Methods and Systems for Pretreatment of Biomass Solids
    11.
    发明申请
    Methods and Systems for Pretreatment of Biomass Solids 审中-公开
    生物质固体预处理方法与系统

    公开(公告)号:US20130210085A1

    公开(公告)日:2013-08-15

    申请号:US13745403

    申请日:2013-01-18

    CPC classification number: C12P19/14 C12M45/02 C12M45/06 C12P19/00 C12P2201/00

    Abstract: A method for the pretreatment of biomass solids includes hydrating the biomass solids to form a biomass slurry, shear treating the biomass solids, and hydrolyzing the biomass solids in the presence of reactive enzymes in a pressure hydrolysis zone. Shear treatment of the biomass solids reduces the particle size of the biomass solids, modifies the particle or slurry morphology, and/or ruptures the cell walls of the biomass solids. The pressure hydrolysis zone includes a high-shear, high-pressure, low-temperature heat exchange and reaction zone and a low-pressure, low-temperature polishing zone. Sugars formed from the biomass solids treated in accordance with the methods described above may be used to produce various biofuels.

    Abstract translation: 用于预处理生物质固体的方法包括将生物质固体水合以形成生物质浆料,剪切处理生物质固体,以及在反应性酶存在下在压力水解区中水解生物质固体。 生物质固体的剪切处理降低了生物质固体的粒径,改变了颗粒或浆料的形态,和/或破坏了生物质固体的细胞壁。 压力水解区包括高剪切,高压,低温的热交换和反应区以及低压低温抛光区。 由根据上述方法处理的生物质固体形成的糖可用于生产各种生物燃料。

    Propylene oxide system
    12.
    发明申请
    Propylene oxide system 审中-公开
    环氧丙烷体系

    公开(公告)号:US20080132717A1

    公开(公告)日:2008-06-05

    申请号:US11633196

    申请日:2006-12-04

    CPC classification number: C07D301/12

    Abstract: In a propylene oxide process wherein propylene is oxidized in a reaction mixture comprised of a solid catalyst slurried in a solvent and wherein propane and propylene are separated by distillation in a C3 splitter, the improvement of removing exothermic heat of reaction by indirect heat exchange with propane, separating the heated propane into a liquid and a vapor fraction and heating the C3 splitter distillation with the said propane vapor.

    Abstract translation: 在其中丙烯在由在溶剂中浆化的固体催化剂组成的反应混合物中被氧化并且其中丙烷和丙烯在C 3分馏器中通过蒸馏分离的环氧丙烷方法中,改进了去除放热 通过与丙烷的间接热交换反应,将加热的丙烷分离成液体和蒸气馏分,并用所述丙烷蒸气加热C 3 H 3分馏塔。

    Direct epoxidation process using alkanoic acid modifier
    14.
    发明申请
    Direct epoxidation process using alkanoic acid modifier 审中-公开
    使用链烷酸改性剂直接环氧化工艺

    公开(公告)号:US20110098491A1

    公开(公告)日:2011-04-28

    申请号:US12589775

    申请日:2009-10-28

    CPC classification number: C07D301/06 C07D301/04

    Abstract: The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of an alkanoic acid and a catalyst comprising a noble metal and a titanium zeolite, wherein the catalyst has not been reduced prior to epoxidation. This process surprisingly gives significantly improved productivity and reduced formation of unwanted propane compared to processes that do not use the alkanoic acid modifier.

    Abstract translation: 本发明是在链烷酸和包含贵金属和钛沸石的催化剂存在下用氢和氧环氧化烯烃的方法,其中催化剂在环氧化之前没有还原。 与不使用链烷酸改性剂的方法相比,该方法令人惊奇地提供了显着提高的生产率并减少了不想要的丙烷的形成。

    Epoxidation process
    19.
    发明授权
    Epoxidation process 失效
    环氧化工艺

    公开(公告)号:US06710194B1

    公开(公告)日:2004-03-23

    申请号:US10349655

    申请日:2003-01-23

    CPC classification number: C07D301/06

    Abstract: Propylene oxide is produced by liquid phase reaction of propylene oxygen and hydrogen in contact with a solid epoxidation catalyst at elevated temperature and pressure, the reaction conditions being regulated to provide a weight ratio of dissolved oxygen to dissolved hydrogen in the liquid reaction mixture of at least 16.

    Abstract translation: 环氧丙烷是通过在高温和高压下与固体环氧化催化剂接触的丙烯氧气和氢气的液相反应产生的,调节反应条件以提供至少在液体反应混合物中的溶解氧与溶解氢的重量比 16。

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