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1. 发明申请

US20220348968A1 PRETREATMENT WITH SULFUR DIOXIDE AND PH ADJUSTMENT 有权
公开(公告)号：US20220348968A1
公开(公告)日：2022-11-03
申请号：US17594970
申请日：2020-04-02
申请人： IOGEN CORPORATION
发明人： Daniel G. MACDONALD , Jeffrey S. TOLAN , Douglas A. MACKENZIE
IPC分类号： C12P7/10 , D21C1/04 , C12P19/02 , C12P19/14 , C08H8/00 , C10G1/00
摘要： A process for producing a fuel from lignocellulosic biomass is disclosed. The process includes obtaining a feedstock comprising lignocellulosic biomass, pretreating a slurry containing the lignocellulosic feedstock, sulfur dioxide, and optionally a bisulfite salt, at temperatures between 110° C. and 160° C. for at least 30 minutes. The pretreatment includes subjecting the slurry to a pH adjustment, which includes adding alkali to the slurry, removing lignosulfonic acid from the slurry, or a combination thereof.

2. 发明申请

US20210237024A1 A REACTOR VESSEL FOR BIOMASS MATERIAL 有权
公开(公告)号：US20210237024A1
公开(公告)日：2021-08-05
申请号：US17049196
申请日：2019-03-29
申请人： VALMET AB
发明人： Stefan MELLANDER , Johan CARLSSON , Lars FREDRIKSSON , Francois LAMBERT
IPC分类号： B01J19/20 , B01J3/04 , D21C1/02 , D21C1/04 , D21C7/06 , D21C7/08
摘要： A reactor vessel (1) for biomass material, wherein said reactor vessel (1) is a pressurized reactor vessel, said reactor vessel being elongated and comprising: a substantially tubular vessel part (3); two gables (5a, 5b) connected one to each end (19a, 19b) of the tubular vessel part (3), hereby enclosing a vessel internal compartment (7); and a material transporting screw (8) comprising a central shaft (9) provided within the vessel internal compartment (7) extending between the two gables (5a, 5b) along a central axis (A) of the reactor vessel (1), wherein said material transporting screw further comprises screw flight (11) provided around the shaft (9), wherein said material transporting screw is configured for transporting the biomass material through the reactor vessel, wherein both gables (5a, 5b) are inwardly dished.

3. 发明授权

US10519477B2 Self-sufficient process for the production of biomass hydrolysate with reduced salt content 有权
公开(公告)号：US10519477B2
公开(公告)日：2019-12-31
申请号：US15758727
申请日：2016-08-19
申请人： Clariant International Ltd.
发明人： Michael Zavrel , Danielle Dennewald , Philip Hoffmann , Marcus Verhuelsdonk
IPC分类号： C12P19/20 , C12P19/14 , C12P19/02 , C13K1/02 , D21C1/02 , D21C1/04
摘要： The present invention is directed to a self-sufficient process for the production of biomass hydrolysate with reduced salt content as well as the de-salted hydrolysate produced after the inventive process and the use of the de-salted hydrolysate as a fermentation medium.

4. 发明申请

US20190077885A1 CELLULOSE ACETATE 审中-公开
公开(公告)号：US20190077885A1
公开(公告)日：2019-03-14
申请号：US16081373
申请日：2016-03-15
申请人： DAICEL CORPORATION
发明人： Hiroyuki MATSUMURA , Keita TAKAHASHI
IPC分类号： C08B3/06 , D21C1/04 , D21C3/04 , D21C3/26
摘要： Disclosed herein is cellulose acetate that has excellent heat stability under wet conditions and is capable of reducing the occurrence of end-breakage in a spinning process.Cellulose acetate satisfying the following formula (1): [Mg/H2SO4]>0,[Ca/H2SO4]>0, and 2.70−[Mg/H2SO4])/1.62≤[Ca/H2SO4]≤(37.7−[Mg/H2SO4])/10.3 (1), where the formula (1) represents a relationship between a chemical equivalent ratio of calcium content to residual sulfuric acid content [Ca/H2SO4] and a chemical equivalent ratio of magnesium content to residual sulfuric acid content [Mg/H2SO4].

