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    Method for producing a sintered porous body
    1.
    发明授权
    Method for producing a sintered porous body 有权
    烧结多孔体的制​​造方法

    公开(公告)号：US06365092B1

    公开(公告)日：2002-04-02

    申请号：US09338060

    申请日：1999-06-23

    申请人： Stefan Backa ,  Rebei Bel Fdhila ,  Markku Rissanen

    发明人： Stefan Backa ,  Rebei Bel Fdhila ,  Markku Rissanen

    IPC分类号： B28B152

    CPC分类号： B01J37/0018 ,  B01D53/885 ,  B01J35/06 ,  C04B30/02 ,  C04B40/006 ,  C04B2111/0081 ,  C04B14/38 ,  C04B24/24 ,  C04B40/0071 ,  C04B40/0268 ,  C04B41/502

    摘要： A shaped sintered fibrous porous body exhibits a structure with a three-dimensional corrugated or undulating shape and porosity. The structure includes inorganic fibers joined as a sintered structure and is produced in one embodiment by: dispersing and suspending a fiber mixture including inorganic fibers and organic binder, such as cellulose fibers, or other organic compounds, in a liquid to form a fibrous slurry; forming a body including the fiber mixture by depositing the slurry on a shaped screen to thereby shape the fibrous body to a three-dimensional configuration simultaneously with the formation of the body; removing at least a part of the liquid from the fibrous body through the screen by a vacuum; drying the fibrous body in the ambient atmosphere or in a furnace; heating the dried fibrous body to a first elevated temperature where the organic binder is removed from the body; subsequently heating the dried body to a second elevated temperature where the inorganic fibers are partly fused to form a sintered porous fibrous body with a three-dimensional corrugated or undulating configuration. The body is suitable for use as or included in reactor elements to provide gas/condensed phase mass transfer areas in a system involving processing or teatment of gases and/or vapors through distillation, absorption and/or catalytic reactions or the like requiring gas/condensed phase mass transfer, The body is also for enhancing fluid-catalyst mass transfer at low pressure drop and contacting between fluids or combinations thereof in single phase catalytic reactors.

    摘要翻译： 成形烧结纤维状多孔体呈现三维波状或起伏形状和孔隙率的结构。 该结构包括作为烧结结构接合的无机纤维，并且在一个实施方案中通过以下方式制备：将包含无机纤维和有机粘合剂如纤维素纤维或其它有机化合物的纤维混合物分散和悬浮在液体中以形成纤维浆料; 通过将浆料沉积在成形的筛网上形成包括纤维混合物的主体，从而在形成身体的同时将纤维体形成三维构型; 通过真空通过筛网从纤维体中去除至少一部分液体; 在环境气氛或炉子中干燥纤维体; 将干燥的纤维体加热到第一高温，其中有机粘合剂从身体去除; 随后将干燥的物体加热至无机纤维部分熔融的第二高温，形成具有三维波纹或起伏构型的烧结多孔纤维体。 本体适合用作或包含在反应器元件中，以在涉及通过蒸馏，吸收和/或催化反应等进行气相和/或蒸汽处理或喷雾的系统中提供气体/冷凝相质量传递区域，其需要气体/冷凝 本体还用于在低压降下增强流体 - 催化剂传质，并在单相催化反应器中使流体或其组合之间接触。

    Refiner control
    2.
    发明授权
    Refiner control 失效
    精炼机控制

    公开(公告)号：US06935164B2

    公开(公告)日：2005-08-30

    申请号：US10332954

    申请日：2001-06-27

    申请人： Thomas Liljenberg ,  Stefan Backa ,  Lennart Thegel

    发明人： Thomas Liljenberg ,  Stefan Backa ,  Lennart Thegel

    IPC分类号： G01N29/02 ,  D21B1/14 ,  D21D1/00 ,  D21D1/20 ,  D21D1/30 ,  G01N29/032 ,  G01N29/34 ,  G01N33/34 ,  G01N29/00 ,  G01N33/46 ,  G01S15/00

