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    Sulfite-based processes for producing nanocellulose, and compositions and products produced therefrom
    5.
    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

    申请人： API Intellectual Property Holdings, LLC

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

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

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

    摘要： 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.

    摘要翻译： 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。

    INTEGRATION OF NON-WOODY BIOREFINING AT PULP AND PAPER PLANTS
    6.
    发明申请
    INTEGRATION OF NON-WOODY BIOREFINING AT PULP AND PAPER PLANTS 有权
    在纸浆和造纸厂的非木质生物整合

    公开(公告)号：US20150275432A1

    公开(公告)日：2015-10-01

    申请号：US14673811

    申请日：2015-03-30

    申请人： API Intellectual Property Holdings, LLC

    发明人： Theodora RETSINA

    IPC分类号： D21H11/02 ,  C12P19/02 ,  D21H11/08 ,  C12P7/10 ,  D21H11/12 ,  D21H11/10

    CPC分类号： D21H11/02 ,  C12P7/10 ,  C12P19/02 ,  C13K1/02 ,  C13K1/06 ,  C13K13/002 ,  D21C3/04 ,  D21C3/06 ,  D21C3/20 ,  D21C5/00 ,  D21C9/10 ,  D21H11/08 ,  D21H11/10 ,  D21H11/12 ,  Y02E50/16 ,  Y02P20/125

    摘要： In some variations, a process is provided for producing a pulp product at a biorefinery site, comprising: converting a woody cellulosic material to a first pulp stream; converting a non-woody cellulosic material to a second pulp stream; blending the second pulp stream into the first pulp stream; and recovering or further processing the blended pulp stream as a pulp product. Biorefinery site infrastructure may be shared between the woody and non-woody lines. Also, the process may include process integration of mass and/or energy between the woody and non-woody lines. The process may be a retrofit addition to a pulp plant, or a greenfield biorefinery site. The non-woody line also can generate fermentable sugars, for fermentation to ethanol (or other products). Through allocation of carbon credits from the ethanol to the pulp, the final pulp product life-cycle profile can be improved.

    摘要翻译： 在一些变型中，提供了用于在生物精炼场所生产纸浆产品的方法，包括：将木质纤维素材料转化为第一纸浆流; 将非木质纤维素材料转化为第二纸浆流; 将第二纸浆流混合到第一纸浆流中; 并回收或进一步处理作为纸浆产品的混合纸浆流。 生物精炼厂的基础设施可能在木本和非木质生产线之间共享。 此外，该过程可以包括在木本和非木本线之间的质量和/或能量的过程整合。 该方法可以是对纸浆厂或绿地生物精炼​​厂的改造添加剂。 非木质线也可以产生可发酵的糖，用于发酵成乙醇（或其他产品）。 通过从乙醇向纸浆分配碳信用，可以提高最终的纸浆生产周期。

    PROCESSES FOR PRODUCING FLUFF PULP AND ETHANOL FROM SUGARCANE
    7.
    发明申请
    PROCESSES FOR PRODUCING FLUFF PULP AND ETHANOL FROM SUGARCANE 审中-公开
    从苏格兰生产FLUFF浆和乙醇的方法

    公开(公告)号：US20150259709A1

    公开(公告)日：2015-09-17

    申请号：US14640255

    申请日：2015-03-06

    申请人： API Intellectual Property Holdings, LLC

    发明人： Theodora RETSINA ,  Vesa PYLKKANEN

    IPC分类号： C12P7/14 ,  D21C3/20 ,  D21C3/06 ,  D21H11/12

    CPC分类号： C12P7/14 ,  C12P7/10 ,  D21C3/04 ,  D21C3/06 ,  D21C3/20 ,  D21C9/10 ,  D21C11/0007 ,  D21H11/12 ,  Y02E50/16 ,  Y02E50/17 ,  Y02P40/44

    摘要： The disclosure provides a process for producing fluff pulp and ethanol from sugarcane bagasse or straw, comprising: fractionating the feedstock in the presence of an acid catalyst, a solvent for lignin, and water, to generate a solid/liquid slurry comprising cellulose-rich solids, hemicelluloses, and lignin; separating the solid/liquid slurry into a solid stream and a liquid stream; further treating the cellulose-rich solids to produce fluff pulp; hydrolyzing the hemicelluloses to generate hemicellulose monomers; and fermenting at least a portion of the hemicellulose monomers to cellulosic ethanol. Lignin is removed from the process during one or more steps and combusted to provide energy for process requirements. The process is integrated with, and provides energy to, a first-generation process that ferments sugarcane-derived sucrose to first-generation ethanol. Similar processes are possible with energy cane, corn, and other crops.

    摘要翻译： 本公开提供了从甘蔗渣或秸秆生产绒毛浆和乙醇的方法，包括：在酸催化剂，木质素和水的溶剂存在下，分馏原料，以产生包含富含纤维素的固体的固体/液体浆料 ，半纤维素和木质素; 将固体/液体浆料分离成固体流和液体流; 进一步处理富含纤维素的固体以产生绒毛浆; 水解半纤维素以产生半纤维素单体; 并将至少一部分半纤维素单体发酵至纤维素乙醇。 在一个或多个步骤中将木质素从工艺中去除并燃烧以提供工艺要求的能量。 该过程与向第一代乙醇发酵甘蔗衍生的蔗糖的第一代方法相结合并提供能量。 能量甘蔗，玉米和其他作物可以进行类似的处理。

    METHODS FOR RECOVERING AND RECYCLING SALT BYPRODUCTS IN BIOREFINERY PROCESSES
    8.
    发明申请
    METHODS FOR RECOVERING AND RECYCLING SALT BYPRODUCTS IN BIOREFINERY PROCESSES 审中-公开
    在生物过程中回收和回收盐副产品的方法

