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1. 发明授权

US5567279A Variable stage pressure diffuser 失效
标题翻译：可变级压力扩散器
公开(公告)号：US5567279A
公开(公告)日：1996-10-22
申请号：US801651
申请日：1991-12-02
申请人： Joseph R. Phillips , John D. Weston , Victor L. Bilodeau , Ronald G. Bain , Mark D. Barrett , Brian F. Greenwood , John Pietrangelo
发明人： Joseph R. Phillips , John D. Weston , Victor L. Bilodeau , Ronald G. Bain , Mark D. Barrett , Brian F. Greenwood , John Pietrangelo
IPC分类号： D21C9/02 , D21C7/00 , D21C9/04 , D21D1/40
CPC分类号： D21C7/00 , D21C9/04 , D21D1/40
摘要： Located within the annular screen of the pressure diffuser is a tubular baffle hung from adjacent the top of the vessel. The baffle has two headers disposed on its inner surface, with openings in the tube providing communication between the exterior of the tube and the headers. A conduit extends from each header to an arm at the top of the vessel, to allow extracted liquid to be discharged. Another extraction conduit is provided at the bottom of the vessel, in communication with the screen interior and the tubular baffle interior. Treatment liquid, such as wash liquid, may be introduced at two, three, or more positions along the vessel with the liquid extracted from the first and second headers being introduceable at different positions along the vessel. A flexible, elastomeric material, sealing element with integral annular skirt may extend from the bottom end of the tubular baffle and engage the screen to provide a seal minimizing mixing between stages.
摘要翻译：位于压力扩散器的环形屏幕内的是与容器顶部相邻的管状挡板。挡板具有设置在其内表面上的两个集管，管中的开口提供管的外部和集管之间的连通。导管从容器的顶部从每个头部延伸到臂，以允许抽出的液体排出。在容器的底部提供另一个提取管道，与屏幕内部和管状挡板内部连通。诸如洗涤液体的处理液体可以沿着容器引入两个，三个或更多个位置，从第一和第二集管提取的液体可以沿着容器在不同位置被引入。具有整体环形裙部的柔性弹性体材料密封元件可以从管状挡板的底端延伸并接合屏幕以提供最小化阶段之间的混合的密封。

2. 发明授权

US5338366A Acid pre-hydrolysis reactor system 失效
标题翻译：酸预水解反应器系统
公开(公告)号：US5338366A
公开(公告)日：1994-08-16
申请号：US997711
申请日：1993-01-04
申请人： Todd S. Grace , Mark D. Barrett , Vic L. Bilodeau , Gary L. McCarty , Brian F. Greenwood , J. Robert Prough , Louis O. Torregrossa
发明人： Todd S. Grace , Mark D. Barrett , Vic L. Bilodeau , Gary L. McCarty , Brian F. Greenwood , J. Robert Prough , Louis O. Torregrossa
IPC分类号： C12P7/10 , C13B10/14 , C13K13/00 , D21C1/04 , C13D1/14 , D21B1/12
CPC分类号： C13B10/14 , C12P7/10 , C13K13/00 , D21C1/04 , Y02E50/16
摘要： Biomass, such as bagasse, is pre-hydrolyzed, to ultimately effect hydrolysis of hemicellulose to sugars. Biomass is mixed with a mineral acid solution to form a slurry having a consistency of about 8 to 12% so that the acid solution properly wets the biomass. Then the slurry is dewatered to about 35 to 50% consistency, and is heated to reaction temperature (e. g. about 320.degree. F.) by direct contact with steam in the vapor phase of a vertical pressurized reactor, having a pressure of about 40 psig. A fluffer is preferably provided in the top of the reaction vessel. After a reaction time of about 30 minutes, the biomass is diluted and cold blown out of the bottom of the reactor. Pressate from the dewatering has acid added to it and is heated by indirect heat exchange with a sugar solution obtained by washing of the biomass discharged from the reactor, and is then mixed with the biomass as the acid solution.
摘要翻译：生物质如甘蔗渣被预水解，以最终将半纤维素水解成糖。将生物质与无机酸溶液混合以形成具有约8至12％浓度的浆料，使得酸溶液适当地润湿生物质。然后将浆料脱水至约35％至50％的稠度，并通过与垂直加压反应器的气相中的蒸汽直接接触将其加热至反应温度（例如约320°F），压力为约40psig。优选在反应容器的顶部设置起绒毛。在约30分钟的反应时间后，将生物质稀释并冷却从反应器的底部吹出。从脱水中加入酸加入，并通过与通过洗涤从反应器排出的生物质洗涤得到的糖溶液进行间接热交换加热，然后与作为酸溶液的生物质混合。

