PROCESSES FOR PRODUCING CELLULOSIC FRUCTOSE FROM LIGNOCELLULOSIC BIOMASS
    12.
    发明申请
    PROCESSES FOR PRODUCING CELLULOSIC FRUCTOSE FROM LIGNOCELLULOSIC BIOMASS 审中-公开
    从细菌生物量生产细胞纤维的方法

    公开(公告)号:US20150361474A1

    公开(公告)日:2015-12-17

    申请号:US14831827

    申请日:2015-08-20

    Abstract: Some variations provide a process for producing cellulosic fructose from biomass, comprising: fractionating a biomass feedstock in the presence of an acid catalyst, a solvent for lignin, and water, to produce a liquor containing cellulose-rich solids, lignin, and dissolved hemicellulose; removing the cellulose-rich solids from the liquor; hydrolyzing the dissolved hemicellulose contained in the liquor, to produce a hydrolyzed liquor comprising hemicellulosic monomers; hydrolyzing the cellulose-rich solids to produce glucose, using cellulase enzymes or an acid or base hydrolysis catalyst; enzymatically isomerizing the glucose to fructose, using glucose isomerase enzymes; and recovering the fructose in purified form or in a fructose-glucose solution. The cellulosic fructose produced by the disclosed processes has many uses.

    Abstract translation: 一些变体提供了用于从生物质生产纤维素果糖的方法,包括:在酸催化剂,木质素和水的溶剂存在下分解生物质原料,以产生含有富含纤维素的固体,木质素和溶解的半纤维素的液体; 从液体中除去富含纤维素的固体; 水解包含在液体中的溶解的半纤维素,以产生包含半纤维素单体的水解液; 使用纤维素酶或酸或碱水解催化剂水解富含纤维素的固体以产生葡萄糖; 使用葡萄糖异构酶酶将葡萄糖酶促异构化成果糖; 并回收纯化形式的果糖或果糖 - 葡萄糖溶液。 由所公开的方法生产的纤维素果糖具有许多用途。

    PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM
    13.
    发明申请
    PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM 有权
    生产纳米纤维素的方法和装置,以及其制备的组合物和产品

    公开(公告)号:US20140154757A1

    公开(公告)日:2014-06-05

    申请号:US14092910

    申请日:2013-11-27

    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 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: 所公开的方法能够将生物质转化成具有惊人的低机械能输入的高结晶度纳米纤维素。 在一些变型中,该方法包括用酸(例如二氧化硫),溶剂(例如乙醇)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在纤维素表面上,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。

    SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM

    公开(公告)号:US20190271114A1

    公开(公告)日:2019-09-05

    申请号:US16180174

    申请日:2018-11-05

    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.

    SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM
    20.
    发明申请
    SULFITE-BASED PROCESSES FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROM 有权
    用于生产纳米纤维素的基于硫酸的方法,以及其制备的组合物和产品

    公开(公告)号:US20150184345A1

    公开(公告)日:2015-07-02

    申请号:US14584593

    申请日:2014-12-29

    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。

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