5. 发明申请

US20180016607A1 CONTROLLING THE PRETREATMENT OF A SOFTWOOD STARTING MATERIAL 审中-公开
公开(公告)号：US20180016607A1
公开(公告)日：2018-01-18
申请号：US15547833
申请日：2016-01-20
申请人： SEKAB E-TECHNOLOGY AB
发明人： Karin HÄGGLUND
IPC分类号： C12P19/02 , D21C1/02 , C12P19/14 , D21C1/04
CPC分类号： C12P19/02 , C12P19/14 , C12P2201/00 , C12Y302/01004 , C13K1/02 , D21C1/02 , D21C1/04 , Y02E50/16
摘要： The present invention relates to a method for pretreating a softwood starting material comprising the following steps: a) pretreating the softwood starting material in a pretreatment process to form a slurry; b) measuring the concentration of glucose and the concentration of mannose in the slurry formed in step a); c) calculating a ratio glucose:mannose from the concentrations measured in step b) d) comparing the ratio calculated in step c) to a reference value and if the ratio calculated in step c) differs from the reference value, controlling at least one process parameter of the pretreatment process in response to the difference.

6. 发明授权

US09863090B2 Process operations for biomass fractionation 有权
$Process operations for biomass fractionation$
公开(公告)号：US09863090B2
公开(公告)日：2018-01-09
申请号：US14770286
申请日：2014-02-26
申请人： Bio-Sep Limited
发明人： Malcolm Gilbert Gates , Anthony Robin McGarel-Groves , Nigel Donald Anderson , Kenneth John Coryton Day , Patrick Leahy , Geoffrey Nicholas Drage
IPC分类号： D21C11/00 , D21C1/00 , D21C3/00 , D21C5/00 , C08H7/00 , C08H8/00 , C07G1/00 , C08B37/00 , D21C1/04 , D21C1/10
CPC分类号： D21C11/0007 , C07G1/00 , C08B37/006 , C08H6/00 , C08H8/00 , D21C1/00 , D21C1/04 , D21C1/10 , D21C3/00 , D21C5/00 , Y02P70/24
摘要： There is described a method of fractionating a biomass material comprising: (i) blending the biomass material with an acid catalyst to form a slurry; (ii) mixing the slurry with an organosolv reagent optionally under an inert atmosphere to form a pre-treatment mix; (iii) subjecting the pre-treatment mix to sonication; (iv) optionally heating the product of step (iii) in an autoclave under pressure; (v) separating the solid and liquid components of the fractionation mix; (vi) optionally washing the solid; (vii) optionally drying the solid component; (viii) separating the liquid component into organic and aqueous components; and (ix) isolating lignin from the organic component and/or isolating hemi-cellulose from the aqueous component.

7. 发明申请

US20170362618A1 HIGH SOLIDS ENZYMATIC HYDROLYSIS AND FERMENTATION OF PRETREATED BIOMASS 审中-公开
公开(公告)号：US20170362618A1
公开(公告)日：2017-12-21
申请号：US15534840
申请日：2015-12-11
申请人： Abengoa Bioenergy New Technologies, LLC
发明人： Quang A. Nguyen
IPC分类号： C12P19/02 , D21C1/04 , C12P19/14 , D21C1/02 , D21C5/00 , D21C1/06
CPC分类号： C12P19/02 , C12P19/14 , C12P2201/00 , D21C1/02 , D21C1/04 , D21C1/06 , D21C5/005
摘要： The present disclosure generally relates to a methods and systems for conversion of chemically pretreated lignocellulosic biomass to monosaccharides by enzymatic hydrolysis at high total solids concentration to provide for increased throughput and reduced enzyme usage in commercial scale processes.