3. 发明授权

US5328564A Modified digestion of paper pulp followed by ozone bleaching 失效
标题翻译：改性消化纸浆，然后臭氧漂白
公开(公告)号：US5328564A
公开(公告)日：1994-07-12
申请号：US836585
申请日：1992-02-18
申请人： Jian E. Jiang , Brian F. Greenwood , Joseph R. Phillips
发明人： Jian E. Jiang , Brian F. Greenwood , Joseph R. Phillips
IPC分类号： D21C3/02 , D21C3/24 , D21C7/00 , D21C7/14 , D21C9/147 , D21C9/153 , D21C9/16 , D21C11/00
CPC分类号： D21C3/24 , D21C3/02 , D21C7/00 , D21C9/147 , D21C9/153 , D21C9/163
摘要： Kraft pulp is bleached to a brightness of about 90 CPPA or greater, without the use of chlorinated organic compounds that has commercially acceptable strength properties. During production of the kraft pulp it is subjected to extended delignification, by adding kraft white liquor to a first recirculation loop in the digester, and/or a second, wash, recirculation loop in the digester; or by conventional pulping followed by two oxygen stages, with washing between the stages. The extended delignification pulp is then subjected to ozone bleaching, with an ozone dosage of less than 1.0% (preferably less than about 0.5%). The ozone bleaching sequence may be a (ZE)P(ZE)P sequence.
摘要翻译：牛皮纸浆漂白至约90CPPA或更高的亮度，而不使用具有商业上可接受的强度性能的氯化有机化合物。在牛皮纸浆的生产过程中，通过在蒸煮器中的第一再循环回路中加入牛皮纸白液，和/或在蒸煮器中的第二个洗涤循环回路，对其进行扩展的脱木质素; 或通过常规制浆，然后是两个氧气阶段，并在阶段之间进行洗涤。然后对延长的脱木素纸浆进行臭氧漂白，臭氧剂量小于1.0％（优选小于约0.5％）。臭氧漂白序列可以是（ZE）P（ZE）P序列。

