PROCESSES FOR PRODUCING HIGH-VISCOSITY COMPOUNDS AS RHEOLOGY MODIFIERS, AND COMPOSITIONS PRODUCED THEREFROM
    1.
    发明申请
    PROCESSES FOR PRODUCING HIGH-VISCOSITY COMPOUNDS AS RHEOLOGY MODIFIERS, AND COMPOSITIONS PRODUCED THEREFROM 审中-公开
    用于生产高粘度化合物作为流变改性剂的方法及其制备的组合物

    公开(公告)号:WO2017024122A1

    公开(公告)日:2017-02-09

    申请号:PCT/US2016/045531

    申请日:2016-08-04

    Abstract: A process is provided for producing a biomass-derived rheology modifier, comprising: providing a pretreated feedstock comprising cellulose-rich solids; refining the cellulose-rich solids in a first high-intensity refining unit, generating refined cellulose solids; gelling the refined cellulose solids in a second high-intensity refining unit, thereby generating gelled cellulose solids; and homogenizing the gelled cellulose solids in a high-shear homogenizer, thereby generating a biomass-derived rheology modifier. The pretreated feedstock may include kraft pulp, sulfite pulp, AVAP® pulp, soda pulp, mechanical pulp, thermomechanical pulp, and/or chemimechanical pulp, derived from wood or lignocellulosic biomass. The pretreated feedstock may be GP3+® pulp, obtained from steam or hot-water extraction of lignocellulosic biomass. These rheology modifiers may be utilized in a wide variety of applications, including water-based or oil-based hydraulic fracturing fluid formulations, as gelling agents. These rheology modifiers are biodegradable, and their production does not directly involve chemicals other than biomass and water.

    Abstract translation: 提供了用于生产生物质衍生的流变改性剂的方法,其包括:提供包含富含纤维素的固体的预处理原料; 在第一高强度精炼单元中精炼富含纤维素的固体,产生精制纤维素固体; 在第二高强度精炼单元中胶凝精制纤维素固体,从而产生凝胶状纤维素固体; 并在高剪切均化器中均化凝胶状纤维素固体,从而产生生物质衍生的流变改性剂。 预处理的原料可以包括衍生自木材或木质纤维素生物质的牛皮纸浆,亚硫酸盐浆,纸浆,苏打浆,机械纸浆,热机械纸浆和/或化学机械纸浆。 预处理的原料可以是从蒸汽或木质纤维素生物质的热水提取获得的纸浆。 这些流变改性剂可用于各种应用中,包括水基或油基水力压裂液制剂,作为胶凝剂。 这些流变改性剂是可生物降解的,它们的生产不直接涉及生物质和水以外的化学物质。

    CONTINUOUS COUNTERCURRENT ENZYMATIC HYDROLYSIS OF PRETREATED BIOMASS AT HIGH SOLIDS CONCENTRATIONS
    2.
    发明申请
    CONTINUOUS COUNTERCURRENT ENZYMATIC HYDROLYSIS OF PRETREATED BIOMASS AT HIGH SOLIDS CONCENTRATIONS 审中-公开
    预处理生物质在高浓度浓度下的连续反相电流水解

    公开(公告)号:WO2016036584A1

    公开(公告)日:2016-03-10

    申请号:PCT/US2015/047305

    申请日:2015-08-28

    CPC classification number: C12P19/14 C12P19/02 C12P2201/00

    Abstract: The invention provides a continuous process for enzymatic hydrolysis of pretreated biomass, the process comprising: providing a pretreated lignocellulosic biomass feed material containing cellulose; introducing the pretreated lignocellulosic biomass feed material to a mechanical-treatment unit containing one or more decompression regions configured to release pressure; introducing a liquid solution containing cellulase enzymes to one or more decompression regions in the mechanical-treatment unit, wherein the liquid solution enters void spaces between fibers of the pretreated lignocellulosic biomass feed material, to form enzymecontaining cellulose-rich solids; and retaining the enzyme-containing cellulose-rich solids under effective hydrolysis conditions to hydrolyze at least some of the cellulose to glucose. Various apparatus configurations are disclosed for the mechanicaltreatment unit.