8. 发明申请

US20160298292A1 BIOMASS TREATMENT FOR HYDROTHERMAL HYDROCATALYTIC CONVERSION 审中-公开
公开(公告)号：US20160298292A1
公开(公告)日：2016-10-13
申请号：US15190386
申请日：2016-06-23
申请人： SHELL OIL COMPANY
发明人： Joseph Broun POWELL , Juben Nemchand CHHEDA
IPC分类号： D21C1/04 , D21C1/06 , D21C3/00 , C10G3/00
CPC分类号： D21C1/04 , C10G3/42 , C10G3/44 , C10G3/50 , C10G2300/1011 , D21C1/02 , D21C1/06 , D21C3/00 , D21C3/02 , D21C3/04 , Y02P30/20
摘要： A selective removal of metal and its anion species that are detrimental to subsequent hydrothermal hydrocatalytic conversion from the biomass feed prior to carrying out catalytic hydrogenation/hydrogenolysis/hydrodeoxygenation of the biomass in a manner that does not reduce the effectiveness of the hydrothermal hydrocatalytic treatment while minimizing the amount of water used in the process is provided.

9. 发明授权

US09416494B2 Modified cellulosic fibers having reduced hydrogen bonding 有权
标题翻译：具有降低的氢键的改性纤维素纤维
公开(公告)号：US09416494B2
公开(公告)日：2016-08-16
申请号：US14359833
申请日：2013-12-20
申请人： Kimberly-Clark Worldwide, Inc.
发明人： Stephen Michael Lindsay , Michael Andrew Zawadzki , Jian Qin
IPC分类号： D21H11/20 , D21H27/00 , D21C9/00 , D21H11/16 , D21C1/04
CPC分类号： D21H11/20 , D21C1/04 , D21C9/005 , D21H11/16 , D21H27/002
摘要： The present invention provides a modified cellulosic fiber having reduced hydrogen bonding capabilities. The modified fiber formed in accordance with the present invention may be useful in the production of tissue products having improved bulk and softness. More importantly, the modified fiber is adaptable to current tissue making processes and may be incorporated into a tissue product to improve bulk and softness without an unsatisfactory reduction in tensile.
摘要翻译：本发明提供具有降低的氢键能力的改性纤维素纤维。根据本发明形成的改性纤维可用于生产具有改善体积和柔软度的纸巾制品。更重要的是，改性纤维适用于当前的组织制备方法，并且可以并入组织产品中以改善体积和柔软度，而不会令人不满意的拉伸减小。

10. 发明授权

US09371612B2 Method and apparatus to produce pulp using pre-hydrolysis and Kraft cooking 有权
标题翻译：使用预水解和牛皮纸蒸煮来生产纸浆的方法和设备
公开(公告)号：US09371612B2
公开(公告)日：2016-06-21
申请号：US13363680
申请日：2012-02-01
申请人： Aaron Leavitt , Jussi Pakarinen , Brian F. Greenwood
发明人： Aaron Leavitt , Jussi Pakarinen , Brian F. Greenwood
IPC分类号： D21C1/04 , D21C3/02 , D21C3/24
CPC分类号： D21C1/04 , D21C3/02 , D21C3/24
摘要： A pulp cooking system including: a cellulosic material feed system, a pre-hydrolysis reactor vessel and a Kraft cooking reactor vessel. The feed material system includes a steaming chip bin and a high pressure transfer device. The pre-hydrolysis reactor vessel maintains the feed material in a mildly acidic condition and allows hydrolysate to be extracted through screens below a hydrolysis zone in the vessel. A wash zone is below the screens and allows wash liquid to flow through the feed material in a cross-current direction. The wash liquid and hydrolysate removed from the feed material is extracted through the screens. The feed material is maintained in a mildly acidic condition through the pre-hydrolysis reactor vessel until the material enters the Kraft cooking vessel where the feed material is treated with alkaline cooking liquors.
摘要翻译：一种纸浆蒸煮系统，包括：纤维素材料进料系统，预水解反应器容器和硫酸盐蒸煮反应器容器。进料系统包括蒸汽屑仓和高压输送装置。预水解反应器容器将进料保持在温和的酸性状态，并允许水解物通过容器中水解区下方的筛网提取。洗涤区位于筛网的下面，并允许洗涤液体在横向电流方向上流过进料。从进料中除去的洗涤液和水解物通过筛子提取。饲料通过预水解反应器容器保持在温和的酸性状态，直到材料进入硫酸盐蒸煮容器，其中饲料用碱性烹饪液处理。

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