    CPC分类号： G01N29/348 ,  D21D1/002 ,  D21D1/30 ,  G01N29/032 ,  G01N2291/014 ,  G01N2291/02416 ,  G01N2291/02836 ,  G01N2291/02872

    摘要： In the present invention a refiner (108) of a mechanical pulping line is supplied with a controllable acoustic source (14), arranged for emitting acoustic signals into the pulp fluid. The controllable acoustic signal is allowed to interact with the fibres in the pulp, and the acoustic (pressure) signals resulting from such an interaction is measured. At least one spectral component is measured. The measured spectral component is used to predict properties, content and/or size of the fibres. These properties may then be used to control the refiner (108) process. The used acoustic signal has preferably a wavelength that is large compared with a typical site of the particles.

    摘要翻译： 在本发明中，机械制浆生产线的精磨机（108）被提供有可控声源（14），其被设置用于将声信号发射到纸浆流体中。 允许可控声信号与纸浆中的纤维相互作用，并且测量由这种相互作用产生的声学（压力）信号。 测量至少一个光谱分量。 测量的光谱分量用于预测纤维的性质，含量和/或尺寸。 然后可以使用这些属性来控制精磨机（108）过程。 所使用的声信号优选具有与颗粒的典型位置相比较大的波长。

    Method in drying of paper
    3.
    发明授权
    Method in drying of paper 失效
    纸干燥方法

    公开(公告)号：US06742280B1

    公开(公告)日：2004-06-01

    申请号：US10129842

    申请日：2002-09-13

    申请人： Anders Andrén ,  Stefan Backa ,  Johan Ekh ,  Xiaolong Feng ,  Thomas Liljenberg ,  Ulf Persson ,  Xiaojing Zhang

    发明人： Anders Andrén ,  Stefan Backa ,  Johan Ekh ,  Xiaolong Feng ,  Thomas Liljenberg ,  Ulf Persson ,  Xiaojing Zhang

    IPC分类号： F26B300

    CPC分类号： D21F5/18 ,  D21F5/00 ,  D21F5/185

    摘要： A method in consolidation and drying of paper. A wet web is contacted with superheated steam, whose temperature is 200-600° C. for the purpose of reducing, by heat transfer from the superheated stream, the water content of the web by evaporation of a substantial part of the water in the same. The wet web is supported and transported by means of a heat-conductive, gas-impermeable belt whose width is equal to or exceeds the width of the web, and jets of the superheated steam are directed towards the side of the web facing away from the belt.

    摘要翻译： 一种纸张整理和干燥的方法。 将湿纸幅与温度为200-600℃的过热蒸汽接触，以通过从过热流的热传递来减少幅材的水分含量，其中相当大部分水蒸发 。 湿纸幅通过宽度等于或超过纸幅宽度的导热不透气带来支撑和传送，而过热蒸汽的射流被引向纸幅背面远离 带。

    Method and system for controlling the addition of oxygen gas and alkali during oxygen gas delignification
    4.
    发明申请
    Method and system for controlling the addition of oxygen gas and alkali during oxygen gas delignification 审中-公开
    在氧气脱木质过程中控制氧气和碱的添加的方法和系统

    公开(公告)号：US20060207733A1

    公开(公告)日：2006-09-21

    申请号：US10567322

    申请日：2004-11-23

    申请人： Stefan Backa ,  Carin Rudfeldt

    发明人： Stefan Backa ,  Carin Rudfeldt

    IPC分类号： D21C9/147 ,  D21C7/00 ,  D21C9/10

    CPC分类号： D21C9/147

    摘要： The method and system is for the acid gas delignification of cellulose pulp in a gas/fluid suspension. The oxygen gas delignification takes place in a reactor system with one or several oxygen gas reactors. Delignification chemicals are added at least before the first oxygen gas reactor such that oxygen gas remains present during the complete reaction process in the reactors. Alkali in an amount that ensures that the pH lies above 9 is also added. The temperature of the cellulose pulp is measured at two different positions (T1, T2, . . . , Tn) viewed in the direction of flow of the pulp though the system. The measurements are used to control the charged amount of the delignification chemicals to the oxygen gas delignification. The first temperature measurement (T1) is carried out at a position in association with the first addition of oxygen gas.

