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1. 发明授权

US07368036B2 Xylanase treatment of chemical pulp 有权
标题翻译：木聚糖酶处理化学纸浆
公开(公告)号：US07368036B2
公开(公告)日：2008-05-06
申请号：US10505815
申请日：2003-03-05
申请人： Jeffrey S. Tolan , Corina Popovici
发明人： Jeffrey S. Tolan , Corina Popovici
IPC分类号： D21C9/10 , D21C9/14
CPC分类号： D21C5/005 , D21C9/10 , D21C9/1036 , D21C9/14
摘要： The present invention discloses methods of bleaching chemical pulp that use xylanase enzymes after chemical bleaching. The method comprises the steps of carrying out a chlorine dioxide stage to produce a partially bleached pulp, treating the partially bleached pulp with a xylanase enzyme, optionally in the presence of oxygen and hydrogen peroxide, in a mild extraction stage, then bleaching the pulp with a second chlorine dioxide stage. The method allows the mill to decrease the usage of sodium hydroxide or other alkali, while decreasing the use of chlorine dioxide, and possibly improving the yield and strength of the pulp, while maintaining a similar level of bleached brightness of the pulp. The pulp bleaching method of the present invention may be performed in a pulp mill as part of a complex pulp bleaching process.
摘要翻译：本发明公开了化学漂白后使用木聚糖酶的漂白化学纸浆的方法。该方法包括以下步骤：进行二氧化氯阶段以产生部分漂白的纸浆，在温和萃取阶段任选在氧气和过氧化氢存在下，用木聚糖酶处理部分漂白的纸浆，然后用纸浆漂白纸浆第二个二氧化氯阶段。该方法允许研磨机降低氢氧化钠或其他碱的用量，同时减少二氧化氯的使用，并且可能提高纸浆的产率和强度，同时保持纸浆的漂白亮度相似水平。本发明的纸浆漂白方法可以在纸浆厂中进行，作为复杂纸浆漂白方法的一部分。

2. 发明授权

US07320741B2 Method of xylanase treatment in a chlorine dioxide bleaching sequence 失效
标题翻译：在二氧化氯漂白顺序中木聚糖酶处理方法
公开(公告)号：US07320741B2
公开(公告)日：2008-01-22
申请号：US10466640
申请日：2002-01-18
申请人： Jeffrey S. Tolan , Corina Popovici , Luc Thibault
发明人： Jeffrey S. Tolan , Corina Popovici , Luc Thibault
IPC分类号： D21C3/18
CPC分类号： D21C9/1057 , D21C5/005
摘要： A method of bleaching chemical pulp with xylanase after chemical bleaching is provided. The method comprises the steps of exposing chemical pulp to a chlorine dioxide bleaching stage to produce a partially bleached pulp, treating the partially bleached pulp with a xylanase in an enzyme treatment stage at a pH of about 3 to about 8, then carrying out an alkaline extraction of the pulp. The pulp bleaching method of the present invention may be performed in a pulp mill as part of a complex pulp bleaching process.
摘要翻译：提供了化学漂白后用木聚糖酶漂白化学纸浆的方法。该方法包括以下步骤：将化学纸浆暴露于二氧化氯漂白阶段以产生部分漂白的纸浆，在约3至约8的pH的酶处理阶段用木聚糖酶处理部分漂白的纸浆，然后进行碱提取纸浆。本发明的纸浆漂白方法可以在纸浆厂中进行，作为复杂纸浆漂白方法的一部分。

3. 发明授权

US08911979B2 Recovery of inorganic salt during processing of lignocellulosic feedstocks 有权
标题翻译：在木质纤维素原料加工过程中回收无机盐
公开(公告)号：US08911979B2
公开(公告)日：2014-12-16
申请号：US13569308
申请日：2012-08-08
申请人： Brian Foody , Jeffrey S. Tolan , Ziyad Rahme , Vijay Anand
发明人： Brian Foody , Jeffrey S. Tolan , Ziyad Rahme , Vijay Anand
IPC分类号： C12P7/08 , C12P7/12 , C13K1/02 , C13K1/06 , B01D61/14 , B01B1/00 , B01D15/18 , B01D15/36 , B01D61/44 , C05B7/00 , C05C3/00 , C05D1/00 , C05D1/02 , C05D5/00 , C05F11/00 , C12P3/00 , C12P7/06 , C12P7/10 , C12P19/02
CPC分类号： B01D61/147 , B01B1/005 , B01D15/1821 , B01D15/365 , B01D61/44 , C01C1/28 , C01D3/04 , C01D5/04 , C01D5/16 , C05B7/00 , C05C3/00 , C05D1/00 , C05D1/02 , C05D5/00 , C05F11/00 , C12P3/00 , C12P7/06 , C12P7/10 , C12P19/02 , C12P2201/00 , Y02E50/16 , Y02E50/17
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。

