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    • 1. 发明申请
    • PROCESS FOR THE HYDROLYSIS OF CELLULOSE
    • 水解纤维素的方法
    • WO2010124944A1
    • 2010-11-04
    • PCT/EP2010/055030
    • 2010-04-16
    • HELI INOVATIO HANDELSBOLAGHENRIKSSON, GunnarLINDSTRÖM, Mikael
    • HENRIKSSON, GunnarLINDSTRÖM, Mikael
    • C13K1/02C12P7/06C12P7/10
    • C13K1/02C12P7/10C12P19/02Y02E50/16Y02E50/17
    • There is disclosed a process for the hydrolysis of cellulose comprising the sequential steps (a) mixing cellulose with a viscosity below 900 ml/g with an aqueous solution to obtain a liquid, wherein particles comprising cellulose in said liquid have a diameter of maximum 200 nm, wherein the temperature of the aqueous solution is below 35°C, and wherein the pH of the aqueous solution is above 12, (b) subjecting the liquid to at least one of the steps: (i) decreasing the pH of the liquid with at least 1 pH unit and (ii) increasing the temperature by at least 20°C, and (c) hydrolyzing the cellulose. Moreover there is disclosed glucose manufactured according to the method and ethanol manufactured from the glucose. Advantages include that the cellulose is hydrolyzed faster and to a greater extent after the treatment. The yield is increased.
    • 公开了一种水解纤维素的方法,其包括以下顺序步骤:(a)用水溶液混合粘度低于900ml / g的纤维素以获得液体,其中在所述液体中包含纤维素的颗粒的直径最大为200nm ,其中所述水溶液的温度低于35℃,并且其中所述水溶液的pH高于12,(b)使所述液体经历以下步骤中的至少一个:(i)降低所述液体的pH, 至少1个pH单位,和(ii)将温度升高至少20℃,和(c)水解纤维素。 此外,公开了根据该方法制备的葡萄糖和由葡萄糖制造的乙醇。 优点包括纤维素在处理之后更快地水解并且更大程度地水解。 产量增加。
    • 4. 发明申请
    • METHOD AND DEVICE FOR THE CONTINUOUS COOKING OF PULP
    • 用于连续烹饪纸浆的方法和装置
    • WO2007064293A1
    • 2007-06-07
    • PCT/SE2006/050507
    • 2006-11-24
    • KVAERNER PULPING ABSNEKKENES, VidarLINDSTRÖM, Mikael
    • SNEKKENES, VidarLINDSTRÖM, Mikael
    • D21C3/24D21C3/22D21C7/00
    • D21C7/12D21C3/22D21C3/24
    • The invention concerns an arrangement and a method for the continuous cooking of chemical cellulose pulp in a continuous digester system (100). The continuous digester system (100) comprises an inlet (102) for the feed of a chips suspension and an outlet (103) for the output of a cooked suspension of pulp. The suspension of chips is fed in to the inlet through a line (105) at the beginning of the cook, where the chips suspension has a volume of starting cooking fluid that establishes a fluid/wood ratio that is greater than 3.5. The invention is characterised in that a final cooking fluid is present during the cook for the major part of the cook and is withdrawn through a withdrawal strainer (106) only during the final 15 minutes of the cook. The final cooking fluid ensures a fluid/wood ratio that is greater than 3.5 in association with the withdrawal. The withdrawn final cooking fluid during the final 15 minutes of the cook consists of spent black liquor, which maintains a residual alkali level that lies under 15 g/l.
    • 本发明涉及在连续蒸煮器系统(100)中连续烹饪化学纤维素纸浆的装置和方法。 连续蒸煮器系统(100)包括用于进料碎屑悬浮液的入口(102)和用于输出熟化的纸浆悬浮液的出口(103)。 在烹饪开始时,芯片的悬浮液通过管线(105)进入入口,其中碎屑悬浮液具有确定大于3.5的流体/木材比率的起始烹调液体积。 本发明的特征在于,在厨师烹饪期间存在烹饪最后的烹饪液体,并且仅在烹饪的最后15分钟内通过抽吸过滤器(106)抽出。 最终的烹饪液体确保与抽出相关联的大于3.5的流体/木材比例。 在烹饪最后15分钟内抽出的最终烹饪液体由用过的黑液组成,残留的碱水平保持在15g / l以下。
    • 8. 发明申请
    • PROCESS AND ARRANGEMENT FOR REPLACING INTRA-FIBER LIQUID IN FIBERS WITH A REPLACEMENT LIQUID
    • 在具有替换液体的纤维中更换纤维内液体的工艺和布置
    • WO2004025019A1
    • 2004-03-25
    • PCT/SE2003/001443
    • 2003-09-16
    • STFI, SKOGSINDUSTRINS TEKNISKA FORSKNINGSINSTITUT ABSAMUELSSON, ÅsaSJÖGREN, BirgerVOMHOFF, HannesSJÖSTRÖM, LarsLUCISANO, MarcoLINDSTRÖM, MikaelIVERSEN, Tommy
    • SAMUELSSON, ÅsaSJÖGREN, BirgerVOMHOFF, HannesSJÖSTRÖM, LarsLUCISANO, MarcoLINDSTRÖM, MikaelIVERSEN, Tommy
    • D21C9/02
    • D21C9/10D21C9/007D21C9/06
    • The present invention relates to a process for replacing intra-fiber liquid in fibers by a replacement liquid, comprising the following steps; compressing the fiber cake to such a degree that a substantial quantity of the intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake, forcibly supplying the replacement liquid to the fiber cake during the compression and thus replacing the intra-fiber liquid from the space between the fibers and letting the fibers expand while supplying additional replacement liquid which is thus further absorbed by the expanding fibers. It also relates to an arrangement for replacing intra-fiber liquid in fibers with a replacement liquid comprising a device (1, 4, 5) for compressing the fiber cake in such a degree that a substantial quantity of intra-fiber liquid is expressed to the space between the fibers and partially out of the fiber cake , a first device (6, 8, 9) for forcibly supplying the replacement liquid to the fibers during the compression and a second device (7) for supplying additional replacement liquid immediately after the device for compression arranged in an expansion area where the fibers are allowed to expand after the compression while absorbing replacement liquid. The object of the present invention is to get rid of or significantly reduce the content of contaminating material in not only the areas between the fibers in a fiber cake but also in the fiber wall pores and the lumen and replace this liquid by a replacement liquid.
