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1. 发明授权

EP2396105B1 METHANOL PURIFICATION METHOD AND APPARATUS 有权
公开(公告)号：EP2396105B1
公开(公告)日：2018-08-22
申请号：EP09839848.0
申请日：2009-02-12
申请人： A.H. Lundberg Systems Limited
发明人： DER, Bruce , JENSEN, Allan Stewart
IPC分类号： B01D53/72 , B01D3/00 , B01D5/00 , D21C11/06 , B01D3/14
CPC分类号： C07C29/78 , B01D3/143 , B01D5/0012 , B01D5/0063 , B01D53/002 , B01D2256/24 , B01D2257/80 , B01D2258/05 , D21C11/06
摘要： The invention relates to a method and apparatus to recover and purify methanol from gases produced in the digester during the kraft pulping process. The gas is typically recovered as a foul gas (called stripper off gas or SOG) comprising methanol, water and various other contaminants. The gas is then treated with successive decanting and distillation steps to remove impurities, thereby producing highly purified methanol.

2. 发明授权

EP2427598B1 PROCESS FOR IMPROVED LEACHING OF ELECTROSTATIC PRECIPITATOR ASH FROM A RECOVERY BOILER 有权转让
标题翻译： FOR电除尘器灰浸出改进方法从回收锅炉
公开(公告)号：EP2427598B1
公开(公告)日：2016-01-06
申请号：EP09846901.8
申请日：2009-05-06
申请人： Valmet Aktiebolag
发明人： WIMBY, Martin , NUNES, Joana
IPC分类号： D21C11/06 , B01D43/00 , B01D53/74 , B01D53/80
CPC分类号： D21H13/00 , D21C11/06

3. 发明公开

EP2951346A1 METHOD FOR RECOVERING CHEMICALS AND BY-PRODUCTS FROM HIGH-SULPHIDITY PULPING LIQUORS 有权
标题翻译：中回收化学品和副产物从中透出碱高硫化
公开(公告)号：EP2951346A1
公开(公告)日：2015-12-09
申请号：EP14706866.2
申请日：2014-02-03
申请人： Andritz Oy
发明人： McKEOUGH, Paterson
IPC分类号： D21C11/00 , D21C11/06
CPC分类号： D21C11/12 , D21C3/022 , D21C11/0007 , D21C11/0035 , D21C11/0085 , D21C11/06
摘要： A method used in connection with the recovery of pulping chemicals from spent pulping liquor produced by kraft-type pulping at very high sulphidity. In the method, spent pulping liquor is acidified to a relatively low pH which converts a most or all of the sulphide and hydrosulphide in the liquor to hydrogen sulfide. Sulphur containing gases released from the acidification of the spent pulping liquor, together with other sulphur gases collected at the pulp mill, are converted into an acid compound. This acid compound is employed as an acidification agent in the acidification of the spent pulping liquor. The amount of acid compound generated by the conversion of sulphur containing gases may be sufficient to provide most, if not all, of the acid needed for the acidification of the spent pulping liquor.

4. 发明授权

EP1099021B1 METHOD AND ARRANGEMENT FOR CLEANING CONTAMINATED CONDENSATE INCLUDING A COMBINED STRIPPER/CONDENSER 有权
标题翻译：方法和系统清洗污冷凝使用组合洗涤器/电容器
公开(公告)号：EP1099021B1
公开(公告)日：2011-09-07
申请号：EP99935237.0
申请日：1999-07-05
申请人： Sällström, Stig
发明人： LUNDGREN, Allan
IPC分类号： D21C11/06
CPC分类号： D21C11/10 , D21C11/06 , Y10S159/08 , Y10S159/16
摘要： This invention relates to a method for cleaning unclean condensate, emanated when producing cellulose pulp including evaporation of spent liquor under utilization of a cleaning plant having several condensers, coupled in series, characterized in that process steam from the last evaporation stage and unclean condensate are introduced into a combined stripper/condenser, the process steam and the condensate being brought to flow in opposite directions so that direct heat exchange occurs, resulting in that volatile compounds of the condensate are separated and are taken up by the steam under simultaneous indirect cooling, resulting in condensation of the main part of the process steam, that the remaining process steam is gradually flowing furtheron, the process steam being successively cooled indirectly, resulting in that water and turpentine are first condensed and collected and that methanol is condensed, collected condensate being separated from turpentine, which is removed from the plant and is reintroduced to the stripper/condenser and that methanol is removed from the plant, that principally cleaned condensate is collected at the bottom of the combined stripper/condenser and is removed from the plant or is further purified. The invention also relates to a cleaning plant.