4. 发明申请

US20130143278A1 RECYCLE OF LEACHATE DURING LIGNOCELLULOSIC CONVERSION PROCESSES 审中-公开
标题翻译：低密度脂蛋白转化过程中浸出液的回收率
公开(公告)号：US20130143278A1
公开(公告)日：2013-06-06
申请号：US13816267
申请日：2011-08-11
申请人： Jeffrey S. Tolan , Daphne Wahnon , David Geros
发明人： Jeffrey S. Tolan , Daphne Wahnon , David Geros
IPC分类号： C12P7/14 , C12P19/14
CPC分类号： C12P7/14 , C12P19/02 , C12P19/14 , C12P2201/00 , C13K1/02
摘要： The present invention provides a process for producing fermentable sugar or a fermentation product from a lignocellulosic feedstock. The process comprises leaching the lignocellulosic feedstock with an aqueous solution to remove at least potassium salts from the lignocellulosic feedstock and without significantly hydrolyzing hemicellulose and cellulose, thereby producing a leached feedstock and leachate. The leachate is removed from the leachate and concentrated. The leached feedstock is hydrolyzed to produce fermentable sugar, which may be fermented to produce a fermentation broth comprising the fermentation product. The concentrated leachate is recirculated to one or more stages in the process involving alkali addition to adjust the pH of a process stream.
摘要翻译：本发明提供了由木质纤维素原料生产可发酵糖或发酵产物的方法。该方法包括用水溶液浸提木质纤维素原料以从木质纤维素原料中除去至少钾盐，并且不显着水解半纤维素和纤维素，从而产生浸出的原料和浸出液。渗滤液从渗滤液中排出并集中。将浸出的原料水解以产生可发酵的糖，其可以被发酵以产生包含发酵产物的发酵液。浓缩的渗滤液在涉及碱添加的过程中再循环到一个或多个阶段以调节工艺流的pH。

5. 发明授权

US08247203B2 Recovery of inorganic salt during processing of lignocellulosic feedstocks 有权
标题翻译：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
申请人： Brian Foody , Jeffrey S. Tolan , Ziyad Rahme , Vijay Anand
发明人： Brian Foody , Jeffrey S. Tolan , Ziyad Rahme , Vijay Anand
IPC分类号： C12P7/08 , C12P7/12 , C13K1/02 , C13K1/06
CPC分类号： B01D61/147 , B01B1/005 , B01D15/1821 , B01D15/365 , B01D61/44 , C01C1/28 , C01D3/04 , C01D5/04 , C01D5/16 , C05B7/00 , C05C3/00 , C05D1/00 , C05D1/02 , C05D5/00 , C05F11/00 , C12P3/00 , C12P7/06 , C12P7/10 , C12P19/02 , C12P2201/00 , Y02E50/16 , Y02E50/17
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。

6. 发明授权

US07901511B2 Method of processing lignocellulosic feedstock for enhanced xylose and ethanol production 有权
公开(公告)号：US07901511B2
公开(公告)日：2011-03-08
申请号：US10467741
申请日：2002-02-27
申请人： Robert Griffin , Colin Nicholson , Corinne Mott , Jeffrey S. Tolan , Vijay Anand
发明人： Robert Griffin , Colin Nicholson , Corinne Mott , Jeffrey S. Tolan , Vijay Anand
IPC分类号： C13K1/02 , C13D1/14 , C12P7/06 , C12P7/08 , C12P7/10
CPC分类号： C13K1/02 , A23L33/21 , C12P7/10 , C12P19/02 , C12P19/14 , C12P2201/00 , Y02E50/16 , Y02E50/17
摘要： The present invention provides a method of producing xylose from lignocellulosic feedstock. The method comprises disrupting lignocellulosic feedstock; leaching the lignocellulosic feedstock by contacting the feedstock with at least one aqueous solution for a period greater than about 2 minutes to produce a leached feedstock and a leachate; removing the leachate from the leached feedstock; acidifying the leached feedstock to a pH between about 0.5 and about 3 to produce an acidified feedstock, and; reacting the acidified feedstock under conditions which disrupt fiber structure and hydrolyze a portion of hemicellulose and cellulose of the acidified feedstock, to produce a composition comprising xylose and a pretreated feedstock. The xylose may be purified from the pretreated feedstock or it may be converted to ethanol with the pretreated feedstock.

7. 发明授权

US07727746B2 Upflow reactor for enzymatic hydrolysis of cellulose 失效
标题翻译：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
申请人： Brian Foody , Ziyad Rahme , Jeffrey S. Tolan
发明人： Brian Foody , Ziyad Rahme , Jeffrey S. Tolan
IPC分类号： C12P19/14
CPC分类号： C12P19/14 , C12M45/09 , C12P19/02 , C12P19/04 , Y02E50/16 , Y02E50/17
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。