    摘要翻译： 该方法和系统用于在气体/流体悬浮液中的纤维素纸浆的酸性气体脱木质素。 氧气脱木质素在具有一个或多个氧气反应器的反应器系统中进行。 至少在第一氧气反应器之前加入脱木质素，使得在反应器中的完全反应过程期间氧气保持存在。 碱的含量也可以确保pH在9以上。 在通过系统的纸浆流动方向观察的两个不同位置（T 1，T 2，...，Tn）处测量纤维素纸浆的温度。 测量用于控制脱木素化学品对氧气脱木质素的带电量。 第一温度测量（T 1）在与第一次加入氧气相关联的位置处进行。

    Method and device for controlling an essentially continuous process
    5.
    发明授权
    Method and device for controlling an essentially continuous process 有权
    用于控制基本上连续过程的方法和装置

    公开(公告)号：US06597959B1

    公开(公告)日：2003-07-22

    申请号：US09529388

    申请日：2000-04-25

    申请人： Stefan Backa ,  Erik Dahlquist ,  Thomas Liljenberg

    发明人： Stefan Backa ,  Erik Dahlquist ,  Thomas Liljenberg

    IPC分类号： G05B1304

    CPC分类号： G05B13/048

    摘要： A method and a device for controlling a process (10), having at least two sub-processes (20, 30), by tracking, processing and correcting variables for the product, the production means and/or any process media throughout the process line. The process flow for the first sub-process (20) is divided into slices, each slice representing a specific volume of process flow. At least some of the measured and sampled variable values are related to its specific slice volume. Any variable value obtained is processed using a control and processing, unit (60) with means for receiving, information on variable values on-line, means for presenting (70) the process flow through the production units, means for dividing the process flow into slices, means for processing a variable value obtained, including means for relating, the variable value to is specific slice volume, means to develop one or more multivariate models based on variable values for a multiple of slice volumes and means to combine the multivariate model with a processed variable value for a specific slice volume to predict a variable value and/or a quality variable for subsequent second sub-process (30). Corrective actions are executed in the subsequent second sub-process (30) based on a processed variable value from the first sub-process (20) using, actuating, means (80) for execution of corrective action.

    摘要翻译： 一种用于控制具有至少两个子过程（20,30）的过程（10）的方法和装置，通过跟踪，处理和校正产品，生产装置和/或整个生产线中的任何处理介质的变量 。 第一子过程（20）的处理流程被划分成片，每个片表示特定的处​​理流量。 至少一些测量和采样的变量值与其特定切片体积有关。 获得的任何变量值使用控制和处理来处理，单元（60）具有用于在线接收关于变量值的信息的装置，用于呈现（70）通过生产单元的处理流程的装置，用于将处理流分成 切片，用于处理所获得的变量值的装置，包括将变量值与特定切片体积相关联的装置，用于基于多个切片体积的变量值开发一个或多个多变量模型，以及将多变量模型与 用于特定切片体积的预测变量值的处理变量值和/或随后的第二子过程（30）的质量变量。 基于来自第一子过程（20）的处理的变量值，使用，执行用于执行校正动作的装置（80），在随后的第二子处理（30）中执行纠正动作。

    Wood drying plant and a method of purifying a drying gas from a wood drying device
    6.
    发明授权
    Wood drying plant and a method of purifying a drying gas from a wood drying device 失效
    木材干燥设备和从木材干燥装置中净化干燥气体的方法

    公开(公告)号：US5966837A

    公开(公告)日：1999-10-19

    申请号：US851627

    申请日：1997-05-06

    申请人： Stefan Backa ,  Ulf Persson

    发明人： Stefan Backa ,  Ulf Persson

    IPC分类号： B01D5/00 ,  B01D53/00 ,  F26B25/00 ,  F26B3/00

    CPC分类号： B01D5/0054 ,  B01D53/002 ,  F26B25/006 ,  B01D2257/708 ,  B01D2257/80 ,  F26B2210/16

    摘要： The device relates to a wood drying plant comprising a wood drying device and a purifying device which is arranged to receive a drying gas from the wood drying device, the drying gas comprising water steam and volatilized organic components such as terpenes, and to purify the drying gas from organic components and to recover the latter. The purifying device comprises at least one condenser which is arranged to separate relatively difficultly volatilized components containing organic components and relatively easily volatilized components. The purifying device also comprises a separating device which is arranged to separate said organic components and a rest material from the relatively difficultly volatilized components. The purifying device also comprises a transferring device which is arranged to transfer organic components present in the rest material to the drying gas introduced in the purifying device.

