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1. 发明申请

WO2010121367A8 FRACTIONATION OF BIOMASS FOR CELLULOSIC ETHANOL AND CHEMICAL PRODUCTION 审中-公开
标题翻译：生物质的分解用于纤维素乙醇和化学生产
公开(公告)号：WO2010121367A8
公开(公告)日：2011-01-06
申请号：PCT/CA2010000582
申请日：2010-04-23
申请人： GREENFIELD ETHANOL INC , DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C08H8/00 , B01D36/00
CPC分类号： C08H8/00 , C08B37/0057 , Y02E50/16
摘要： A process is defined for the continuous steam pretreatment and fractionation of corn cobs and low lignin lignocellulosic biomass to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable chemicals are recovered by fractionating the liquid and vapor stream composed of hydrolysis and degradation products of the hemicellulose. Cellulosic derived glucose is produced for fermentation to biofuels. A hemicellulose concentrate is recovered that can be converted to value added products including ethanol.
摘要翻译：定义了一种用于玉米芯和低木质素木质纤维素生物质的连续蒸汽预处理和分馏以产生对酶水解敏感的浓缩纤维素固体物流的方法。通过分离由半纤维素的水解和降解产物组成的液体和蒸汽流来回收有价值的化学品。生产用于发酵的生物燃料的纤维素衍生的葡萄糖。回收可以转化成包括乙醇在内的增值产品的半纤维素浓缩物。

2. 发明申请

WO2012061939A8 CONTINUOUS PROCESS FOR THE PRODUCTION OF ETHANOL FROM LIGNOCELLULOSIC BIOMASS 审中-公开
标题翻译：连续生产乙醇的连续工艺
公开(公告)号：WO2012061939A8
公开(公告)日：2012-08-02
申请号：PCT/CA2011050692
申请日：2011-11-08
申请人： GREENFIELD ETHANOL INC , DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C12P7/10 , C08H8/00 , C12P19/00
CPC分类号： C12P7/10 , Y02E50/16
摘要： A continuous process for the recovery of ethanol from hemicellulose and cellulose from lignocellulosic biomass. Yield of fermentable sugars can be maximized by continuous operation of the pre-treatment system and careful selection of pretreatment conditions including the addition of only small amounts of dilute mineral acid and low pressure. With this approach, the xylose component that is mainly present in its unfermentable oligomeric form in known pre-hydrolysis Kraft processes can be recovered more efficiently and as a monomer that can be fermented by xylose fermenting yeasts and bacteria. Due to the use of only dilute acids, there is a very low loss of glucose and xylose hence very low production of toxic chemicals (e.g. HMF, furfural) in the pretreatment step. The resulting overall fermentation efficiency of both hexose and pentose sugars is 90 % of the theoretical maximum.
摘要翻译：从木质纤维素生物质从半纤维素和纤维素回收乙醇的连续方法。可以通过预处理系统的连续操作和仔细选择预处理条件（包括仅添加少量稀无机酸和低压）来最大化可发酵糖的产率。通过这种方法，在已知的预水解牛皮纸方法中主要以其不可发酵的低聚形式存在的木糖组分可以更有效地回收，并且可以作为可通过木糖发酵酵母和细菌而发酵的单体。由于仅使用稀酸，葡萄糖和木糖的损失非常低，因此在预处理步骤中有毒化学品（例如HMF，糠醛）的产生非常低。所得到的己糖和戊糖的总发酵效率为理论最大值的90％。

3. 发明专利

AU2012286490A1 Conditioning of biomass for improved C5/C6 sugar release prior to fermentation 未知
公开(公告)号：AU2012286490A1
公开(公告)日：2014-01-16
申请号：AU2012286490
申请日：2012-07-12
申请人： GREENFIELD ETHANOL INC
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C13K13/00 , C10L1/182 , C13K1/02 , D21C1/02
摘要： Disclosed is an improvement in a conventional process for C5 and C6 sugar recovery from lignocellulosic biomass for fermentation to ethanol, which process including the conventional steps of pretreatment of the biomass with steam at elevated temperature and pressure, collection of C5 sugars from hemicellulose breakdown, cellulose hydrolysis and collection of C6 sugars from cellulose breakdown. The improvement includes conditioning of the biomass prior to the pretreatment step by heating the biomass with steam for a time period between 5 minutes to 60 minutes to achieve a steam treated biomass having a temperature of about 80 to 100oC; and adjusting a moisture content of the steam treated biomass to about 45% to 80%. An increased recovery of C5 and C6 sugars is achieved compared to the conventional process

