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    HIGH CONSISTENCY ENZYMATIC HYDROLYSIS FOR THE PRODUCTION OF ETHANOL
    1.
    发明申请
    HIGH CONSISTENCY ENZYMATIC HYDROLYSIS FOR THE PRODUCTION OF ETHANOL 审中-公开
    用于生产乙醇的高度一致的酶水解

    公开(公告)号：US20120036768A1

    公开(公告)日：2012-02-16

    申请号：US13130521

    申请日：2009-11-23

    申请人： Richard Phillips ,  Hasan Jameel ,  Hou-Min Chang

    发明人： Richard Phillips ,  Hasan Jameel ,  Hou-Min Chang

    IPC分类号： C10L1/182 ,  C12P7/14 ,  C07C31/08 ,  C12P7/02

    CPC分类号： C12P7/10 ,  C12P19/02 ,  Y02E50/16

    摘要： The presently disclosed subject matter related to methods of converting lignocellulosic materials to alcohol that include increasing the fiber consistency of enzymatic hydrolysis mixtures. More particularly, the methods involve contacting lignocellulosic biomass with an enzyme composition for a period of time, and then thickening the mixture and further hydrolyzing the thickened mixture. The thickening can be performed by filtration, optionally reusing the filtrate and/or any enzymes contained therein during the lignocellulose conversion process to increase the efficiency of the process. Hydrolysis of the thickened mixture provides a fermentable sugar mixture having a higher concentration of sugar than fermentable sugar mixtures provided from less concentrated biomass/enzyme mixtures. Compositions comprising alcohol prepared according to the presently disclosed methods are also provided.

    摘要翻译： 目前公开的与木质纤维素材料转化为醇的方法有关的主题涉及增加酶水解混合物的纤维稠度。 更具体地说，所述方法包括将木质纤维素生物质与酶组合物接触一段时间，然后使混合物增稠并进一步水解增稠的混合物。 可以通过过滤进行增稠，任选地在木质纤维素转化过程中重复使用滤液和/或其中所含的任何酶以提高该方法的效率。 增稠混合物的水解提供了具有比由较不浓缩的生物质/酶混合物提供的可发酵糖混合物更高浓度糖的可发酵糖混合物。 还提供了包含根据本发明公开的方法制备的醇的组合物。

    PRODUCTION OF ETHANOL FROM LIGNOCELLULOSIC BIOMASS USING GREEN LIQUOR PRETREATMENT
    2.
    发明申请
    PRODUCTION OF ETHANOL FROM LIGNOCELLULOSIC BIOMASS USING GREEN LIQUOR PRETREATMENT 审中-公开
    使用绿色液体预处理从木质纤维生物量生产乙醇

    公开(公告)号：US20110314726A1

    公开(公告)日：2011-12-29

    申请号：US13130516

    申请日：2009-11-23

    申请人： Hasan Jameel ,  Richard Phillips ,  Hou-Min Chang ,  Yongcan Jin

    发明人： Hasan Jameel ,  Richard Phillips ,  Hou-Min Chang ,  Yongcan Jin

    IPC分类号： C10L1/182 ,  C12P7/10 ,  C12P7/02

    CPC分类号： C12P7/10 ,  C12P19/02 ,  Y02E50/16

    摘要： A method of producing an alcohol from lignocellulosic biomass is provided wherein the lignocellulosic biomass is pretreated with an alkaline mixture of sodium carbonate and sodium sulfate, i.e., green liquor, prior to enzymatic hydrolysis and fermentation. Pretreatment with the green liquor increases the efficiency of the enzymatic hydrolysis. Both the alcohol produced from the fermentation and the lignin that dissolves into the green liquor during pretreatment can also be used as fuels.

    摘要翻译： 提供了从木质纤维素生物质生产醇的方法，其中木质纤维素生物质在酶水解和发酵之前用碳酸钠和硫酸钠的碱性混合物，即绿液预处理。 用绿液预处理可提高酶水解的效率。 在预处理过程中，从发酵产生的醇和溶解在绿液中的木质素也可以用作燃料。

    Process for obtaining seed hull commodities including cellulosic fibers and xylitol
    5.
    发明授权
    Process for obtaining seed hull commodities including cellulosic fibers and xylitol 失效
    获得种子壳商品的方法，包括纤维素纤维和木糖醇

