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1.发明公开公开(公告)号：US20240247081A1
公开(公告)日：2024-07-25
申请号：US18437450
申请日：2024-02-09
IPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/00 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C9/00 , D21C9/10 , D21C11/00 , D21H11/18
CPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/0057 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C5/005 , D21C9/002 , D21C9/007 , D21C9/10 , D21C11/0007 , D21H11/18 , C12P2201/00 , C12P2203/00 , Y02E50/10 , Y02P40/40
摘要： Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.
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公开(公告)号：US11982051B2
公开(公告)日：2024-05-14
申请号：US17807179
申请日：2022-06-16
申请人： SixRing Inc.
摘要： A process to delignify biomass, said process comprising the steps of:
providing a vessel;
providing biomass comprising lignin, hemicellulose and cellulose fibers into said vessel;
providing a aqueous acidic composition comprising a sulfuric acid component;
providing a peroxide component;
exposing said biomass to said sulfuric acid component and peroxide component, creating a reaction mass;
allowing said sulfuric acid component and peroxide component to come into contact with said biomass for a period of time sufficient to a delignification reaction to occur and remove over 90 wt % of said lignin and hemicellulose from said biomass; and
controlling the temperature of the delignification reaction to maintain it below 55° C.-
3.发明公开公开(公告)号：US20240141587A1
公开(公告)日：2024-05-02
申请号：US18408955
申请日：2024-01-10
发明人： Timothy Wagler , Chester Gunn
CPC分类号： D21B1/36 , D21B1/02 , D21B1/021 , D21B1/026 , D21B1/06 , D21C1/04 , D21C3/04 , D21C3/22 , D21C9/18 , D21H11/08 , C05F5/002
摘要： Disclosed herein is a process, comprising combining one or more additives with a feedstock to obtain a first mixture, the feedstock comprising a fibrous material and water, the fibrous material comprising lignin, cellulose, and hemicellulose; and conditioning the first mixture to obtain a liquid product and a dry pulp product. Also disclosed herein are condition processes and machines for use with the same. Also disclosed herein are liquid products, dry pulp products, and fibrous pellets made by the disclosed processes, and methods of using the same.
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公开(公告)号：US11932706B2
公开(公告)日：2024-03-19
申请号：US17163738
申请日：2021-02-01
IPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/00 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C9/00 , D21C9/10 , D21C11/00 , D21H11/18
CPC分类号： C08B15/08 , C07G1/00 , C08B15/00 , C08B15/02 , C08B37/0057 , C08H8/00 , C08L1/02 , C12P7/04 , C12P7/10 , C12P7/14 , C12P7/16 , C12P7/28 , C12P7/46 , C12P7/56 , C12P19/02 , C12P19/14 , C13K1/02 , D21C3/04 , D21C3/06 , D21C3/20 , D21C5/00 , D21C5/005 , D21C9/002 , D21C9/007 , D21C9/10 , D21C11/0007 , D21H11/18 , C12P2201/00 , C12P2203/00 , Y02E50/10 , Y02P40/40
摘要： Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and/or nanocrystals. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.
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公开(公告)号：US11866753B2
公开(公告)日：2024-01-09
申请号：US17329960
申请日：2021-05-25
申请人： Inbicon A/S
CPC分类号： C12P19/14 , C12P7/10 , C12P19/02 , C13K1/02 , C13K13/002 , D21C1/04 , D21C3/04 , C12P2201/00 , Y02E50/10
摘要： The invention relates, in general, to methods of processing Lignocellulosic biomass to fermentable sugars and to methods that rely on hydrothermal pretreatment. Xylose monomer yields comparable to those achieved using two-stage pretreatments can be achieved from soft Lignocellulosic biomass feedstocks by pretreasting to very low severity in a single-stage pressurized hydrothermal pretreatment, followed by enzymatic hydrolysis to release xylose retained in the solid state. In some embodiments, pretreated biomass is separated into a solid fraction and a liquid fraction, the solid fraction subjected to enzymatic hydrolysis, and the separated liquid fraction subsequently mixed with the hydrolysed solid fraction.