4. 发明专利

CA2714937C PRETREATMENT OF LIGNOCELLULOSIC BIOMASS THROUGH REMOVAL OF INHIBITORY COMPOUNDS 未知
公开(公告)号：CA2714937C
公开(公告)日：2011-08-02
申请号：CA2714937
申请日：2010-04-07
申请人： GREENFIELD ETHANOL INC
发明人： BENECH REGIS-OLIVIER , DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER
IPC分类号： C08H8/00 , C12P7/10 , C12P19/14 , C13K1/02
摘要： A process for the pretreatment of lignocellulosic biomass is disclosed. The process is intended for use in connection with biomass to ethanol processes and is directed in particular to an economical removal of inhibitory compounds generated in biomass pretreatment, which are inhibitory to downstream hydrolysis and fermentation steps. The process includes the steps of heating the lignocellulosic biomass with steam to a preselected temperature, at a preselected pressure and for a preselected time to hydrolyze and solubilize hemicelluloses in the biomass; explosively decomposing the biomass into fibers, and extracting from the resulting reaction mixture a liquefied portion of the lignocellulosic biomass before or after explosive decomposition. The liquefied portion is extracted to remove compounds from the lignocellulosic biomass which are inhibitory to enzymatic cellulose hydrolysis and sugar fermentation to ethanol. For improved efficiency and economy, the inhibitory compounds are not completely removed. Furthermore, xylose has been found to be a good indicator compound for the general level of inhibitory compounds in the reaction mixture and the extraction step is therefore controlled on the basis of the xylose content in the reaction mixture. In particular, the extracting step is discontinued once a dry matter (dm) content of xylose, as monomer or oligomer, in the reaction mixture of 4% to 8% (w/w dm) is achieved. This most economically balances the practical need for inhibitory compound removal with the economical need to control and preferably minimize the costs of the overall ethanol production process.

5. 发明专利

CA2757756A1 FED BATCH PROCESS FOR BIOCHEMICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL 未知
公开(公告)号：CA2757756A1
公开(公告)日：2010-10-07
申请号：CA2757756
申请日：2010-03-31
申请人： GREENFIELD ETHANOL INC
发明人： BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C12P19/14 , C12P19/00
摘要： A method for optimization of a fed-batch lignocellulosic biomass hydrolysis process wherein the hydrolysis time is minimized by controlling the feed addition volume and / or batch addition frequency of prehydrolysed lignocellulosic feed and optionally the enzyme feed. The increase over time in hydrolysate consistency and volume and / or concentration of sugars released in the reactor, so that the enzymatic hydrolysis is controlled, significantly reduces the impact of cellulase feedback inhibition, especially for enzyme contents lower than 0.5%. The overall time to reach conversion of the total prehydrolysate feed is reduced significantly where the batch addition frequency is equal to one batch each time 70% to 90% of a theoretical cellulose to glucose conversion is reached, preferably when 80% conversion is reached. At an enzyme load of 0.3% in the reaction mixture, the optimum frequency each time 80% conversion was reached was found to be one batch every 105 minutes.

6. 发明专利

AU2011325841B2 Bagasse fractionation for cellulosic ethanol and chemical production 未知
$Bagasse fractionation for cellulosic ethanol and chemical production$
公开(公告)号：AU2011325841B2
公开(公告)日：2016-01-07
申请号：AU2011325841
申请日：2011-11-04
申请人： GREENFIELD ETHANOL INC
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C08H8/00 , C12P7/10 , C12P19/00
摘要： A process is defined for the continuous steam pretreatment and fractionation of bagasse to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable chemicals are recovered by fractionating the liquid and vapor stream composed of hydrolysis and degradation products of the hemicellulose. Cellulosic derived glucose is produced for fermentation to biofuels. A hemicellulose concentrate is recovered that can be converted to value added products including ethanol.

