Upflow settling reactor for enzymatic hydrolysis of cellulose
    1.
    发明申请
    Upflow settling reactor for enzymatic hydrolysis of cellulose 失效
    用于纤维素酶水解的上流沉降反应器

    公开(公告)号:US20060154352A1

    公开(公告)日:2006-07-13

    申请号:US11303424

    申请日:2005-12-16

    IPC分类号: C12P7/06 C12P19/02

    摘要: A process for the enzymatic hydrolysis of cellulose to produce a hydrolysis product from a pre-treated cellulosic feedstock is provided. The process comprises introducing an aqueous slurry of the pre-treated cellulosic feedstock at the bottom of a hydrolysis reactor. Axial dispersion in the reactor is limited by avoiding mixing and maintaining an average slurry flow velocity of about 0.1 to about 20 feet per hour, such that the undissolved solids flow upward at a rate slower than that of the liquid. Cellulase enzymes are added to the aqueous slurry before or during the step of introducing. An aqueous stream comprising hydrolysis product and unhydrolyzed solids is removed from the hydrolysis reactor. Also provided are enzyme compositions which comprise cellulase enzymes and flocculents for use in the process. In addition, a kit comprising cellulase enzymes and flocculent is provided.

    摘要翻译: 提供了一种纤维素酶水解从预处理的纤维素原料产生水解产物的方法。 该方法包括在水解反应器的底部引入预处理的纤维素原料的含水浆料。 通过避免混合并保持约0.1至约20英尺/小时的平均浆料流速,使得未溶解的固体以比液体慢的速率向上流动,来限制反应器中的轴向分散。 在引入步骤之前或期间,将纤维素酶加入到含水浆料中。 从水解反应器中除去包含水解产物和未水解固体的水流。 还提供了包含用于该方法的纤维素酶和絮凝剂的酶组合物。 此外,提供了包含纤维素酶和絮状物的试剂盒。

    RECOVERY OF INORGANIC SALT DURING PROCESSING OF LIGNOCELLULOSIC FEEDSTOCKS
    3.
    发明申请
    RECOVERY OF INORGANIC SALT DURING PROCESSING OF LIGNOCELLULOSIC FEEDSTOCKS 有权
    无机盐处理过程中无机盐的回收

    公开(公告)号:US20120329096A1

    公开(公告)日:2012-12-27

    申请号:US13569308

    申请日:2012-08-08

    IPC分类号: C12P7/10 C12P19/00

    摘要: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then enzymatically hydrolyzed to produce an enzyme hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from either a stream obtained from the lignocellulosic feedstock prior to the step of pretreating, a stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis drying, or agglomeration and granulation, and then used as desired, for example as a fertilizer.

    摘要翻译: 提供了在木质纤维素原料的加工过程中回收无机盐的方法。 该方法包括通过向原料中加入酸来预处理木质纤维素原料以产生预处理的木质纤维素原料。 然后将可溶碱添加到预处理的木质纤维素原料中以调节pH并产生中和的原料。 然后将中和的原料酶水解以产生酶水解原料和糖流。 在预处理步骤之前从木质纤维素原料获得的物流中回收无机盐,从预处理的木质纤维素原料获得的物流,从中和原料获得的物流,从糖流获得的物流,或这些物质的组合 流。 无机盐可以通过结晶,电渗析干燥或附聚和造粒进行浓缩,澄清,回收和纯化,然后根据需要使用,例如作为肥料。

    UPFLOW HYDROLYSIS REACTOR SYSTEM FOR HYDROLYZING CELLULOSE
    4.
    发明申请
    UPFLOW HYDROLYSIS REACTOR SYSTEM FOR HYDROLYZING CELLULOSE 审中-公开
    用于水解纤维素的UPFLOW水解反应器系统

    公开(公告)号:US20100221819A1

    公开(公告)日:2010-09-02

    申请号:US12762589

    申请日:2010-04-19

    IPC分类号: C12M1/00

    摘要: A process for the enzymatic hydrolysis of cellulose to produce a hydrolysis product from a pre-treated cellulosic feedstock is provided. The process comprises introducing an aqueous slurry of the pre-treated cellulosic feedstock at the bottom of a hydrolysis reactor. Axial dispersion in the reactor is limited by avoiding mixing and maintaining an average slurry flow velocity of about 0.1 to about 20 feet per hour, such that the undissolved solids flow upward at a rate slower than that of the liquid. Cellulase enzymes are added to the aqueous slurry before or during the step of introducing. An aqueous stream comprising hydrolysis product and unhydrolyzed solids is removed from the hydrolysis reactor. Also provided are enzyme compositions which comprise cellulase enzymes and flocculents for use in the process. In addition, a kit comprising cellulase enzymes and flocculent is provided.

