中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

164 records (took 0.032 seconds)

    NANOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE SAME
    2.
    发明申请
    NANOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE SAME 审中-公开

    公开(公告)号：US20190292277A1

    公开(公告)日：2019-09-26

    申请号：US16285362

    申请日：2019-02-26

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Theodora RETSINA ,  Kimberly NELSON

    IPC: C08B15/02 ,  C08L1/02 ,  C08B15/08 ,  C08B15/04 ,  C08B15/00 ,  C08K9/00 ,  C08J7/12 ,  C09D101/04

    Abstract: A composition comprising nanocellulose is disclosed, wherein the nanocellulose contains very low or essentially no sulfur content. The nanocellulose may be in the form of cellulose nanocrystals, cellulose nanofibrils, or both. The nanocellulose is characterized by a crystallinity of at least 80%, an onset of thermal decomposition of 300° F. or higher, and a low light transmittance over the range 400-700 nm. Other variations provide a composition comprising lignin-coated hydrophobic nanocellulose, wherein the nanocellulose contains very low or essentially no sulfur content. Some variations provide a composition comprising nanocellulose, wherein the nanocellulose contains about 0.1 wt % equivalent sulfur content, or less, as SO4 groups chemically or physically bound to the nanocellulose. In some embodiments, the nanocellulose contains essentially no hydrogen atoms (apart from hydrogen structurally contained in nanocellulose itself) bound to the nanocellulose. Various compositions, materials, and products may incorporate the nanocellulose compositions disclosed herein.

    Systems and methods for continuously fermenting C5 and C6 saccharides
    3.
    发明授权
    Systems and methods for continuously fermenting C5 and C6 saccharides 有权

    公开(公告)号：US10316336B2

    公开(公告)日：2019-06-11

    申请号：US15605930

    申请日：2017-05-25

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Shrikant Survase ,  Ryan Zebroski ,  Georgios Adamos ,  Vesa Pylkkanen

    IPC: C12P7/10 ,  C12P7/04 ,  C12P7/16 ,  C12P7/28 ,  C12P7/52 ,  C12P7/54 ,  C12P19/02 ,  C12P19/14

    Abstract: This invention provides optimized fermentation of cellulosic and hemicellulosic sugars. Biomass-derived hemicellulosic and cellulosic sugars are independently conditioned and separately fermented, utilizing reuse and recycle of microorganisms, metabolic intermediates, and nutrients. Conditioned sugars can be fermented in separate vessels, where excess cells from glucose fermentation are conveyed to hemicellulose sugar fermentation along with raffinate from solvent recovery, to enhance productivity and product yield. Some variations provide a method of fermenting C5 and C6 sugars to fermentation products, the method comprising: fermenting a C6-rich sugar feed to a first fermentation product; fermenting a C5-rich sugar feed to a second fermentation product; removing microorganism cells from the first fermentor, to maintain a cell concentration within a selected range; conveying microorganism cells to a second fermentor; and removing microorganism cells from the second fermentor, to maintain a microorganism cell concentration that is greater than that in the C6-rich fermentor.

    Processes and apparatus for removal of fermentation inhibitors from biomass hydrolysates
    5.
    发明授权
    Processes and apparatus for removal of fermentation inhibitors from biomass hydrolysates 有权

    公开(公告)号：US09738729B2

    公开(公告)日：2017-08-22

    申请号：US14623853

    申请日：2015-02-17

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Theodora Retsina ,  Jean-Pierre Monclin ,  Ryan Zebroski ,  Anastasios Trypakis ,  Vesa Pylkkanen

    IPC: C08B15/00 ,  C08H8/00

    CPC classification number: C08B15/00 ,  C08H8/00

    Abstract: The disclosure provides a process for separating fermentation inhibitors from a biomass-derived hydrolysate, comprising: introducing a biomass-derived liquid hydrolysate stream to a stripping column; introducing a steam-rich vapor stream to the stripping column to strip fermentation inhibitors (such as acetic acid) from the liquid hydrolysate stream; recovering a stripped liquid stream and a stripper vapor output stream; compressing the stripper vapor output stream; introducing the compressed vapor stream, and a water-rich liquid stream, to an evaporator; recovering, from the evaporator, an evaporated liquid stream and an evaporator output vapor stream; and recycling the evaporator output vapor stream to the stripping column as the steam-rich vapor stream. Other variations utilize a rectification column to recover a rectified liquid stream and a rectification column vapor stream, and recycle the rectification column vapor stream to the stripping column as the steam-rich vapor stream.

    NANOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE SAME
    6.
    发明申请
    NANOCELLULOSE COMPOSITIONS AND PROCESSES TO PRODUCE SAME 审中-公开

    公开(公告)号：US20170190800A1

    公开(公告)日：2017-07-06

    申请号：US15353306

    申请日：2016-11-16

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Theodora RETSINA ,  Kimberly NELSON

    IPC: C08B15/02 ,  C09D101/04

    CPC classification number: C08B15/02 ,  C08B15/00 ,  C08B15/04 ,  C08B15/08 ,  C08J7/12 ,  C08K9/00 ,  C08L1/02 ,  C09D101/04

    Abstract: A composition comprising nanocellulose is disclosed, wherein the nanocellulose contains very low or essentially no sulfur content. The nanocellulose may be in the form of cellulose nanocrystals, cellulose nanofibrils, or both. The nanocellulose is characterized by a crystallinity of at least 80%, an onset of thermal decomposition of 300° F. or higher, and a low light transmittance over the range 400-700 nm. Other variations provide a composition comprising lignin-coated hydrophobic nanocellulose, wherein the nanocellulose contains very low or essentially no sulfur content. Some variations provide a composition comprising nanocellulose, wherein the nanocellulose contains about 0.1 wt % equivalent sulfur content, or less, as SO4 groups chemically or physically bound to the nanocellulose. In some embodiments, the nanocellulose contains essentially no hydrogen atoms (apart from hydrogen structurally contained in nanocellulose itself) bound to the nanocellulose. Various compositions, materials, and products may incorporate the nanocellulose compositions disclosed herein.

    Continuous processes for hydrolyzing hemicelluloses from ligocellulosic materials with cleaning system
    8.
    发明授权
    Continuous processes for hydrolyzing hemicelluloses from ligocellulosic materials with cleaning system 有权
    用清洁系统从纤维素材料水解半纤维素的连续方法

    公开(公告)号：US09435002B2

    公开(公告)日：2016-09-06

    申请号：US14714214

    申请日：2015-05-15

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Zheng Dang ,  Mehmet Sefik Tunc ,  Ziyu Wang

    IPC: C13K13/00 ,  C07C51/00 ,  C07D307/50 ,  C13K1/02

    CPC classification number: C13K13/002 ,  C07C51/00 ,  C07D307/50 ,  C13K1/02 ,  C13K13/00 ,  Y02E50/16

    Abstract: A continuous process for producing hemicellulose sugars from a biomass extraction liquor is provided. A system is configured for continuously producing hemicellulose sugars and/or hemicellulose derivatives from a biomass extraction liquor, the system comprising at least a first hydrolysis reactor and a second hydrolysis reactor. Each of the hydrolysis reactors is in switchable communication with (i) an operating feed stream of a biomass extraction liquor containing water, hemicellulose oligomers, and dissolved or suspended lignin, and (ii) a cleaning feed stream of a cleaning agent selected from the group consisting of steam, an alkaline solution, an organic solvent, and combinations thereof. The cleaning agent dissolves precipitated lignin formed from the lignin under the hydrolysis reaction conditions.

    Abstract translation: 提供了从生物质提取液中生产半纤维素糖的连续方法。 一种系统被配置用于从生物质提取液连续生产半纤维素糖和/或半纤维素衍生物，该系统至少包含第一水解反应器和第二水解反应器。 每个水解反应器与（i）含有水，半纤维素低聚物和溶解或悬浮的木质素的生物质提取液的操作进料流可交换连通，和（ii）清洁剂的清洁进料流， 由蒸汽，碱性溶液，有机溶剂及其组合组成。 清洗剂在水解反应条件下溶解由木质素形成的沉淀木质素。

    HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS
    9.
    发明申请
    HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS 审中-公开
    木糖醇生物质对乙醇或其他发酵产品的水力机械转化

    公开(公告)号：US20160244788A1

    公开(公告)日：2016-08-25

    申请号：US15047608

    申请日：2016-02-18

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Theodora RETSINA ,  Vesa PYLKKANEN ,  Steven R. RUTHERFORD ,  Jean-Pierre MONCLIN