4. 发明授权

US5518583A Zero discharge mill distillation, salt recovery, and water management 失效
标题翻译：零排料机蒸馏，盐回收和水管理
公开(公告)号：US5518583A
公开(公告)日：1996-05-21
申请号：US138968
申请日：1993-10-21
申请人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan T. Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
发明人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan T. Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
IPC分类号： C01B7/01 , C01D1/04 , C01D3/04 , C01D5/00 , C01D7/00 , D21C11/00 , D21C11/06 , D21C11/10 , D21C11/12
CPC分类号： D21C11/0021 , C01B7/01 , C01D1/04 , C01D3/04 , C01D5/00 , C01D7/00 , D21C11/00 , D21C11/0007 , D21C11/0028 , D21C11/066 , D21C11/10 , D21C11/12 , Y10S162/08
摘要： In minimizing effluents from a cellulose pulp mill, liquid effluents from a bleach plant are concentrated, and then incinerated to produce a residue including sodium, sulfate, and sodium chloride. This residue is distilled with sulfuric acid to produce gaseous hydrogen chloride and remaining residue, the HCl being used in chloride dioxide production for the bleach plant, while the remaining residue is passed to the recovery loop (e.g. recovery boiler). Sulfur containing gases from the non-condensible gas system may be combusted to produce gaseous sulfur dioxide, which is then converted to sulfuric acid, to distill the residue. Where a non-chlorine bleach plant is provided, the liquid effluents may be concentrated in evaporators and then passed directly to the recovery boiler. The liquid streams in the mill are managed by a cascade principle to reserve the cleanest water for only those processes where it is needed while minimizing its use where it is not necessary.
摘要翻译：在使来自纤维素纸浆厂的流出物最小化的同时，将来自漂白设备的液体流出物浓缩，然后焚化以产生包括钠，硫酸盐和氯化钠的残余物。该残余物用硫酸蒸馏以产生气态氯化氢和剩余残余物，HCl用于漂白设备的二氧化氯生产中，而剩余的残余物通过回收回路（例如回收锅炉）。来自不可冷凝气体系统的含硫气体可以燃烧以产生气态二氧化硫，然后将其转化为硫酸以蒸馏残余物。当提供非氯漂白设备时，液体流出物可以浓缩在蒸发器中，然后直接通入回收锅炉。磨机中的液体流是通过级联原理进行管理的，以便在需要的地方只为那些需要处理的过程保留最干净的水，同时尽可能减少不必要的使用。

5. 发明授权

US5549788A Minimal effluents discharge pulp mill with chemical recovery 失效
标题翻译：排放最小的废纸浆厂具有化学回收率
公开(公告)号：US5549788A
公开(公告)日：1996-08-27
申请号：US113642
申请日：1993-08-31
申请人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan T. Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
发明人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan T. Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
IPC分类号： C01B7/01 , C01D1/04 , C01D3/04 , C01D5/00 , C01D7/00 , D21C11/00 , D21C11/06 , D21C11/10 , D21C11/12
CPC分类号： C01B7/01 , C01D1/04 , C01D3/04 , C01D5/00 , C01D7/00 , D21C11/0007 , D21C11/0021 , D21C11/0028 , D21C11/066 , D21C11/10 , D21C11/12 , Y10S162/08
摘要： Effluents are minimized from a cellulose pulp mill having a recovery boiler by concentrating liquid effluents from the bleach plant and/or liquid spills from process streams, incinerating the concentrated effluents in the recovery boiler, removing particles present in the flue gases from the recovery boiler to produce an ash including salts containing potassium and chloride, and sulfur compounds, and removing the potassium and chloride from the ash while returning the sulfur containing compounds to the recovery loop, so as to balance the sulfur, chloride and potassium levels in the mill. The sulfur is typically returned directly to a stream of black liquor just before entry into the recovery boiler. Green liquor is produced from the melt, which preferably is treated to remove metals from it prior to caustization (e.g. by sedimentation and/or filtration), and prior to green liquor crystallization to produce sodium hydroxide.
摘要翻译：通过从漂白设备中浓缩液体流出物和/或来自工艺物流的液体溢出，焚化回收锅炉中的浓缩废水，将来自回收锅炉的烟道气中存在的颗粒除去，从具有回收锅炉的纤维素纸浆厂中将废水最小化产生包含含有氯化钾和氯化物的盐的灰分和硫化合物，并将灰分中的钾和氯从灰分中除去，同时将含硫化合物返回到回收回路中，以平衡磨机中的硫，氯和钾的含量。在进入回收锅炉之前，硫通常直接返回到黑液流中。从熔体中生产绿液，其优选在去除（例如通过沉淀和/或过滤）之前以及在绿液结晶以产生氢氧化钠之前经处理以从其中除去金属。