    Abstract translation: 本发明提供了用于预处理的生物质的酶水解的连续方法,该方法包括:提供含纤维素的预处理的木质纤维素生物质饲料; 将预处理的木质纤维素生物质原料引入含有一个或多个构造成释放压力的减压区域的机械处理单元; 将含有纤维素酶的液体溶液引入机械处理单元中的一个或多个减压区域,其中液体溶液进入预处理的木质纤维素生物质进料的纤维之间的空隙,以形成含有富含纤维素的固体的酶; 并且在有效的水解条件下保留含酶的富含纤维素的固体以将至少一些纤维素水解成葡萄糖。 公开了用于机械处理单元的各种装置结构。

    PROCESS AND APPARATUS FOR BIOMASS CLEANING IN LIGNOCELLULOSIC BIOREFINERIES
    3.
    发明申请
    PROCESS AND APPARATUS FOR BIOMASS CLEANING IN LIGNOCELLULOSIC BIOREFINERIES 审中-公开
    生物质清洁在线粒体生物学中的过程和装置

    公开(公告)号:WO2016081686A1

    公开(公告)日:2016-05-26

    申请号:PCT/US2015/061476

    申请日:2015-11-19

    Abstract: A wet process for cleaning biomass is disclosed, comprising: introducing biomass feedstock to a vibrating separator, to generate an overflow stream and an underflow stream, wherein the overflow stream comprises biomass and large grit, and wherein the underflow stream comprises fines and small grit; introducing the overflow stream to a kinetic separator, to generate an intermediate biomass stream and a large-grit stream; introducing the underflow stream and elutriation water to a hydroclone separator, to generate a wet biomass-fines stream and a small-grit stream; separating water contained in the wet biomass-fines stream and recycling it as elutriation water, to generate a biomass fines stream; and combining the biomass fines stream with the intermediate biomass stream, thereby generating clean biomass. An alternative embodiment for a dry process to clean biomass is also disclosed. The clean biomass may be used in a wide variety of biorefining processes.

    Abstract translation: 公开了用于清洁生物质的湿法,其包括:将生物质原料引入到振动分离器中,以产生溢流和底流,其中所述溢流流包括生物质和大砂粒,并且其中所述下溢流包括细粒和小砂粒; 将溢出流引入动力学分离器以产生中间生物质流和大粒子流; 将下溢流和淘析水引入水力旋流分离器,以产生湿生物质 - 细粒料流和小粒料流; 分离湿生物质 - 细粒料流中所含的水并将其再循环作为淘析水,以产生生物质细粒料流; 并将生物质细粒料流与中间生物质流混合,由此产生清洁的生物质。 还公开了用于清洁生物质的干法的替代实施方案。 清洁的生物质可以用于各种各样的生物精制过程。

    PROCESSES AND APPARATUS FOR REMOVAL OF FERMENTATION INHIBITORS FROM BIOMASS HYDROLYSATES
    4.
    发明申请
    PROCESSES AND APPARATUS FOR REMOVAL OF FERMENTATION INHIBITORS FROM BIOMASS HYDROLYSATES 审中-公开
    用于从生物质水解产物中去除发酵抑制剂的方法和设备

    公开(公告)号:WO2015126899A2

    公开(公告)日:2015-08-27

    申请号:PCT/US2015/016308

    申请日:2015-02-18

    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.

    Abstract translation: 本公开提供了一种从生物质衍生的水解产物中分离发酵抑制剂的方法,包括:将生物质衍生的液体水解产物流引入汽提塔; 将富含蒸汽的蒸气流引入汽提塔以从液体水解产物流中汽提发酵抑制剂(如乙酸); 回收经汽提的液体流和汽提器蒸汽输出流; 压缩汽提器蒸汽输出流; 将压缩蒸气流和富水液流引入蒸发器; 从蒸发器回收蒸发的液体流和蒸发器输出蒸汽流; 并将蒸发器输出蒸汽流作为富含蒸汽的蒸汽流再循环至汽提塔。 其他变型使用精馏塔来回收经精馏的液体物流和精馏塔蒸气物流,并且将精馏塔蒸气物流作为富含蒸汽的蒸汽物流循环至汽提塔。

