公开(公告)号：US07972826B2

公开(公告)日：2011-07-05

申请号：US12863601

申请日：2009-02-02

Applicant: Jan Larsen ,  Henning Jørgensen

Inventor： Jan Larsen ,  Henning Jørgensen

IPC: C12P7/10 ,  C12Q1/54 ,  C12N9/42

CPC classification number: D21C5/005 ,  C12P7/10 ,  C12P19/02 ,  D21C1/00 ,  D21C11/0007 ,  Y02E50/16

Abstract: Provided are methods of liquefaction, saccharification and fermentation of pre-treated lignocellulosic biomass in production of bioethanol. Addition of PEG or surfactant is effective to enhance cellulase hydrolysis yields at high dry matter (>20%) at surprisingly low concentrations compared with comparable results in low dry matter hydrolysis. This effect is most pronounced at comparatively low cellulase loading

Abstract translation: 提供在生物乙醇生产中预处理的木质纤维素生物质的液化，糖化和发酵的方法。 与低干物质水解中可比较的结果相比，添加PEG或表面活性剂有助于在高干物质（> 20％）下以令人惊讶的低浓度提高纤维素酶水解产率。 在相对较低的纤维素酶负载量<7 FPU（g DM）-1下，这种作用最显着。 在高干物质含量下，通过加入少量的PEG或表面活性剂可以减少纤维素酶消耗而不损失水解产率。

公开(公告)号：US11118203B2

公开(公告)日：2021-09-14

申请号：US14418667

申请日：2013-08-01

Applicant: Inbicon A/S

Inventor： Jan Larsen ,  Niels Nielsen Poulsen ,  Martin Dan Jeppesen ,  Kit Kellebjerg Mogensen

IPC: C12P19/14 ,  C12P19/02 ,  C13K1/02 ,  C13K13/00 ,  D21C1/04 ,  C12P7/10 ,  D21C3/04

Abstract: The invention relates, in general, to methods of processing lignocellulosic biomass to fermentable sugars and to methods that rely on hydrothermal pretreatment. Xylose monomer yields comparable to those achieved using two-stage pretreatments can be achieved from soft lignocellulosic biomass feedstocks by pretreating to very low severity in a single-stage pressurized hydrothermal pretreatment, followed by enzymatic hydrolysis to release xylose retained in the solid state. In some embodiments, pretreated biomass is separated into a solid fraction and a liquid fraction, the solid fraction subjected to enzymatic hydrolysis, and the separated liquid fraction subsequently mixed with the hydrolysed solid fraction.

公开(公告)号：US20190271017A1

公开(公告)日：2019-09-05

申请号：US16347091

申请日：2017-11-06

Applicant: Inbicon A/S

Inventor： Martin Dan Jeppesen ,  Jan Larsen ,  Kit Haubjerg Mogensen ,  Anna Frederike Gossmann ,  Anna Granly Hansen ,  Laila Thirup ,  Lars Villadsgaard Toft ,  Hanne Risbjerg Sørensen

IPC: C12P19/02 ,  C12P19/14 ,  C13K1/02 ,  C12P7/10 ,  C07G1/00 ,  C08L95/00

Abstract: A method for providing a C5/C6 product from a lignocellulosic material is disclosed, said method comprising the steps: (i) pretreatment of the lignocellulosic material; (ii) solid/liquid separation of the pretreated lignocellulosic material from step (a) into a first solid fraction and a first liquid fraction; (iii) enzymatic fiber hydrolysis of said first solid fraction from step (b) by use of an enzyme composition capable of degrading lignocellulosic material, thereby providing a C5/C6 fiber slurry comprising C5 and/or C6 sugars; (iv) solid/liquid separation of the C5/C6 fiber slurry from step (c) into a second solid fraction and a second liquid fraction; and optionally (v) combining said first liquid fraction and said second liquid fraction for enzymatic mixed sugar hydrolysis (MSH), whereby a MSH C5/C6 product is provided.

公开(公告)号：US10087578B2

公开(公告)日：2018-10-02

申请号：US14910531

申请日：2014-08-11

Applicant: Inbicon A/S

Inventor： Jesper Dohrup ,  Brian Eskesen ,  Kit Kellebjerg Mogensen

IPC: B01J3/02 ,  D21C1/10 ,  C10L5/44 ,  C10L9/08 ,  B01J3/00 ,  B01J3/04 ,  D21C1/02

Abstract: Provided is a discharge device for discharging pretreated biomass from a pressurized reactor. The device comprises: a vessel having an opening to a high pressure region at the top, and configured to be connected with a pressurized biomass pretreatment device; one or more inlet openings situated along the sides of the vessels through which water or liquid may be added; an orifice or valve at a lower part of said vessel, said orifice or valve being configured to eject pretreated biomass, optionally into a pipeline. The discharge device is characterised in that it comprises mechanical agitation means, said agitation means comprising an agitation element arranged in the interior of said vessel at a lower part of said vessel, and being configured to provide agitation of the content of said vessel, wherein said agitation means being adapted to withstand a pressure in the interior of a said vessel of 10 bar or more. The agitation means provides for a temperature equalization within a specific vertical range of heights of an aqueous slurry present in said vessel, thereby eliminating disadvantages of the prior art devices and methods.