5. 发明公开

EP1424435A3 Method of reducing nitrogen oxide emissions in a chemical pulp mill 无效
标题翻译：为降低NOx排放的化学制浆磨法
公开(公告)号：EP1424435A3
公开(公告)日：2004-06-09
申请号：EP03396102.0
申请日：2003-11-14
申请人： Andritz Oy
发明人： Saviharju, Kari , Eneberg, Henrik , Jaakkola, Heikki , Lammentausta, Sakari , Mattelmäki, Esko , Schönberg, Ake , Honkanen, Risto
IPC分类号： D21C11/06 , D21C11/12 , B01D3/34 , B01D53/56 , B01D53/58
CPC分类号： B01D53/8625 , B01D3/38 , B01D53/56 , B01D53/58 , D21C11/06 , D21C11/12
摘要： The present invention relates to recovery of ammonia from ammonia-containing material flows in a chemical pulp mill for decreasing nitrogen oxide emissions of the mill. When practicing this method, the ammonia-containing material flow originating from steam stripping of condensates is adjusted by means of alkali to a value of over 10 and is made into contact with steam for separating ammonia from the material flow. The recovered ammonia is used as a chemical in a combustion device in the chemical pulp mill in a way known per se to reduce detrimental nitrogen oxide emissions of the mill.

6. 发明公开

EP1268925A1 METHOD FOR IMPROVED TURPENTINE RECOVERY FROM MODERN COOKING PLANTS 有权
标题翻译： VERFAHREN ZUR VERBESSERTENTERPENTINRÜCKGEWINNUNGIN EINER MODERNEN KOCHANLAGE
公开(公告)号：EP1268925A1
公开(公告)日：2003-01-02
申请号：EP00987538.6
申请日：2000-12-20
申请人： Metso Chemical Pulping Oy
发明人： UUSITALO, Päivi , SVEDMAN, Mikael , VAISTOMAA, Jukka , HAASLAHTI, Hannu
IPC分类号： D21C11/06
CPC分类号： D21C11/0007 , D21C11/06
摘要： A method for the preparation of pulp by means of alkaline cooking, in which method spent liquor is transferred to pressurized tanks, and at least one liquor is expanded corresponding to a temperature difference of 1 to 5 °C. The generated steam is led to turpentine recovery. Thus, the removal of turpentine and gases dissolved in said liquor is effective, the amount of recovered turpentine increases, and pulp of better washability and higher quality is obtained.
摘要翻译：一种通过碱性烹饪制备纸浆的方法，其中将废液转移到加压罐中，并且至少一种液体相应于1至5℃的温度差膨胀。所产生的蒸汽被引到松节油复苏。因此，去除溶解在所述液体中的松节油和气体是有效的，回收的松节油的量增加，并且获得更好的洗涤性和更高质量的纸浆。

7. 发明授权

EP0820545B1 PROCESS AND APPARATUS FOR REMOVING LOW CONCENTRATION, HIGH-VOLUME NON-CONDENSABLE GASES PRODUCED IN A KRAFT PULPING PROCESS 失效
标题翻译：方法和设备拆卸浓度的大批量NIEDERIGER在电机融合过程中发生挥发气体
公开(公告)号：EP0820545B1
公开(公告)日：2002-09-25
申请号：EP96920079.9
申请日：1996-04-11
申请人： KVAERNER PULPING AB
发明人： BARSIN, Joseph, A. , OSCARSSON, Bo , SMITH, David
IPC分类号： D21C11/12 , D21C11/06
CPC分类号： D21C11/06 , D21C11/12
摘要： An apparatus for introducing a low concentration, high-volume non-condensable gas into a chemical recovery steam generator furnace comprising: a plurality of gas inlet pipes, each gas inlet pipe having a source end and a nozzle end, in which the source end of the pipe is connected to a source of said low concentration, high-volume non-condensable gas and the nozzle end of the pipe, which comprises a nozzle, vents to said chemical recovery steam generator furnace; a preheater positioned in close proximity to said pipe and upstream of said nozzle; a secondary air port with a source end and a furnace end, in which the source end of said port is connected to a source of such secondary air and the furnace end of said port vents to said chemical recovery steam generator furnace; wherein the area enclosed by said secondary air port is greater than the area of said nozzle and wherein said nozzle is positioned within the area enclosed by said secondary air port such that said pipe and said port are substantially co-axial with respect to one another, is described.