    DRILLING FLUID ADDITIVES AND FRACTURING FLUID ADDITIVES CONTAINING CELLULOSE NANOFIBERS AND/OR NANOCRYSTALS
    5.
    发明申请
    DRILLING FLUID ADDITIVES AND FRACTURING FLUID ADDITIVES CONTAINING CELLULOSE NANOFIBERS AND/OR NANOCRYSTALS 审中-公开
    含有纤维素纳米纤维素和/或纳米晶体的钻井液添加剂和破碎液体添加剂

    公开(公告)号:WO2015196042A1

    公开(公告)日:2015-12-23

    申请号:PCT/US2015/036635

    申请日:2015-06-19

    Abstract: This disclosure provides drilling fluids and additives as well as fracturing fluids and additives that contain cellulose nanofibers and/or cellulose nanocrystals. In some embodiments, hydrophobic nanocellulose is provided which can be incorporated into oil-based fluids and additives. These water-based or oil-based fluids and additives may further include lignosulfonates and other biomass-derived components. Also, these water-based or oil-based fluids and additives may further include enzymes. The drilling and fracturing fluids and additives described herein may be produced using the AVAP® process technology to produce a nanocellulose precursor, followed by low-energy refining to produce nanocellulose for incorporation into a variety of drilling and fracturing fluids and additives.

    Abstract translation: 本公开提供了钻井液和添加剂以及包含纤维素纳米纤维和/或纤维素纳米晶体的压裂流体和添加剂。 在一些实施方案中,提供可以并入油基流体和添加剂中的疏水性纳米纤维素。 这些水基或油基流体和添加剂可以进一步包括木质素磺酸盐和其它生物质衍生的组分。 此外,这些水性或油性流体和添加剂还可以包括酶。 本文所述的钻井和压裂流体和添加剂可以使用AVAP工艺技术来生产,以产生纳米纤维素前体,随后进行低能量精炼以制备纳米纤维,以便结合到各种钻井和压裂流体和添加剂中。

    HYDROTHERMAL-MECHANICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL OR OTHER FERMENTATION PRODUCTS
    6.
    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:WO2016134195A1

    公开(公告)日:2016-08-25

    申请号:PCT/US2016/018556

    申请日:2016-02-19

    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。

    METHODS AND APPARATUS FOR REMOVING DISSOLVED GASES FROM FERMENTATION STREAMS
    7.
    发明申请
    METHODS AND APPARATUS FOR REMOVING DISSOLVED GASES FROM FERMENTATION STREAMS 审中-公开
    从发酵过程中去除溶解气体的方法和装置

    公开(公告)号:WO2015116411A1

    公开(公告)日:2015-08-06

    申请号:PCT/US2015/011875

    申请日:2015-01-17

    Abstract: The present invention provides a method of treating a fermentation stream to remove dissolved gases, comprising obtaining a fermentation stream including water, one or more fermentation products, and dissolved gases; continuously sonicating the fermentation stream to generate acoustically cavitated gases from the dissolved gases; and applying vacuum to release the acoustically cavitated gases from the fermentation stream. The dissolved gases may include air, oxygen, nitrogen, helium, argon, carbon dioxide, carbon monoxide, hydrogen, or other non-condensables. The release of acoustically cavitated gases may optionally be done simultaneously with sonication. At least 75 %, such as up to 95 % or more, of the dissolved gases may be released from the fermentation stream. The disclosed method positively impacts downstream operations and product quality by removing dissolved gases.

    Abstract translation: 本发明提供一种处理发酵流以除去溶解气体的方法,包括获得包括水,一种或多种发酵产物和溶解气体的发酵流; 连续超声处理发酵流,以从溶解的气体中产生声气蚀气体; 并施加真空以从发酵流中释放声气蚀气体。 溶解的气体可包括空气,氧气,氮气,氦气,氩气,二氧化碳,一氧化碳,氢气或其他不可冷凝物。 声气蚀气体的释放可以任选地与超声处理同时进行。 可以从发酵流中释放至少75%,例如高达95%或更多的溶解气体。 所公开的方法通过去除溶解气体积极地影响下游操作和产品质量。

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