directed to a process for treating biomass. The biomass is treated with a biomass swelling agent within the vessel to swell or rupture at least a portion of the biomass. A portion of the swelling agent is removed from a first end of the vessel following the treatment. Then steam is introduced into a second end of the vessel different from the first end to further remove swelling agent from the vessel in such a manner that the swelling agent exits the vessel at a relatively low water content. | 11-05-2015 |
20160152737 | TWO STAGE CONTINUOUS STEAM PRE-TREATMENT OF LIGNOCELLULOSIC BIOMASS | 06-02-2016 |