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    Process for producing bioethanol from lignocellulosic plant raw material
    181.
    发明授权
    Process for producing bioethanol from lignocellulosic plant raw material 有权
    从木质纤维素植物原料生产生物乙醇的方法

    公开(公告)号：US08551747B2

    公开(公告)日：2013-10-08

    申请号：US12863597

    申请日：2009-01-22

    Applicant: Michel Delmas ,  Bouchra Benjelloun Mlayah

    Inventor： Michel Delmas ,  Bouchra Benjelloun Mlayah

    IPC: C12P7/06 ,  C12P7/14 ,  C12P7/08 ,  C12P7/10

    CPC classification number: D21C3/04 ,  C08H6/00 ,  C12P7/10 ,  C12P2201/00 ,  Y02E50/16 ,  Y02E50/17

    Abstract: A process for pretreating a lignocellulosic plant raw material in order to obtain a pretreated material that is capable of being hydrolyzed and fermented for the production of bioethanol, includes the following successive steps: (i) destructuring the lignocellulosic plant raw material by placing it in the presence of a mixture containing formic acid and water, at a reaction temperature between 95° C. and 110° C.; (ii) then, at atmospheric pressure and prior to any hydrolysis then fermentation action, separating: on the one hand, the solid phase, mainly composed of the cellulose, constituting a first co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol; and on the other hand, the liquid phase, containing, in particular in aqueous solution, the formic acid, the lignins, and the hemicelluloses, constituting a second co-substrate, capable of then being hydrolyzed and fermented for the production of bioethanol.

    Abstract translation: 用于预处理木质纤维素植物原料以获得能够水解和发酵以生产生物乙醇的预处理材料的方法包括以下连续步骤：（i）通过将木质纤维素植物原料置于 在95℃和110℃之间的反应温度下存在含有甲酸和水的混合物。 （ii）然后，在大气压下，在任何水解之前，然后发酵作用，一方面分离：一部分主要由纤维素组成的固相，构成第一共底物，然后能够水解和发酵 生产生物乙醇; 另一方面，特别是在水溶液中含有构成第二共底物的甲酸，木质素和半纤维素的液相，其能够水解和发酵生产生物乙醇。

    PROCESS FOR PRODUCING BIOETHANOL BY ENZYMATIC HYDROLYSIS OF CELLULOSE
    183.
    发明申请
    PROCESS FOR PRODUCING BIOETHANOL BY ENZYMATIC HYDROLYSIS OF CELLULOSE 有权
    通过纤维素酶水解生产乙二醇的方法

    公开(公告)号：US20130183733A1

    公开(公告)日：2013-07-18

    申请号：US13822972

    申请日：2011-10-05

    Applicant: Michel Delmas ,  Bouchra Benjelloun Mlayah

    Inventor： Michel Delmas ,  Bouchra Benjelloun Mlayah

    IPC: C12P7/10

    CPC classification number: C12P7/10 ,  A23L33/135 ,  A23V2002/00 ,  C12P2201/00 ,  C13K1/02 ,  Y02E50/16 ,  A23V2250/5108

    Abstract: A process for producing bioethanol includes the steps of pretreatment (consisting in destructuring the lignocellulosic vegetable raw material by placing it in the presence of a mixture containing formic acid, acetic acid and water, then in separating cellulose), of enzymatic hydrolysis and of alcoholic fermentation, characterized in that it includes, prior to the enzymatic hydrolysis, a step of partial elimination of the lignins so as to obtain a residual overall level of lignins (T), expressed as percentage by weight, which is non-zero and which is included in a range determined by a lower limit, and an upper limit Bsup, respectively equal to 0.30% and 4%. In order to obtain conditions of acidification before the enzymatic hydrolysis step, the process includes a step for re-acidification of the mixture, which is carried out with an acid, or of a mixture of acids, of determined pKa, and preferably with weak organic.

    Abstract translation: 一种生产生物乙醇的方法包括以下步骤：预处理（通过将木质纤维素植物原料在含有甲酸，乙酸和水的混合物，然后在分离纤维素的存在下进行分解），酶水解和醇发酵 其特征在于，其在酶水解之前包括部分消除木质素的步骤，以获得木质素（T）的残留总体含量（T），其表示为非零的重量百分比，其包括 在由下限确定的范围内，上限Bsup分别等于0.30％和4％。 为了在酶水解步骤之前获得酸​​化条件，该方法包括用酸或酸的混合物进行测定的pKa，优选与弱有机物进行酸化的步骤 。