    摘要翻译: 提供了一种纤维素酶水解从预处理的纤维素原料产生水解产物的方法。 该方法包括在水解反应器的底部引入预处理的纤维素原料的含水浆料。 通过避免混合并保持约0.1至约20英尺/小时的平均浆料流速,使得未溶解的固体以比液体慢的速率向上流动,来限制反应器中的轴向分散。 在引入步骤之前或期间,将纤维素酶加入到含水浆料中。 从水解反应器中除去包含水解产物和未水解固体的水流。 还提供了包含用于该方法的纤维素酶和絮凝剂的酶组合物。 另外,提供了包含纤维素酶和絮状物的试剂盒。

    Inorganic salt recovery during processing of lignocellulosic feedstocks
    6.
    发明申请
    Inorganic salt recovery during processing of lignocellulosic feedstocks 失效
    在木质纤维素原料加工过程中的无机盐回收

    公开(公告)号:US20080102502A1

    公开(公告)日:2008-05-01

    申请号:US11586135

    申请日:2006-10-25

    IPC分类号: C12P7/06

    摘要: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid or a base to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base or acid is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then hydrolyzed to produce an hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from a wash stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis, drying, or agglomeration and granulation, and then used as desired, for example, as a fertilizer.

    摘要翻译: 提供了在木质纤维素原料的加工过程中回收无机盐的方法。 该方法包括通过向原料中加入酸或碱来预处理木质纤维素原料以产生预处理的木质纤维素原料。 然后将可溶性碱或酸加入到预处理的木质纤维素原料中以调节pH并产生中和的原料。 然后将中和的原料水解以产生水解原料和糖流。 从由预处理的木质纤维素原料获得的洗涤流,从中和的原料获得的物流,从糖流获得的物流或这些物流的组合从无机盐中回收无机盐。 无机盐可以通过结晶,电渗析,干燥或附聚和造粒浓缩,澄清,回收和纯化,然后根据需要例如作为肥料使用。

    Recovery of inorganic salt during processing of lignocellulosic feedstocks
    8.
    发明授权
    Recovery of inorganic salt during processing of lignocellulosic feedstocks 有权
    在木质纤维素原料加工过程中回收无机盐

    公开(公告)号:US08247203B2

    公开(公告)日:2012-08-21

    申请号:US12539645

    申请日:2009-08-12

    摘要: A method for recovering inorganic salt during processing of a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock by adding an acid to the feedstock to produce a pretreated lignocellulosic feedstock. A soluble base is then added to the pretreated lignocellulosic feedstock to adjust the pH and produce a neutralized feedstock. The neutralized feedstock is then enzymatically hydrolyzed to produce an enzyme hydrolyzed feedstock and a sugar stream. Inorganic salt is recovered from either a stream obtained from the lignocellulosic feedstock prior to the step of pretreating, a stream obtained from the pretreated lignocellulosic feedstock, a stream obtained from the neutralized feedstock, a stream obtained from the sugar stream, or a combination of these streams. The inorganic salt may be concentrated, clarified, recovered and purified by crystallization, electrodialysis drying, or agglomeration and granulation, and then used as desired, for example as a fertilizer.

    摘要翻译: 提供了在木质纤维素原料的加工过程中回收无机盐的方法。 该方法包括通过向原料中加入酸来预处理木质纤维素原料以产生预处理的木质纤维素原料。 然后将可溶碱添加到预处理的木质纤维素原料中以调节pH并产生中和的原料。 然后将中和的原料酶水解以产生酶水解原料和糖流。 在预处理步骤之前从木质纤维素原料获得的物流中回收无机盐,从预处理的木质纤维素原料获得的物流,从中和原料获得的物流,从糖流获得的物流,或这些物质的组合 流。 无机盐可以通过结晶,电渗析干燥或团聚和造粒进行浓缩,澄清,回收和纯化,然后根据需要使用,例如作为肥料。

    Upflow reactor for enzymatic hydrolysis of cellulose
    9.
    发明授权
    Upflow reactor for enzymatic hydrolysis of cellulose 失效
    用于纤维素酶水解的上流式反应器

    公开(公告)号:US07727746B2

    公开(公告)日:2010-06-01

    申请号:US11303424

    申请日:2005-12-16

    IPC分类号: C12P19/14

    摘要: A process for the enzymatic hydrolysis of cellulose to produce a hydrolysis product from a pre-treated cellulosic feedstock is provided. The process comprises introducing an aqueous slurry of the pre-treated cellulosic feedstock at the bottom of a hydrolysis reactor. Axial dispersion in the reactor is limited by avoiding mixing and maintaining an average slurry flow velocity of about 0.1 to about 20 feet per hour, such that the undissolved solids flow upward at a rate slower than that of the liquid. Cellulase enzymes are added to the aqueous slurry before or during the step of introducing. An aqueous stream comprising hydrolysis product and unhydrolyzed solids is removed from the hydrolysis reactor. Also provided are enzyme compositions which comprise cellulase enzymes and flocculents for use in the process. In addition, a kit comprising cellulase enzymes and flocculent is provided.

    摘要翻译: 提供了一种纤维素酶水解从预处理的纤维素原料产生水解产物的方法。 该方法包括在水解反应器的底部引入预处理的纤维素原料的含水浆料。 通过避免混合并保持约0.1至约20英尺/小时的平均浆料流速,使得未溶解的固体以比液体慢的速率向上流动,来限制反应器中的轴向分散。 在引入步骤之前或期间,将纤维素酶加入到含水浆料中。 从水解反应器中除去包含水解产物和未水解固体的水流。 还提供了包含用于该方法的纤维素酶和絮凝剂的酶组合物。 此外,提供了包含纤维素酶和絮状物的试剂盒。