    公开(公告)号：US20140366870A1

    公开(公告)日：2014-12-18

    申请号：US14106142

    申请日：2013-12-13

    申请人： API Intellectual Property Holdings, LLC

    发明人： Theodora RETSINA ,  Vesa PYLKKANEN

    IPC分类号： C13K13/00 ,  C13K1/02

    CPC分类号： C13K13/002 ,  C08B37/0057 ,  C08H8/00 ,  C13K1/02 ,  D21C3/06 ,  D21C3/20 ,  D21C11/0007 ,  D21C11/0014 ,  Y02P40/44

    摘要： In some variations, the invention provides a process for fractionating biomass, comprising: in a digestor, fractionating a biomass feedstock in the presence of a solvent for lignin, sulfur dioxide, and water, to produce a liquor containing hemicellulose, cellulose-rich solids, and lignin; substantially removing the cellulose-rich solids from the liquor; hydrolyzing the hemicellulose contained in the liquor, to produce hemicellulosic monomers; hydrolyzing the cellulose-rich solids to produce glucose; neutralizing, with lime, a hydrolysate liquid containing the hemicellulosic monomers and the glucose, thereby generating gypsum; heating the gypsum to form calcium sulfate; reducing the calcium sulfate with a reductant (such as syngas) to generate calcium oxide and sulfur dioxide; and recycling the calcium oxide and the sulfur dioxide. In other variations, magnesium oxide is the base from neutralizing the hydrolysate, and the resulting magnesium sulfate is converted back to magnesium oxide and sulfur dioxide through combustion.

    摘要翻译： 在一些变型中，本发明提供了一种用于分馏生物质的方法，其包括：在消化器中，在木素，二氧化硫和水的溶剂存在下分离生物质原料，以产生含有半纤维素，富含纤维素的固体， 和木质素; 从液体中大量除去富含纤维素的固体; 水解液体中所含的半纤维素，以产生半纤维素单体; 水解富含纤维素的固体产生葡萄糖; 用石灰中和含有半纤维素单体和葡萄糖的水解液，从而产生石膏; 加热石膏形成硫酸钙; 用还原剂（如合成气）还原硫酸钙以产生氧化钙和二氧化硫; 并回收氧化钙和二氧化硫。 在其它变体中，氧化镁是中和水解产物的碱，通过燃烧将得到的硫酸镁转化成氧化镁和二氧化硫。

    System and method for reclaiming rejects in sulfite pulping
    9.
    发明授权
    System and method for reclaiming rejects in sulfite pulping 有权
    在亚硫酸盐制浆中回收废渣的系统和方法

    公开(公告)号：US08877007B2

    公开(公告)日：2014-11-04

    申请号：US13972561

    申请日：2013-08-21

    申请人： University of New Brunswick

    发明人： Yonghao Ni ,  Guojun Kang

    IPC分类号： D21C3/06 ,  D21C3/26

    CPC分类号： D21C3/06 ,  D21B1/14 ,  D21C3/266 ,  D21D5/02

    摘要： Systems and methods are provided for refining and reclaiming rejects in a sulfite pulping process. Wood chips and sulfite cooking liquor are provided to a digester for delignification. The slurry obtained from the digester is screened to obtain a reject portion containing sulfite rejects. The sulfite rejects are disintegrated in a refiner, such that the rejects are refined to a freeness suitable for digestion in a subsequent re-cooking step. Refined rejects are then returned to the digester for re-cooking with wood chips.

    摘要翻译： 提供了用于在亚硫酸盐制浆过程中精炼和回收废料的系统和方法。 将木片和亚硫酸盐蒸煮液提供给消化器脱木质素。 从蒸煮器获得的浆料被筛分以获得含有亚硫酸盐废料的废料部分。 亚硫酸盐废料在精制机中分解，使得废料在随后的再蒸煮步骤中被精制成适合于消化的游离度。 然后将精制废品返回到消化器，用木屑进行再次烹饪。

    Process for producing fibrous material from wood
    10.
    发明授权
    Process for producing fibrous material from wood 失效
    从木材生产纤维材料的方法

    公开(公告)号：US08758557B2

    公开(公告)日：2014-06-24

    申请号：US12161647

    申请日：2007-04-04

    申请人： Esa-Matti Aalto ,  Hans-Ludwig Schubert

    发明人： Esa-Matti Aalto ,  Hans-Ludwig Schubert

    IPC分类号： D21B1/02 ,  D21C3/06

    CPC分类号： D21B1/021 ,  D21B1/16 ,  D21C3/00 ,  D21C3/06 ,  D21C3/18 ,  D21C9/00 ,  D21H11/06

    摘要： A process for producing fibrous material which includes the following: preparing a solution of chemicals that includes less than 25% of sulphite (calculated as Na2SO3), based on the oven-dry amount of the lignocellulosic raw material; mixing the solution of chemicals with wood in a specified liquor material; heating the solution of chemicals and the wood to a temperature above room temperature; and then either of the following alternatives: (1) removing the free-flowing solution of chemicals and digestion of the wood in the vapor phase; (2) having the wood digested in the liquid phase and separating the free-flowing solution of chemicals and the wood.

    摘要翻译： 一种生产纤维材料的方法，其包括以下步骤：基于木质纤维素原料的烘干量，制备包含小于25％亚硫酸盐（以Na 2 SO 3计算）的化学品溶液; 将化学品溶液与指定液体材料中的木材混合; 将化学品和木材的溶液加热至室温以上; 然后是以下任一替代方案：（1）去除气相中化学物质的自由流动和木材的消化; （2）将木材在液相中消化并分离化学品和木材的自由流动溶液。