6. 发明授权

US5374333A Method for minimizing pulp mill effluents 失效
标题翻译：减少纸浆厂废水的方法
公开(公告)号：US5374333A
公开(公告)日：1994-12-20
申请号：US922334
申请日：1992-07-30
申请人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
发明人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan Richardsen , Rolf Ryham , Jarmo Soderman , Karl G. Wiklund
IPC分类号： D21C9/10 , D21C11/00 , D21C11/12
CPC分类号： D21C11/0021 , Y10S162/08
摘要： Apparatus for a pulp and paper mill, and methods of acting on liquid effluents produced in the mill, which minimizes the discharge of polluting gaseous and liquid effluents to the environment. Liquid effluents from the bleach plant are concentrated (e.g. evaporated), incinerated (e.g. gasified), leached, crystallized (e.g. freeze crystallized) then washed, and then fed to the plant chemical recovery loop. White liquor produced from the recovery boiler melt is fully oxidized and used in place of caustic in the bleach plant. Essentially all sulfuric acid, sulfur dioxide, caustic, and chlorine dioxide necessary for the pulp mill is produced from mill liquid effluents and gas waste streams, on site at the pulp mill. Typical bleaching sequences that can be used are DE.sub.op D.sub.n D, or AZE.sub.o PZP.
摘要翻译：用于纸浆和造纸厂的设备，以及作用于在磨机中产生的液体流出物上的方法，其最大限度地减少污染的气态和液体流出物排放到环境中。来自漂白设备的液体流出物被浓缩（例如蒸发），焚化（例如气化），沥滤，结晶（例如冷冻结晶），然后洗涤，然后进料至植物化学回收循环。从回收锅炉熔体产生的白液被完全氧化并用于漂白设备中的苛性碱。纸浆厂所必需的硫酸，二氧化硫，苛性碱和二氧化氯基本上都是从磨浆液流出物和废气流中产生的。可以使用的典型漂白序列是DEopDnD或AZEoPZP。

7. 发明授权

US5865948A Method for steaming comminuted cellulosic fibrous material during continuous solvent pulping 失效
标题翻译：在连续溶剂制浆期间蒸粉碎的纤维素纤维材料的方法
公开(公告)号：US5865948A
公开(公告)日：1999-02-02
申请号：US473194
申请日：1995-06-07
申请人： Jairo H. Lora , John Patrick Maley , Brian F. Greenwood , Joseph R. Phillips , David J. Lebel
发明人： Jairo H. Lora , John Patrick Maley , Brian F. Greenwood , Joseph R. Phillips , David J. Lebel
IPC分类号： D21C3/18 , D21C1/02 , D21C3/20 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/14 , D21C9/02 , D21C9/04 , D21C11/00
CPC分类号： D21C1/02 , D21C11/00 , D21C3/20 , D21C3/24 , D21C7/00 , D21C9/02 , D21C9/04
摘要： A continuous solvent pulping process is practiced with oxygen free gas (e.g. nitrogen) purges of all major treatment vessels during the time when the process is arrested or terminated. The wood chips or other cellulosic fibrous material to be pulped is steamed in a first horizontal steaming zone at pressure of about 10-20 psi, and then in a second horizontal steaming zone at a pressure of about 20-75 psi. The first and second zones are isolated by a low pressure feeder. Steam is introduced into the material in the second steaming zone to flow cocurrently with it. Gases, including vaporized solvent (e.g. ethanol or other alcohol) are vented from the steaming zones, and solvent is added to the steamed material prior to feeding to a high pressure feeder. The high pressure feeder introduces the material into the top of a single digesting vessel, liquid and chips being separated at the top of the digester vessel without mechanical means that could cause a spark. Lignin containing liquid is withdrawn from a central portion of the digester and passed through flash tanks and ultimately for lignin and alcohol recovery. A recirculating screen and system is disposed between the central extraction portion and the top of the digester vessel. A portion of the liquid removed for recirculation is instead passed to lignin recovery, while fresh solvent containing liquid is added to the rest of the recirculated liquid.
摘要翻译：连续溶剂制浆过程在所有主要处理容器的无氧气体（如氮气）清洗过程被捕获或终止的时间内进行。要制浆的木屑或其他纤维素纤维材料在约10-20psi压力的第一卧式蒸汽区中蒸汽，然后在约20-75psi压力的第二卧式蒸汽区中蒸汽。第一和第二区域由低压进料器隔离。蒸汽被引入第二蒸汽区中的材料以与其并流流动。气体，包括蒸发的溶剂（例如乙醇或其他醇）从蒸汽区域排出，并且在进料到高压进料器之前将溶剂加入到蒸汽材料中。高压给料器将材料引入单个消化容器的顶部，液体和碎屑在蒸煮器容器的顶部分离，而不会引起火花的机械装置。含木质素的液体从消化器的中心部分排出并通过闪蒸罐，最终用于木质素和酒精回收。再循环筛网和系统设置在中央提取部分和蒸煮器容器的顶部之间。取代用于再循环的一部分液体被转移到木质素回收中，同时将含有新鲜溶剂的液体加入剩余的再循环液体中。