    摘要翻译： 该装置涉及一种木材干燥设备，其包括木材干燥装置和净化装置，其被设置成从木材干燥装置接收干燥气体，所述干燥气体包括水蒸汽和挥发的有机组分如萜烯，并且净化干燥 从有机成分中吸收气体并回收。 净化装置包括至少一个冷凝器，其布置成分离含有有机组分的相对难挥发的组分和相对容易挥发的组分。 净化装置还包括分离装置，其被布置成将所述有机组分和剩余材料与相对难挥发的组分分离。 净化装置还包括转移装置，其被设置成将存在于其余材料中的有机成分转移到引入净化装置的干燥气体。

    Computer based method and system for controlling an industrial process
    7.
    发明授权
    Computer based method and system for controlling an industrial process 失效
    用于控制工业过程的基于计算机的方法和系统

    公开(公告)号：US07082348B1

    公开(公告)日：2006-07-25

    申请号：US10089068

    申请日：2000-10-04

    申请人： Erik Dahlquist ,  Thomas Liljenberg ,  Stefan Backa

    发明人： Erik Dahlquist ,  Thomas Liljenberg ,  Stefan Backa

    IPC分类号： G06F7/66

    CPC分类号： G05B13/048

    摘要： A computer based method for controlling an industrial process that includes at least two unit processes, including the steps of directly controlling the process by a control model including one or more algorithms, and automatic diagnosis of the validity of the process data retrieved from the process for the purpose of preventing irrelevant process data from being used as an input in the control model.

    摘要翻译： 一种用于控制工业过程的基于计算机的方法，其包括至少两个单元处理，包括以下步骤：通过包括一个或多个算法的控制模型直接控制过程，以及自动诊断从该过程检索的过程数据的有效性 防止不相关过程数据被用作控制模型中的输入的目的。

    Two stage process for drying of raw wood material
    10.
    发明授权
    Two stage process for drying of raw wood material 失效
    用于干燥原木材料的两阶段工艺

    公开(公告)号：US06357144B1

    公开(公告)日：2002-03-19

    申请号：US09485344

    申请日：2000-02-08

    申请人： Lars Nilsson ,  Stefan Backa ,  Ulf Persson

    发明人： Lars Nilsson ,  Stefan Backa ,  Ulf Persson

    IPC分类号： F26B300

    CPC分类号： B01D53/72 ,  F26B21/10 ,  F26B23/024 ,  F26B2210/16

    摘要： Method for drying wood raw material (10) by means of hot gases (20) supplied to the drying process, in which VOC, apart from water, evaporate from the wood raw material into the gases. The drying process is divided and carried out in at least two sub-steps (I, II), from which process gas (22, 33) is removed separately, and the drying process is thus controlled that VOC evaporate during one of the sub-steps, and the VOC are concentrated to this sub-step. The temperature of the gas containing VOC is increased to a temperature exceeding 180° C. before VOC are oxidized catalytically at said elevated temperature, in order to reduce the discharge of VOC from the drying process.

    摘要翻译： 用于通过供应到干燥过程的热气体（20）干燥木材原料（10）的方法，其中VOC除了水从木材原料蒸发成气体。 干燥过程在至少两个子步骤（I，II）中分离并进行，分离除去工艺气体（22,33），并且因此控制干燥过程，使得VOC在一个子步骤 步骤，VOC集中在这个子步骤。 在VOC在所述升高的温度下催化氧化之前，含有VOC的气体的温度升高到超过180℃的温度，以便减少VOC从干燥过程中的排放。