7. 发明专利

ES2499490T3 Pretratamiento de biomasa lignocelulósica para eliminación de compuestos inhibidores 未知
公开(公告)号：ES2499490T3
公开(公告)日：2014-09-29
申请号：ES10766534
申请日：2010-04-07
申请人： GREENFIELD ETHANOL INC
发明人： BENECH REGIS-OLIVIER , DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER
摘要： Un procedimiento para pretratamiento de biomasa lignocelulósica, que comprende las etapas de calentar la biomasa lignocelulósica con vapor de agua a una temperatura preseleccionada, a una presión preseleccionada y durante un tiempo preseleccionado para hidrolizar y solubilizar las hemicelulosas de la biomasa lignocelulósica, descomponiendo de forma explosiva la biomasa lignocelulósica mediante la liberación rápida de la presión para descomponer la biomasa lignocelulósica en fibras y extrayendo de la mezcla de reacción resultante una porción licuada de la biomasa lignocelulósica antes o después de la descomposición explosiva, para la eliminación de compuestos de la biomasa lignocelulósica que son inhibitorios para la hidrólisis enzimática de la celulosa y de la fermentación de azúcar a etanol, caracterizado en que la etapa de extracción se interrumpe una vez alcanzado en la mezcla de reacción un contenido de materia seca (dm) del 4% al 8% (p/p dm) de xilosa, como monómero u oligómero.

8. 发明专利

DK2421911T3 Separation af reaktiv cellulose fra lignocellulosisk biomasse med højt ligninindhold 未知
公开(公告)号：DK2421911T3
公开(公告)日：2014-09-08
申请号：DK10766552
申请日：2010-04-23
申请人： GREENFIELD ETHANOL INC
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C08H8/00 , C12P7/10 , C13K13/00 , D21B1/36

9. 发明专利

CA2757756C FED BATCH PROCESS FOR BIOCHEMICAL CONVERSION OF LIGNOCELLULOSIC BIOMASS TO ETHANOL 未知
公开(公告)号：CA2757756C
公开(公告)日：2013-02-19
申请号：CA2757756
申请日：2010-03-31
申请人： GREENFIELD ETHANOL INC
发明人： BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C12P19/14 , C12P19/00
摘要： A method for optimization of a fed-batch lignocellulosic biomass hydrolysis process wherein the hydrolysis time is minimized by controlling the feed addition volume and / or batch addition frequency of prehydrolysed lignocellulosic feed and optionally the enzyme feed. The increase over time in hydrolysate consistency and volume and / or concentration of sugars re-leased in the reactor, so that the enzymatic hydrolysis is controlled, significantly reduces the impact of cellulase feedback inhibi-tion, especially for enzyme contents lower than 0.5%. The overall time to reach conversion of the total prehydrolysate feed is re-duced significantly where the batch addition frequency is equal to one batch each time 70% to 90% of a theoretical cellulose to glucose conversion is reached, preferably when 80% conversion is reached. At an enzyme load of 0.3% in the reaction mixture, the optimum frequency each time 80% conversion was reached was found to be one batch every 105 minutes.

10. 发明专利

CA2715458C SEPARATION OF REACTIVE CELLULOSE FROM LIGNOCELLULOSIC BIOMASS WITH HIGH LIGNIN CONTENT 未知
公开(公告)号：CA2715458C
公开(公告)日：2012-05-15
申请号：CA2715458
申请日：2010-04-23
申请人： GREENFIELD ETHANOL INC
发明人： DOTTORI FRANK A , BENSON ROBERT ASHLEY COOPER , BENECH REGIS-OLIVIER
IPC分类号： C08H8/00
摘要： A process for separating the components of lignocellulosic biomass for the purpose of producing a pure reactive cellulose is disclosed. The process has two stages. In the first stage, the lignocellulosic biomass is pretreated with steam, with or without an acid catalyst, and then pressed, with or without the presence of an eluent, to remove hemicellulose and other impurities. In the second stage, the pretreated biomass is extracted with a solvent such as ethanol with or without acid catalysts in order to remove lignin and release a purified cellulose stream. The extracted cellulose is then rapidly decompressed to rupture the fibrous structure. The process provides a purified cellulose stream that is relatively easy to hydrolyze with enzymes and ferment to biofuels and other chemicals such as ethanol.

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