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公开(公告)号：US20230323597A1
公开(公告)日：2023-10-12
申请号：US17978444
申请日：2022-11-01
发明人： Yongchao Zhang , Menghua Qin , Yingjuan Fu
摘要： A method for separating biomass components by a ternary system, which relates to a technical field of biomass separation, and includes the following steps of: cooking and separating a biomass raw material by using a cooking liquor consisting of organic acid, small aromatic nucleophilic organic molecule and hydrogen peroxide to obtain solid residue and extracting solution, washing and screening the solid residue to obtain paper pulp, and separating and extracting lignin and/or hemicellulose from the extracting solution. This cooking system could effectively minimize the content of residual lignin and other compounds with chromophore groups in the obtained pulp, directly producing the high-whiteness pulp with excellent performance without additional bleaching process. In addition, the hemicellulose saccharides and high-activity lignin can be also obtained, so that the method has an important significance for realizing high value and industrialization of biomass resource utilization.
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公开(公告)号：US11624152B2
公开(公告)日：2023-04-11
申请号：US16969700
申请日：2018-12-13
申请人： BIOEB
发明人： Michel Delmas
IPC分类号： D21C3/00 , D21C9/02 , D21C11/00 , C08H7/00 , D21C9/18 , D21H11/02 , C08B37/00 , C10J3/72 , D21C3/20 , D21C3/04
摘要： A low energy production process for producing paper pulp from lignocellulosic biomass, the process comprising the following successive steps: a) extracting lignins and hemicellulose from lignocellulosic biomass by putting at least one solid lignocellulosic raw material in the presence of a mixture, composed only of water and of formic acid, at atmospheric pressure and under controlled conditions of reaction temperature between ambient temperature and the reflux temperature of the mixture at atmospheric pressure, preferably between 80° C. and 100° C., with a weight ratio of the at least one solid lignocellulosic raw material/liquid mixture comprised between 1/1 and 1/15, and for a determined period of time of reaction; and b) separating, at atmospheric pressure and at the reaction temperature, a solid fraction, constituting raw paper pulp, from an organic phase containing in solution at least the starting formic acid and water mixture, solubilized monomeric and polymeric sugars, lignins.
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公开(公告)号：US20230099096A1
公开(公告)日：2023-03-30
申请号：US18062821
申请日：2022-12-07
发明人： Timothy Wagler , Chester Gunn
摘要： Disclosed herein is a process, comprising combining one or more additives with a feedstock to obtain a first mixture, the feedstock comprising a fibrous material and water, the fibrous material comprising lignin, cellulose, and hemicellulose; and conditioning the first mixture to obtain a liquid product and a dry pulp product. Also disclosed herein are condition processes and machines for use with the same. Also disclosed herein are liquid products, dry pulp products, and fibrous pellets made by the disclosed processes, and methods of using the same.
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公开(公告)号：US20230002972A1
公开(公告)日：2023-01-05
申请号：US17837144
申请日：2022-06-10
IPC分类号： D21H11/16 , D21C1/02 , D21C3/04 , D21C3/20 , D21C9/00 , D21H11/18 , D21H27/40 , D21H11/02 , D21H11/08
摘要： The present invention provides a pulp product (e.g., paper) comprising cellulose and nanocellulose, wherein the nanocellulose is derived from the cellulose in a mechanical and/or chemical step that is separate from the main pulping process. The pulping process may be thermomechanical pulping or hydrothermal-mechanical pulping, for example. The pulp product is stronger and smoother with the presence of the nanocellulose. The nanocellulose further can function as a retention aid, for a step of forming the pulp product (e.g., in a paper machine). Other embodiments provide a corrugated medium pulp composition comprising cellulose pulp and nanocellulose, wherein the nanocellulose includes cellulose nanofibrils and/or cellulose nanocrystals and the nanocellulose may be hydrophobic. The nanocellulose improves the strength properties of the corrugated medium. In some embodiments, the cellulose pulp is a GreenBox+® pulp and the nanocellulose is derived from the AVAP® process.
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公开(公告)号：US20220412001A1
公开(公告)日：2022-12-29
申请号：US17807179
申请日：2022-06-16
申请人： SixRing Inc.
摘要： A process to delignify biomass, said process comprising the steps of: providing a vessel; providing biomass comprising lignin, hemicellulose and cellulose fibers into said vessel; providing a aqueous acidic composition comprising a sulfuric acid component; providing a peroxide component; exposing said biomass to said sulfuric acid component and peroxide component, creating a reaction mass; allowing said sulfuric acid component and peroxide component to come into contact with said biomass for a period of time sufficient to a delignification reaction to occur and remove over 90 wt % of said lignin and hemicellulose from said biomass; and controlling the temperature of the delignification reaction to maintain it below 55° C.
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