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公开(公告)号：US20240327877A1
公开(公告)日：2024-10-03
申请号：US18625942
申请日：2024-04-03
Applicant: Alliance for Sustainable Energy, LLC , Massachusetts Institute of Technology , Wisconsin Alumni Research Foundation , UT-Battelle, LLC
Inventor： Gregg Tyler BECKHAM , Chad Thomas PALUMBO , Allison Jean ZIMONT WERNER , Kevin P. SULLIVAN , Yuriy ROMÁN , Shannon Scot STAHL , Adam Michael GUSS , Jay D. HUENEMANN , Thomas David MAND , Kathryn MAINS , Austin Lee CARROLL
CPC classification number: C12P7/18 , C12N1/205 , C12P2201/00 , C12R2001/40
Abstract: Described herein is a chemical process for the conversion of lignocellulosic biomass into muconic acid which is useful for the generation of plastics and polymers. The described methods utilize catalytic chemical reactions and biological processes to facilitate the conversion, while increasing yields and reducing energy requirements.
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2.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
Applicant: GranBio Intellectual Property Holdings, LLC
Inventor： Kimberly NELSON , Theodora RETSINA , Vesa PYLKKANEN , Ryan O'CONNOR
IPC: 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 classification number: 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
Abstract: 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：US12043854B2
公开(公告)日：2024-07-23
申请号：US18018303
申请日：2021-12-11
Applicant: GranBio Intellectual Property Holdings, LLC
Inventor： Ryan Zebroski
CPC classification number: C12P19/02 , C08H8/00 , C12N9/2437 , C12P19/14 , C12P2201/00 , C12P2203/00
Abstract: In some variations, a process for converting a biomass feedstock into a pretreated biomass material comprises: providing a biomass feedstock containing cellulose, hemicellulose, and lignin; introducing the biomass feedstock and a recycled vapor stream to a biomass-heating unit, thereby generating a heated biomass stream at a first temperature, wherein the recycled vapor stream is at a first pressure of at least atmospheric pressure; feeding the heated biomass stream to a biomass digestor operated at a second temperature and a second pressure to pretreat the biomass feedstock, thereby generating a digested stream comprising a solid-liquid mixture and a digestor vapor, wherein the second temperature is higher than the first temperature, and wherein the second pressure is higher than the first pressure; recycling at least a portion of the digestor vapor to the biomass-heating unit; and recovering or further processing the solid-liquid mixture as a pretreated biomass material. Many variations are disclosed.
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公开(公告)号：US20240124903A1
公开(公告)日：2024-04-18
申请号：US18318424
申请日：2023-05-16
Applicant: The Regents of the University of California
Inventor： Zhiliang Fan
CPC classification number: C12P7/10 , C12P1/02 , C12P2201/00
Abstract: The present disclosure provides methods for producing fuels, such as biofuels, and commodity chemicals. In some embodiments, the methods comprise pretreating cellulosic biomass with a sugar acid. In some embodiments, the methods further comprise recycling sugar acids that are produced during fermentation for use in the subsequent pretreatment of cellulosic biomass. In some embodiments, the methods further comprise utilizing one or more components produced during pretreatment for subsequent fermentation. Fuels and commodity chemicals produced according to the methods of the present invention are also provided herein.
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公开(公告)号：US11946090B2
公开(公告)日：2024-04-02
申请号：US17267590
申请日：2019-05-29
Applicant: VALMET AB
Inventor： Örjan Ahlgren , Johan Carlsson , Anders Löfström , Patrik Pettersson
IPC: C12P7/10
CPC classification number: C12P7/10 , C12P2201/00
Abstract: According to the present invention, there is provided a treatment process system for biomass material and methods for such system. The system comprises a first dewatering stage arranged to receive biomass material, to remove liquid from the biomass material, and to feed the biomass material forward in the process. Further, the system includes a water treatment stage arranged to collect the removed liquid and an addition stage located downstream said dewatering stage and operatively coupled to the first dewatering stage. The addition stage is arranged to receive the de-watered biomass material, wherein the addition stage includes inlets for adding acid containing solution into the addition stage. A reactor stage arranged to receive the biomass material treated in the addition stage and to perform a pre-hydrolysis process to the biomass material. A filtrate feeding arrangement is arranged to feed liquid from the filtrate tank to the reactor stage.