8. 发明申请

US20120209028A1 RECOVERY OF VOLATILE CARBOXYLIC ACIDS BY A STRIPPER-EXTRACTOR SYSTEM 有权
标题翻译：通过剥离器系统恢复挥发性羧酸
公开(公告)号：US20120209028A1
公开(公告)日：2012-08-16
申请号：US13392744
申请日：2010-08-18
申请人： Jeffrey S. Tolan , Brian Foody , Vijay Anand
发明人： Jeffrey S. Tolan , Brian Foody , Vijay Anand
IPC分类号： C07C51/42
CPC分类号： C12F3/00 , C07C51/43 , C07C51/445 , Y02E50/16 , C07C53/08
摘要： A process for recovering a volatile carboxylic acid from an aqueous stream comprising same, the process comprising the steps of: (i) steam stripping the carboxylic acid from the aqueous stream, which aqueous stream is produced by a conversion process using a lignocellulosic feedstock as a substrate, the steam stripping comprising contacting the aqueous stream with steam by flowing the aqueous stream and the steam countercurrent to one another, thereby producing a vapour stream comprising vapourized carboxylic acid and steam and a stripped aqueous stream; (ii) extracting the vapourized carboxylic acid with an organic solvent by contacting the vapour stream with the organic solvent to produce (a) a stream comprising the organic solvent and the carboxylic acid and (b) the steam at least substantially depleted of the carboxylic acid, wherein the organic solvent has an atmospheric boiling point of at least about 150° C. and is insoluble in water; (iii) returning the steam from step (ii) to the steam stripping step (step i) to further strip the carboxylic acid from the aqueous stream; and (iv) separating the carboxylic acid from the organic solvent.
摘要翻译：一种从包含其的含水流中回收挥发性羧酸的方法，该方法包括以下步骤：（i）从水流中汽提汽提羧酸，该水流通过使用木质纤维素原料的转化方法生产，蒸汽汽提包括通过使水流和蒸汽逆流地相互流动使水流与蒸汽接触，从而产生包含蒸发的羧酸和蒸汽和汽提的水流的蒸气流; （ii）通过使蒸气流与有机溶剂接触来提取挥发的羧酸，以产生（a）包含有机溶剂和羧酸的物流，和（b）至少基本上不含羧酸的蒸汽其中所述有机溶剂的常压沸点为至少约150℃，并且不溶于水; （iii）将来自步骤（ii）的蒸汽返回到汽提步骤（步骤i），以进一步从水流中分离出羧酸; 和（iv）从有机溶剂中分离出羧酸。

9. 发明申请

US20100221819A1 UPFLOW HYDROLYSIS REACTOR SYSTEM FOR HYDROLYZING CELLULOSE 审中-公开
标题翻译：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
申请人： Brian Foody , Ziyad Rahme , Jeffrey S. Tolan
发明人： Brian Foody , Ziyad Rahme , Jeffrey S. Tolan
IPC分类号： C12M1/00
CPC分类号： C12P19/14 , C12M45/09 , C12P19/02 , C12P19/04 , Y02E50/16 , Y02E50/17
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。

10. 发明申请

US20100184151A1 METHOD FOR THE PRODUCTION OF GLUCOSE FROM LIGNOCELLULOSIC FEEDSTOCKS 失效
标题翻译：用于生产来自木糖脂原料的葡萄糖的方法
公开(公告)号：US20100184151A1
公开(公告)日：2010-07-22
申请号：US12686485
申请日：2010-01-13
申请人： Jeffrey S. Tolan , Brian Foody
发明人： Jeffrey S. Tolan , Brian Foody
IPC分类号： C12P19/00 , C12P7/04
CPC分类号： C12P7/10 , C12P19/02 , C12P19/14 , C12P2201/00 , Y02E50/16
摘要： A method for producing glucose from a lignocellulosic feedstock is provided. The method comprises pretreating the lignocellulosic feedstock with acid to produce a pretreated feedstock composition. A calcium-containing stream is provided that comprises calcium that is obtained from the lignocellulosic feedstock and a calcium carbonate-containing stream is obtained by precipitation of the calcium from the calcium-containing stream. The pH of the pretreated feedstock is adjusted with (a) the calcium carbonate-containing stream; (b) a calcium hydroxide-containing stream that is derived from said calcium carbonate-containing stream by subjecting said calcium carbonate-containing stream to calcination; or (c) a combination of the calcium carbonate-containing stream and the calcium hydroxide-containing stream. The pH adjustment results in a neutralized pretreated lignocellulosic feedstock having a pH between about 3 and about 9 and enzymatic hydrolysis of the neutralized, pretreated lignocellulosic feedstock is then conducted with cellulase enzymes to produce the glucose.
摘要翻译：提供了一种从木质纤维原料生产葡萄糖的方法。该方法包括用酸处理木质纤维素原料以产生预处理的原料组合物。提供含钙流，其包含从木质纤维素原料获得的钙，并且通过从含钙流中沉淀钙获得含碳酸钙的流。用（a）含碳酸钙的料流调节预处理原料的pH; （b）通过使所述含碳酸钙的料流进行煅烧从含有所述含碳酸钙的料流中得到的含氢氧化钙的料流; 或（c）含碳酸钙的料流和含氢氧化钙的料流的组合。 pH调节导致pH为约3至约9的中和预处理木质纤维素原料，然后用纤维素酶进行中和的预处理的木质纤维素原料的酶水解以产生葡萄糖。

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