    公开(公告)号：US4087316A

    公开(公告)日：1978-05-02

    申请号：US723625

    申请日：1976-09-15

    申请人： Gay M. Jividen ,  Hou-Min Chang ,  R. Heath Reeves ,  Chen-Loung Chen

    发明人： Gay M. Jividen ,  Hou-Min Chang ,  R. Heath Reeves ,  Chen-Loung Chen

    IPC分类号： C13K13/00 ,  D21C3/02 ,  D21C5/00 ,  D21C9/08

    CPC分类号： C13K13/002 ,  D21C3/026 ,  D21C5/00

    摘要： Cellulosic fibers are removed from seed hulls such as cottonseed hulls by a process including (a) in the absence of mechanical action sufficient to cause degradation of fiber properties, contacting the seed hulls which comprise both cellulosic fibers (linters and hull fibers) and non-fibrous hull components with an alkaline solution and an oxygen-containing gas until the cellulosic fibers are substantially free of the non-fibrous hull components, and (b) recovering the cellulosic fibers from the non-fibrous hull components so as to produce readily washable cellulosic fibers having substantially unimpaired mechanical properties. The cellulosic fibers may then be washed and separated according to known fiber fractionation procedures. The cellulosic fibers produced according to this improved process have substantially unimpaired mechanical properties and contain substantially no polyphenolic materials or extraneous color components. The process provides a more selective and complete removal of polyphenolic materials and extraneous color material requiring less alkali and resulting in higher carbohydrate yields than prior art processes. The process eliminates or significantly alleviates the noise and respiratory dangers of certain known mechanical delinting processes.Other seed hull commodities may also be obtained. These other seed hull commodities include hull residue containing xylan which may be further treated to produce xylose and xylitol. Xylose is produced by hydrolyzing the xylan such as by dilute sulfuric acid treatment. Xylitol may be produced by catalytically hydrogenating xylose hydrolyzate solution and then crystallizing xylitol directly from the hydrogenated hydrolyzate solution.

    摘要翻译： 纤维素纤维通过包括（a）在不存在引起纤维性能下降的机械作用的方法从种皮壳如棉籽壳中除去的过程中，使包含纤维素纤维（短纤维和船体纤维）和非纤维素纤维两者的种皮壳接触， 直到纤维素纤维基本上没有非纤维性船体部件为止，并且（b）从非纤维性船体部件回收纤维素纤维，以便制备容易洗涤的纤维素 纤维具有基本上未受损的机械性能。 然后可以根据已知的纤维分级方法洗涤和分离纤维素纤维。 根据该改进方法生产的纤维素纤维具有基本上未受损的机械性能，并且基本上不含多酚材料或外来颜色成分。 该方法提供了比现有技术方法更多选择性和完全去除多酚材料和外来色素，其需要较少的碱并导致更高的碳水化合物产量。 该过程消除或显着减轻了某些已知的机械变形过程的噪声和呼吸危险。

    Deinking of xerographic printed wastepaper using long chain alcohol
    6.
    发明授权
    Deinking of xerographic printed wastepaper using long chain alcohol 失效
    使用长链醇脱墨印刷废纸

    公开(公告)号：US5500082A

    公开(公告)日：1996-03-19

    申请号：US54179

    申请日：1993-04-26

    申请人： Hou-Min Chang ,  Tien-Wang Wu ,  John A. Heitmann

    发明人： Hou-Min Chang ,  Tien-Wang Wu ,  John A. Heitmann

    IPC分类号： D21C5/02

    CPC分类号： D21C5/025 ,  D21C5/027 ,  Y02W30/648

    摘要： Disclosed is a method of removing ink from xerographically printed paper. The method comprises pulping said printed paper in an aqueous slurry at a non-acidic pH to a consistency of about 8% or less. Next, added to the pulp slurry is a sufficient amount of long chain alcohol, the long chain alcohol having a melting point above room temperature, for a time sufficient with heating at a temperature sufficient, whereby an agglomeration of long chain alcohol and ink particles is formed. Next, the heating is stopped whereby the agglomeration solidifies into particles that settle to the bottom of the pulp slurry. Then, the agglomeration of solidified particles is removed from the pulp slurry thereby leaving a remaining slurry of deinked paper fiber and water. Optionally, the remaining slurry is subjected to flotation to remove substantially any remaining minute ink left particles behind after the agglomeration.

    摘要翻译： 公开了从静电印刷纸上去除油墨的方法。 该方法包括将所述印刷纸在非酸性pH下的含水浆料中制浆至约8％或更低的稠度。 接下来，向纸浆中加入足量的长链醇，长链醇的熔点高于室温，时间足以在足够的温度下加热，由此长链醇和油墨颗粒的聚集是 形成。 接下来，停止加热，由此附聚固化成沉降到纸浆浆料底部的颗粒。 然后，从纸浆中除去固化颗粒的附聚物，从而留下脱墨纸纤维和水的剩余浆液。 任选地，将剩余的浆料进行浮选以在凝聚后基本上除去任何残留的微量墨留下的颗粒。