公开(公告)号：US09758843B2

公开(公告)日：2017-09-12

申请号：US14378332

申请日：2013-01-16

Applicant: INBICON A/S

Inventor： Jan Larsen ,  Kit Kellebjerg Mogensen ,  Pia Jørgensen

IPC: C13K13/00 ,  C12P19/02 ,  C12P19/14 ,  C12P7/10

CPC classification number: C13K13/002 ,  C12P7/10 ,  C12P19/02 ,  C12P19/14 ,  C12P2201/00 ,  Y02E50/16

Abstract: The invention relates to a method of processing lignocellulosic biomass comprising: providing lignocellulosic biomass feedstock; pretreating said biomass feedstock by continuous hydrothermal pretreatment in a pressurized reactor; measuring xylan number or lignin number in the output stream of pretreated biomass from the pretreatment reactor; and controlling the pretreatment reactor so as to maintain, in the output stream of pretreated biomass, a pre-determined level of measured xylan number or lignin number. The method allows for continuously controlling the digestibility of a lignocellulosic biomass during the step of pretreatment, and accordingly provides a continuous estimate of the severity of the pretreatment.

公开(公告)号：US09657249B2

公开(公告)日：2017-05-23

申请号：US12996392

申请日：2009-06-04

Applicant: Jakob Vibe-Pedersen ,  Frank Krogh Iversen

Inventor： Jakob Vibe-Pedersen ,  Frank Krogh Iversen

IPC: B01F5/00 ,  B01F15/02 ,  B01J4/00 ,  C10J3/50 ,  C10L1/32 ,  C10L5/44

CPC classification number: C10L5/44 ,  B01J4/002 ,  B01J2204/005 ,  C10J3/506 ,  C10J2200/15 ,  C10J2300/0903 ,  C10J2300/0916 ,  C10L1/326 ,  Y02E50/10 ,  Y02E50/30

Abstract: Provided are devices and methods for discharging pretreated biomass from a pressurized reactor. Pretreated, hot biomass is added under high pressure at the top of a discharge vessel, which is partially filled with water or aqueous solution. The vessel comprises water jets situated on its sides through which water or aqueous solution is injected in order to establish a strong turbulence in the lower part of the vessel. This turbulence, preferably a vortex turbulence or “hydrocyclone,” blends biomass and water and disintegrates any clumped material prior to its ejection at high speed as a slurry through an orifice or valve at the bottom of the vessel. A stable temperature stratification is established within the discharge vessel, whereby hot water remains at the top of the vessel, reducing heat and steam loss from the pretreatment reactor.

公开(公告)号：US09211515B2

公开(公告)日：2015-12-15

申请号：US13062522

申请日：2010-08-27

Applicant: Jens Fink ,  Niels Nielsen Poulsen

Inventor： Jens Fink ,  Niels Nielsen Poulsen

IPC: B01J8/00 ,  B01J3/02 ,  B65G53/48

CPC classification number: B01J8/002 ,  B01J3/02 ,  B01J8/0015 ,  B01J8/0035 ,  B01J2208/00743 ,  B01J2208/00752 ,  B01J2208/00761 ,  B01J2208/00769 ,  B65G53/48 ,  C12P2201/00 ,  Y02E50/32 ,  Y10T137/87917

Abstract: Methods and devices are provided for transfer of particulate material, such as biomass feedstocks, into and out of pressurized reactors. Improved sluice devices have an L-shaped sluice chamber having an upper, vertical component in communication with a horizontal loading chamber and a lower component in communication with a vertical reactor inlet or outlet. Piston valves seal the sluice inlet and outlet by axial displacement across the vertical component of the sluice chamber and across the vertical reactor inlet or outlet. Relative to other methods for reactor unloading, these devices consume less steam and significantly reduce furfural content of unloaded, pretreated biomass. An optional hybrid plug/sluice method of biomass feeding using the devices permits biomass loading at sluice pressures intermediate between atmospheric and reactor pressure, thereby reducing “pump cycle” time and increasing biomass throughput capacity.