    • 本发明涉及用替换液替代纤维中的纤维内液体的方法,包括以下步骤: 将纤维饼压缩到大量的纤维内液体被表达到纤维之间的空间并且部分地被排出纤维饼的程度,在压缩过程中强制地将更换的液体供给纤维饼, 来自纤维之间的空间的纤维内液体,并使纤维膨胀,同时提供另外的替代液体,由此进一步被膨胀纤维吸收。 还涉及一种用于用包含用于压缩纤维饼的装置(1,4,5)的置换液体来替换纤维中的纤维内液体的布置,使得将大量的纤维内液体表达到 在纤维之间的空间和部分地在纤维饼之间的第一装置(6,8,9),用于在压缩期间强制地将替换液体供应到纤维;以及第二装置(7),用于在装置之后立即提供附加的更换液体 用于压缩布置在膨胀区域中,其中纤维在压缩之后允许膨胀而吸收替换液体。 本发明的目的在于消除或显着降低污染物质的含量,不仅在纤维饼中的纤维之间,而且在纤维壁孔和内腔中的区域中,还可以通过置换液来代替该液体。
    • 9. 发明申请
    • COMPACT PROCESS FOR PRODUCING PREHYDROLYZED PULP
    • 用于生产预溶胶浆的紧凑方法
    • WO2012158075A1
    • 2012-11-22
    • PCT/SE2011/050610
    • 2011-05-13
    • METSO PAPER SWEDEN ABTROLIN, DanielANTONSSON, StefanSAETHERÅSEN, JonasLINDSTRÖM, Mikael
    • TROLIN, DanielANTONSSON, StefanSAETHERÅSEN, JonasLINDSTRÖM, Mikael
    • D21C1/02D21C1/04D21C1/06D21C3/02D21C3/26
    • D21C1/02D21C1/04D21C1/06D21C3/02D21C3/26
    • The invention is related to an improved compact process for producing dissolving pulp in a prehydrolysis kraft cooking process. In order to avoid pitch problems with blocked withdrawal screens and to obtain a distinct ending of the prehydrolysis stage, as well as a thorough alkaline impregnation ahead of the kraft cook stage, alkali is charged to the mixture of prehydrolyzed material to such an extent that the residual alkali concentration after neutralization of the acidic hydrolysate is above 20 g/l EA as NaOH and the temperature of the resulting alkaline treatment liquor for the prehydrolyzed material is lowered by at least 10% in comparison to the temperature in the prehydrolysis stage. The alkali charge will avoid redeposition of hemicelluloses dissolved in the prehydrolyse stage and will abruptly swing the wood material mixture to alkaline conditions favourable for a alkali impregnation stage at reduced temperature ahead of the final kraft cooking stage, which impregnation stage will extract the major part of the hemicelluloses content of the cellulose material.
    • 本发明涉及在预水解硫酸盐蒸煮工艺中生产溶解纸浆的改进的紧密方法。 为了避免堵塞抽出筛选的沥青问题,并获得预水解阶段的明显结束,以及在硫酸盐蒸煮阶段之前的彻底的碱浸渍,将碱加入到预水解材料的混合物中,使得 酸性水解产物中和后的残留碱浓度为NaOH高于20g / l EA,预水解物质的碱处理液的温度与预水解阶段的温度相比降低至少10%。 碱充电将避免溶解在预水解阶段的半纤维素的再沉积,并且将在最终的硫酸盐蒸煮阶段之前将木质材料混合物突然摇摆到有利于降低温度的碱浸渍阶段的碱性条件下,该浸渍阶段将提取主要部分 纤维素材料的半纤维素含量。