    METHOD FOR DILUTE ACID PRETREATMENT OF LIGNOCELLULOSIC FEEDSTOCKS
    187.
    发明申请
    METHOD FOR DILUTE ACID PRETREATMENT OF LIGNOCELLULOSIC FEEDSTOCKS 审中-公开
    低密度脂肪酸预处理方法

    公开(公告)号：US20130143285A1

    公开(公告)日：2013-06-06

    申请号：US13816270

    申请日：2011-08-11

    Applicant: Jeffrey S. Tolan ,  Steven Cardile ,  Daphne Wahnon

    Inventor： Jeffrey S. Tolan ,  Steven Cardile ,  Daphne Wahnon

    IPC: C08B1/00

    CPC classification number: C08B1/00 ,  A23V2002/00 ,  C08H8/00 ,  C12P7/10 ,  C12P2201/00 ,  C13K1/02 ,  Y02E50/16 ,  A23V2250/61

    Abstract: The present invention relates to a process for the conversion of a lignocellulosic feedstock involving acid pretreatment. The process comprises the steps of treating the lignocellulosic feedstock with alkali at a pH of between about 8.0 and about 12.0 so as to dissolve acetyl groups present on said lignocellulosic feedstock, while converting less than about 10% of the xylan present in the lignocellulosic feedstock to xylose and less than about 10% of the cellulose to glucose, thereby producing an alkali conditioned feedstock. The alkali conditioned feedstock is then pretreated at a temperature of about 160° C. to about 250° C., at a pH of about 0.5 to about 2.5 for about 0.5 to about 10 minutes so as to hydrolyze about 80 to 100% of the xylan and about 3 to about 15% of the cellulose to produce an acid pretreated feedstock comprising cellulose. The cellulose in the pretreated feedstock can be hydrolyzed to glucose with cellulase and the glucose can be fermented to produce a fermentation product.

    Abstract translation: 本发明涉及一种涉及酸预处理的木质纤维原料的转化方法。 该方法包括以约8.0至约12.0的pH处理木质纤维素原料的步骤，以便溶解存在于所述木质纤维素原料上的乙酰基，同时将少于约10％木质纤维素原料中存在的木聚糖转化为 木糖和小于约10％的纤维素与葡萄糖，从而产生碱处理的原料。 然后将碱处理的原料在约160℃至约250℃的温度下，在约0.5至约2.5的pH下预处理约0.5至约10分钟，以水解约80至100％的 木聚糖和约3至约15％的纤维素以产生包含纤维素的酸预处理原料。 预处理的原料中的纤维素可以用纤维素酶水解成葡萄糖，并且葡萄糖可以被发酵以产生发酵产物。

    Method and apparatus for treating a cellulosic feedstock
    188.
    发明授权
    Method and apparatus for treating a cellulosic feedstock 失效
    用于处理纤维素原料的方法和设备

    公开(公告)号：US08449680B2

    公开(公告)日：2013-05-28

    申请号：US12181666

    申请日：2008-07-29

    Applicant: Murray J. Burke ,  Sunalie N. Hillier

    Inventor： Murray J. Burke ,  Sunalie N. Hillier

    IPC: C13K1/02

    CPC classification number: B01J19/18 ,  C08B1/00 ,  C12M45/02 ,  C12M45/20 ,  C12P7/10 ,  C12P2201/00 ,  C13K1/02 ,  D21B1/16 ,  D21B1/22 ,  Y02E50/16

    Abstract: A method and apparatus for pre-treating a cellulosic feedstock are disclosed. Embodiments of the method comprise conveying the cellulosic feedstock through an enclosed volume, adding moisture to the cellulosic feedstock simultaneously at multiple spaced-apart moisture injection points as the cellulosic feedstock travels through the volume, and heating the cellulosic feedstock as it travels through the volume to obtain a heated moistened feedstock. Embodiments of the apparatus comprise a shell defining a treatment chamber having a lower inner surface. The treatment chamber has an inlet and an outlet spaced longitudinally apart from the inlet to define an axial length. A conveyance member is housed within the shell and is configured to sweep the lower inner surface. A plurality of injection ports are provided in at least one of the shell and the conveyance member.

    Abstract translation: 公开了一种预处理纤维素原料的方法和设备。 该方法的实施方案包括通过封闭的体积输送纤维素原料，当纤维素原料穿过体积时，在多个间隔开的水分注入点同时向纤维素原料中加入水分，并且当纤维素原料通过体积时加热纤维素原料 获得加热的润湿原料。 该装置的实施例包括限定具有下内表面的处理室的外壳。 处理室具有与入口纵向间隔开的入口和出口，以限定轴向长度。 输送构件容纳在壳体内并且构造成扫掠下内表面。 在壳体和输送部件的至少一个上设置有多个喷射口。

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