公开(公告)号：US20150299734A1

公开(公告)日：2015-10-22

申请号：US14253890

申请日：2014-04-16

Applicant: Inbicon A/S

Inventor： Jan Larsen

IPC: C12P7/06

CPC classification number: C12P7/06 ,  A01N65/44 ,  C12N1/16 ,  C12N1/22 ,  C12P7/10 ,  Y02E50/16 ,  Y02E50/17

Abstract: A range of concentrations exists in which fermentation inhibitors derived from pretreatment of lignocellulosic feed stocks inhibit growth of lactic acid bacteria without affecting fermentive yeast. By optimizing levels of fermentation inhibitors to fall within this range, yeast fermentations of lignocellulosic biomass can be conducted under non-sterile conditions with ethanol yields comparable to those achieved under sterile conditions. Optimised inhibitor levels can be achieved by controlling the water/biomass ratio of a lignocellulosic biomass during and after pretreatment, for example by washing the fiber fraction of a previously pretreated lignocellulosic biomass with a pre-defined amount of fresh water or recycled process solutions. Crude extracts of liquid fraction or process solutions from pretreatment of lignocellulosic biomass can also provide an effective anti-baterial treatment for first generation starch fermentations.

Abstract translation: 存在一定范围的浓度，其中衍生自木质纤维素原料的预处理的发酵抑制剂抑制乳酸菌的生长而不影响发酵酵母。 通过优化发酵抑制剂的含量落在此范围内，木质纤维素生物质的酵母发酵可以在非无菌条件下进行，乙醇产量与在无菌条件下达到的相似。 优化的抑制剂水平可以通过在预处理期间和之后控制木质纤维素生物质的水/生物量比来实现，例如通过用预定量的淡水或再循环的处理溶液洗涤先前预处理的木质纤维素生物质的纤维部分。 来自木质纤维素生物质预处理的液体馏分或处理溶液的粗提取物也可为第一代淀粉发酵提供有效的抗物质处理。

公开(公告)号：US08703453B2

公开(公告)日：2014-04-22

申请号：US13356664

申请日：2012-01-24

Applicant: Jan Larsen

Inventor： Jan Larsen

IPC: C12P7/06

CPC classification number: C12P7/06 ,  A01N43/08 ,  A01N61/00 ,  A01N65/00 ,  A01N65/44 ,  C12N1/22 ,  C12P7/10 ,  C12P2201/00 ,  Y02E50/16 ,  Y02E50/17

Abstract: A range of concentrations exists in which fermentation inhibitors derived from pretreatment of lignocellulosic feed stocks inhibit growth of lactic acid bacteria without affecting fermentive yeast. By optimizing levels of fermentation inhibitors to fall within this range, yeast fermentations of lignocellulosic biomass can be conducted under non-sterile conditions with ethanol yields comparable to those achieved under sterile conditions. Optimised inhibitor levels can be achieved by controlling the water/biomass ratio of a lignocellulosic biomass during and after pretreatment, for example by washing the fiber fraction of a previously pretreated lignocellulosic biomass with a pre-defined amount of fresh water or recycled process solutions. Crude extracts of liquid fraction or process solutions from pretreatment of lignocellulosic biomass can also provide an effective anti-baterial treatment for first generation starch fermentations.

Abstract translation: 存在一定范围的浓度，其中衍生自木质纤维素原料的预处理的发酵抑制剂抑制乳酸菌的生长而不影响发酵酵母。 通过优化发酵抑制剂的含量落在此范围内，木质纤维素生物质的酵母发酵可以在非无菌条件下进行，乙醇产量与在无菌条件下达到的相似。 优化的抑制剂水平可以通过在预处理期间和之后控制木质纤维素生物质的水/生物量比来实现，例如通过用预定量的淡水或再循环的处理溶液洗涤先前预处理的木质纤维素生物质的纤维部分。 来自木质纤维素生物质预处理的液体馏分或处理溶液的粗提取物也可为第一代淀粉发酵提供有效的抗物质处理。

公开(公告)号：US20130269631A1

公开(公告)日：2013-10-17

申请号：US13996011

申请日：2011-12-21

Applicant: Henrik Boye Jørgensen ,  Henning Andersen

Inventor： Henrik Boye Jørgensen ,  Henning Andersen

IPC: F01K17/02 ,  F22B1/18 ,  F22B1/08

CPC classification number: F22B1/1861 ,  F01K7/40 ,  F01K17/02 ,  F01K17/06 ,  F22B1/08 ,  Y02E20/14 ,  Y02E50/343

Abstract: The present invention relates to delivery of steam produced by an electrical power generation plant to a lignocellulosic biomass refinery.

Abstract translation: 本发明涉及将由发电厂产生的蒸汽输送到木质纤维素生物质精炼厂。