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Patent Agency Ranking
公开(公告)号：US11932706B2
公开(公告)日：2024-03-19
申请号：US17163738
申请日：2021-02-01
Applicant: GranBio Intellectual Property Holdings, LLC
Inventor： Kimberly Nelson , Theodora Retsina , Vesa Pylkkanen , Ryan O'Connor
IPC: 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 classification number: 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
Abstract: 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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7.发明公开公开(公告)号：US20240011063A1
公开(公告)日：2024-01-11
申请号：US18256004
申请日：2021-12-09
Applicant: Sekab E-Technology AB
Inventor： Adnan Cavka , Elias Sundvall
IPC: C12P19/04
CPC classification number: C12P19/04 , C12P2201/00
Abstract: The present disclosure generally relates to a controlled method for pretreatment and/or enzymatic hydrolysis of a lignocellulosic material. The method comprises first pretreating the lignocellulosic material suboptimally, and then subjecting the material to mechanical refining.
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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
Applicant: Inbicon A/S
Inventor： Jan Larsen , Niels Nielsen Poulsen , Martin Dan Jeppesen , Kit Kellebjerg Mogensen
CPC classification number: C12P19/14 , C12P7/10 , C12P19/02 , C13K1/02 , C13K13/002 , D21C1/04 , D21C3/04 , C12P2201/00 , Y02E50/10
Abstract: 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：US11821047B2
公开(公告)日：2023-11-21
申请号：US15932340
申请日：2018-02-16
Applicant: Apalta Patents OÜ
Inventor： Scott Tudman , Sharon Samjitsingh
CPC classification number: C13K1/02 , C12M45/02 , C12M45/03 , C12M45/20 , C12P7/54 , C12P19/02 , C12P19/14 , C13K13/002 , C12P2201/00
Abstract: Disclosed herein are methods, systems, and compositions for the uniform pretreatment of biomass within seconds with low inhibitor formation. The pretreatment process is used to convert biomass to a fuel, sugars, or other useful chemicals by subjecting the feedstock to a rapid retention time under pressure and temperature and/or chemical reactant. The system includes at least one high pressure, steam impermiable plug and a continuously-operating valve discharge apparatus to discharge pretreated feedstock while maintaining uniform pressure on the pretreatment system.
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公开(公告)号：US20230340543A1
公开(公告)日：2023-10-26
申请号：US17998759
申请日：2021-04-23
Applicant: Iogen Corporation
Inventor： Brian Foody , Jeffrey S. Tolan , Kristin Martens
CPC classification number: C12P7/06 , C08H8/00 , C10L1/02 , C12P5/026 , C12P19/02 , C12P19/14 , C10L2200/0469 , C10L2290/10 , C10L2290/12 , C10L2290/26 , C12P2201/00
Abstract: A process for converting lignocellulosic biomass to fuel, wherein lignocellulosic feedstock is soaked in a sulfuric acid solution to demineralize the feedstock, the demineralized feedstock is pretreated at a temperature between 150° C. and 230° C. and a pH between 1 and 2.5, at least part of the pretreated material is converted to a fermentation production such as ethanol, and at least a portion of a secondary stream, such as still bottoms from the distillation of ethanol, is converted to biogas by anaerobic digestion. Soaking the lignocellulosic feedstock in sulfuric acid solution reduces the amount of sulfuric acid required for the pretreatment, and thus the amount of sulfate carried downstream to the anaerobic digestion. This increases the biogas yield and/or xylose yield. A recycling process, wherein mineralized soaking liquid produced in the soaking process is fed to cation exchange to remove minerals, reduces excess waste of the sulfuric acid and water usage.
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