8. 发明授权

US5681427A Apparatus for treating pulp produced by solvent pulping 失效
标题翻译：用于处理通过溶剂制浆生产的纸浆的设备
公开(公告)号：US5681427A
公开(公告)日：1997-10-28
申请号：US488245
申请日：1995-06-07
申请人： Jairo H. Lora , John Patrick Maley , Brian F. Greenwood , Joseph R. Phillips , David J. Lebel
发明人： Jairo H. Lora , John Patrick Maley , Brian F. Greenwood , Joseph R. Phillips , David J. Lebel
IPC分类号： D21C3/18 , D21C1/02 , D21C3/20 , D21C3/22 , D21C3/24 , D21C7/00 , D21C7/14 , D21C9/02 , D21C9/04 , D21C11/00 , D21C9/06
CPC分类号： D21C1/02 , D21C11/00 , D21C3/20 , D21C3/24 , D21C7/00 , D21C9/02 , D21C9/04
摘要： An apparatus and process for the solvent pulping and washing of pulp using vessels purged of oxygen free gas when the process is arrested or terminated. The washing is accomplished by first continuously passing the pulp to a pressure diffuser, then to a first multi-stage drum displacer washer, and then to a second multi-stage drum displacer. In the pressure diffuser the lignin is washed out of the pulp, utilizing as wash liquid a mixture of solvent and water having a solvent concentration equal to or higher than that required by the extraction process within the digester, and at a pressure at least about 350 psi. The pressure in the second and third stages is lower, and water is the wash liquid in the third stage. Alcohol can be recovered from the spent wash liquid of the first wash stage, so that all but about ten gallons or less of alcohol per ton of pulp is recovered.
摘要翻译：一种用于溶剂制浆和清洗浆料的设备和方法，该方法是在该过程被捕获或终止时清除无氧气体的容器。洗涤通过首先将纸浆连续地通过压力扩散器，然后到达第一多级鼓置换器垫圈，然后到第二多级鼓式置换器来实现。在压力扩散器中，木质素从纸浆中洗出，利用溶剂和水的混合物作为洗涤液体，其溶剂浓度等于或高于蒸煮器内提取过程所需的溶剂浓度，并且在至少约350的压力下 psi。第二阶段和第三阶段的压力较低，第三阶段的水是洗涤液体。可以从第一洗涤阶段的废清洗液中回收酒精，从而回收每吨纸浆中除了约十加仑或更少的酒精之外的所有物质。