    IPC: C12P7/14 ,  D21C9/00 ,  D21C1/02

    CPC classification number: C12P7/14 ,  C12P2201/00 ,  C12P2203/00 ,  D21C1/02 ,  D21C3/00 ,  D21C9/00 ,  Y02E50/16

    Abstract: A low-cost process is provided to render lignocellulosic biomass accessible to cellulase enzymes, to produce fermentable sugars. Some variations provide a process to produce ethanol from lignocellulosic biomass (such as sugarcane bagasse or corn stover), comprising introducing a lignocellulosic biomass feedstock to a single-stage digestor; exposing the feedstock to a reaction solution comprising steam or liquid hot water within the digestor, to solubilize the hemicellulose in a liquid phase and to provide a cellulose-rich solid phase; refining the cellulose-rich solid phase, together with the liquid phase, in a mechanical refiner, thereby providing a mixture of refined cellulose-rich solids and the liquid phase; enzymatically hydrolyzing the mixture in a hydrolysis reactor with cellulase enzymes, to generate fermentable sugars; and fermenting the fermentable sugars to produce ethanol. Many alternative process configurations are described. The disclosed processes may be employed for other fermentation products.

    Abstract translation: 提供了一种低成本的方法来使木质纤维素生物质可获得纤维素酶，以产生可发酵的糖。 一些变型提供了从木质纤维素生物质（例如甘蔗渣或玉米秸秆）生产乙醇的方法，包括将木质纤维素生物质原料引入单级消化器; 将原料暴露于消化器内包含蒸汽或液体热水的反应溶液中，以将半纤维素溶解在液相中并提供富含纤维素的固相; 在机械磨浆机中将富含纤维素的固相与液相一起精炼，从而提供精制富含纤维素的固体和液相的混合物; 在水解反应器中用纤维素酶酶水解水解产生可发酵糖; 并发酵可发酵糖以产生乙醇。 描述了许多替代的工艺配置。 所公开的方法可用于其它发酵产物。

    Sulfite-based processes for producing nanocellulose, and compositions and products produced therefrom
    10.
    发明授权
    Sulfite-based processes for producing nanocellulose, and compositions and products produced therefrom 有权
    用于生产纳米纤维的基于亚硫酸盐的方法，以及由其制备的组合物和产品

    公开(公告)号：US09399840B2

    公开(公告)日：2016-07-26

    申请号：US14584593

    申请日：2014-12-29

    Applicant: API Intellectual Property Holdings, LLC

    Inventor： Kimberly Nelson ,  Theodora Retsina ,  Vesa Pylkkanen ,  Ryan O'Connor

    IPC: D21H11/18 ,  D21H21/32 ,  C13K1/02 ,  D21H17/66 ,  D21H11/06 ,  D21C3/04 ,  D21C3/06 ,  D21C9/00 ,  D21C9/10

    CPC classification number: D21H11/18 ,  C13K1/02 ,  D21C3/04 ,  D21C3/06 ,  D21C9/007 ,  D21C9/10 ,  D21H11/06 ,  D21H17/66 ,  D21H21/32

    Abstract: Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with low mechanical energy input. In some variations, the process includes fractionating biomass with sulfur dioxide or a sulfite compound 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 total mechanical energy may be less than 500 kilowatt-hours per ton. 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.

    Abstract translation: 所公开的方法能够以低机械能输入将生物质转化为高结晶度纳米纤维素。 在一些变型中，该方法包括用二氧化硫或亚硫酸盐化合物和水分解生物质，以产生富含纤维素的固体和含有半纤维素和木质素的液体; 并机械处理富含纤维素的固体以形成纳米原纤维和/或纳米晶体。 总机械能可能小于500千瓦时/吨。 纳米纤维素材料的结晶度可以为80％以上，转化为复合材料的良好的增强性能。 纳米纤维素材料可以包括纳米纤维化纤维素，纳米晶纤维素或两者。 在一些实施方案中，通过将一些木质素沉积到纤维素表面上，纳米纤维素材料是疏水的。 任选地，衍生自无定形纤维素和半纤维素的糖可以单独发酵，例如用于各种聚合物的单体。 这些聚合物可与纳米纤维素结合形成完全可再生的复合材料。

Patent Agency Ranking