8. 发明公开

EP1155184A1 METHOD OF PRODUCING PROCESS STEAM FROM A BLACK LIQUOR 有权
标题翻译：用于生产蒸汽SCHWARZL EYE
公开(公告)号：EP1155184A1
公开(公告)日：2001-11-21
申请号：EP98957254.0
申请日：1998-11-09
申请人： KVAERNER PULPING TECHNOLOGIES AB
发明人： NYSTRÖM, Per , SNEKKENES, Vidar , GUSTAVSSON, Lennart
IPC分类号： D21C11/06 , D21C11/10
CPC分类号： D21C11/06 , D21C11/10
摘要： Method of producing a process steam (16) from a first black liquor (8) derived in connection with the production of paper pulp, wherein said first black liquor (8) is treated to give a second black liquor (10) of a higher concentration than said first black liquor as well as a liquid (13) of low concentration, whereafter said process steam (16) is produced from said low concentration liquid (13).

9. 发明公开

EP1144757A1 A METHOD OF CLEANING SULFIDE CONTAMINATED CONDENSATES 有权
标题翻译：清理方法与硫化橡胶污染
公开(公告)号：EP1144757A1
公开(公告)日：2001-10-17
申请号：EP99963745.7
申请日：1999-11-24
申请人： Excelentec Holding AB
发明人： SANDQUIST, Kent, K. , WENNBERG, Olle
IPC分类号： D21C11/08 , D21C11/06
CPC分类号： D21C11/08 , D21C11/06
摘要： A method to remove sulphides and other volatile contaminants from liquor vapor condensate in a pulp manufacturing process, where the mentioned liquor vapor condensate is fed into a stripper, which is part of a closed loop system comprising said stripper, a regenerative thermal oxidization process (RTO) and a SO2 scrubber, in which loop a gas is circulated, preferably air and such components formed or stripped off, in this loop whereafter the circulating gas is stripping off sulphides and other volatile components from the liquor vapor condensate, whereafter the gas stream is fed into an RTO process, where the stripped off contaminants are combusted are under formation of SO2 and thereafter the SO2 enriched gas is led to a SO2 scrubber, where preferably alkali is used as absorption medium, and thereafter the circulating gas is returned back into the stripper.

10. 发明公开

EP1030105A2 Verfahren und Anlage zur Energierückgewinnung aus Abdampf 审中-公开
标题翻译： Verfahren und Anlage zurEnergierückgewinnungaus Abdampf
公开(公告)号：EP1030105A2
公开(公告)日：2000-08-23
申请号：EP00102942.0
申请日：2000-02-14
申请人： Andritz-Patentverwaltungs-Gesellschaft m.b.H.
发明人： Münster, Heinrich, Dipl.-Ing.
IPC分类号： F22B1/16
CPC分类号： F22B1/16 , D21C11/06 , Y02P70/24
摘要： Die Erfindung betrifft ein Verfahren zur Energierückgewinnung aus Abdampf einer thermomechanischen oder chemo- thermomechanischen Holzstoffanlage. Sie ist vornehmlich dadurch gekennzeichnet, daß der Abdampf erst zur Eindampfung von Abwasser und anschließend zur Erzeugung von Reindampf beispielsweise für eine Papiermaschine herangezogen wird. Weiters betrifft die Erfindung eine Anlage zur Durchführung des Verfahrens.
摘要翻译：为了从热机械或化学热机械木材加工厂的废气中回收能量，最初用于蒸发废水，给出纯蒸汽，如造纸机。水蒸发在几个阶段进行。排气在0-6 bar过压的压力下使用，优选使用4-6 bar超压。来自废水蒸发的馏出物与木材或纸/纸板制造过程中的淡水供应一起使用。来自排气蒸汽的冷凝用于对废水进行加热，以相对于废水流动方向移动。包括用于从废水蒸发的废气中回收能量的组件的独立权利要求（2）。

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