9. 发明授权

US5547543A Apparatus for minimizing effluent discharges and recovering chemicals in a pulp mill 失效
标题翻译：用于最大程度减少废纸浆排放和在纸浆厂回收化学品的设备
公开(公告)号：US5547543A
公开(公告)日：1996-08-20
申请号：US274091
申请日：1994-07-12
申请人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan Richardsen , Rolf Ryham , Jarmo Soderman , Karl Wiklund
发明人： Tuomo S. Nykanen , Brian F. Greenwood , Johan Gullichsen , Erkki Kiiskila , Esko Mattelmaki , Joseph R. Phillips , Jan Richardsen , Rolf Ryham , Jarmo Soderman , Karl Wiklund
IPC分类号： D21C9/10 , D21C11/00 , D21C11/12
CPC分类号： D21C11/0021 , Y10S162/08
摘要： Apparatus for a pulp and paper mill, and methods of acting on liquid effluents produced in the mill, which minimizes the discharge of polluting gaseous and liquid effluents to the environment. Liquid effluents from the bleach plant are concentrated (e.g. evaporated), incinerated (e.g. gasified), leached, crystallized (e.g. freeze crystallized) then washed, and then fed to the plant chemical recovery loop. White liquor produced from the recovery boiler melt is fully oxidized and used in place of caustic in the bleach plant. Essentially all sulfuric acid, sulfur dioxide, caustic, and chlorine dioxide necessary for the pulp mill is produced from mill liquid effluents and gas waste streams, on site at the pulp mill. Typical bleaching sequences that can be used are DE.sub.op D.sub.n D, or AZE.sub.o PZP.
摘要翻译：用于纸浆和造纸厂的设备，以及作用于在磨机中产生的液体流出物上的方法，其最大限度地减少污染的气态和液体流出物排放到环境中。来自漂白设备的液体流出物被浓缩（例如蒸发），焚化（例如气化），沥滤，结晶（例如冷冻结晶），然后洗涤，然后进料至植物化学回收循环。从回收锅炉熔体产生的白液被完全氧化并用于漂白设备中的苛性碱。纸浆厂所必需的硫酸，二氧化硫，苛性碱和二氧化氯基本上都是从磨浆液流出物和废气流中产生的。可以使用的典型漂白序列是DEopDnD或AZEo PZP。

10. 发明授权

US5411633A Medium consistency pulp ozone bleaching 失效
标题翻译：中等稠度纸浆臭氧漂白
公开(公告)号：US5411633A
公开(公告)日：1995-05-02
申请号：US693287
申请日：1991-04-30
申请人： Joseph R. Phillips , Brian F. Greenwood , Erwin Funk , Stephen Dunn
发明人： Joseph R. Phillips , Brian F. Greenwood , Erwin Funk , Stephen Dunn
IPC分类号： D21C9/153
CPC分类号： D21C9/153
摘要： Medium consistency (e.g. about 6-15%) paper pulp is effectively bleached with ozone in a carrier gas (typically oxygen) by effecting efficient separation of carrier gas from the pulp after reaction with the ozone, and introducing the ozone into the pulp at a pressure of about 10-13 bar. Ozone in oxygen and medium consistency paper pulp are fed to a fluidizing mixer; the intimate uniform mixture produced is then passed upwardly in a reaction vessel until about 99% of the ozone has been consumed, and then separation of gas from the pulp is initiated by moving the pulp mixture into a generally horizontal tube leading to a gas zone in a large diameter retention vessel. A pressurized gas pad is maintained at and above the introduction of the pulp into the retention vessel, while the level of pulp in the retention vessel is maintained below the point of introduction. The pulp may be withdrawn from the retention vessel with a fluidizing degassing pump, and the pressurized gas removed from the top of the vessel may be fed to an apparatus using oxygen gas under pressure.
摘要翻译：中等稠度（例如约6-15％）纸浆通过在与臭氧反应后有效地从纸浆中分离出载体气体（通常为氧气）中，用臭氧有效漂白，并将臭氧引入到纸浆中压力约10-13巴。将氧气和中等稠度纸浆中的臭氧进料到流化混合器中; 然后将产生的紧密的均匀混合物在反应容器中向上通入，直到约99％的臭氧消耗掉，然后通过将纸浆混合物移动到通向一个气体区域的气体区域中而从纸浆中分离气体大直径保留容器。加压气垫保持在纸浆引入到保留容器中和之上，而保留容器中的纸浆水平保持在引入点以下。纸浆可以用流化脱气泵从保留容器中取出，并且从容器顶部除去的加压气体可以在压力下使用氧气进料至设备。

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