公开(公告)号：US06425976B1

公开(公告)日：2002-07-30

申请号：US09835734

申请日：2001-04-16

申请人： Kent K Sandquist ,  Anders Kullendorff

发明人： Kent K Sandquist ,  Anders Kullendorff

IPC分类号： D21C1112

CPC分类号： F23L7/007 ,  D21C11/125 ,  F23C2201/101 ,  F23G7/04 ,  F23L7/00 ,  F23L9/00 ,  F23L2900/07005 ,  Y02E20/344

摘要： The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black liquor provided in the boiler above the lower furnace, and a number of combustion air levels, whereby the invention incorporates adding oxygen enriched air to the combustion air or directly into the lower furnace at at least one air level underneath the liquor sprayers for the purpose of creating the best possible reducing conditions in the lower furnace, redistributing from the lower furnace combustion air not needed therein following the addition of oxygen enriched air, thereby significantly reducing upward gas velocity underneath the black liquor sprayers, and introducing the redistributed combustion air in the upper furnace, thereby creating the reducing conditions and a controlled temperature in the lower furnace for emission control.

摘要翻译： 本发明涉及一种回收锅炉中黑液气化的方法，该方法具有下部称为下部炉的下部，称为上部炉的上部，用于引入黑液的黑液喷雾器 锅炉在较低的炉子上方以及多个燃烧空气水平，由此本发明包括在燃烧空气中添加富氧空气或者在酒精喷雾器下方的至少一个空气水平处直接进入下炉，以创造最佳的 在下炉中可能的还原条件，在加入富氧空气之后，从其中不需要的低炉燃烧空气重新分配，从而显着减少黑液喷雾器下方的向上气体速度，并将再分布的燃烧空气引入上炉中 在下炉中产生还原条件和控制温度，用于排放控制 ol。

公开(公告)号：US06228214B1

公开(公告)日：2001-05-08

申请号：US09417171

申请日：1999-10-12

申请人： Kent K Sandquist ,  Anders Kullendorff

发明人： Kent K Sandquist ,  Anders Kullendorff

IPC分类号： D21C1112

CPC分类号： F23L7/007 ,  D21C11/125 ,  F23C2201/101 ,  F23G7/04 ,  F23L7/00 ,  F23L9/00 ,  F23L2900/07005 ,  Y02E20/344

摘要： The invention refers to a method for black liquor gasification in recovery boilers, of the type having a lower portion, referred to as a lower furnace and an upper portion, referred to as an upper furnace, black liquor sprayers for introduction of black liquor provided in the boiler above the lower furnace, and a number of combustion air levels, whereby the invention incorporates adding oxygen enriched air to the combustion air or directly into the lower furnace at at least one air level underneath the liquor sprayers for the purpose of creating the best possible reducing conditions in the lower furnace, redistributing from the lower furnace combustion air not needed therein following the addition of oxygen enriched air, thereby significantly reducing upward gas velocity underneath the black liquor sprayers, and introducing the redistributed combustion air in the upper furnace, thereby creating the reducing conditions and a controlled temperature in the lower furnace for emission control.

摘要翻译： 本发明涉及一种回收锅炉中黑液气化的方法，该方法具有下部称为下部炉的下部，称为上部炉的上部，用于引入黑液的黑液喷雾器 锅炉在较低的炉子上方以及多个燃烧空气水平，由此本发明包括在燃烧空气中添加富氧空气或者在酒精喷雾器下方的至少一个空气水平处直接进入下炉，以创造最佳的 在下炉中可能的还原条件，在加入富氧空气之后，从其中不需要的低炉燃烧空气重新分配，从而显着减少黑液喷雾器下方的向上气体速度，并将再分布的燃烧空气引入上炉中 在下炉中产生还原条件和控制温度，用于排放控制 ol。

公开(公告)号：US06790313B1

公开(公告)日：2004-09-14

申请号：US09856961

申请日：2001-11-09

申请人： Kent K. Sandquist ,  Olle Wennberg

发明人： Kent K. Sandquist ,  Olle Wennberg

IPC分类号： D21C1106

CPC分类号： D21C11/08 ,  D21C11/06

摘要： A method to remove sulfides 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 including the 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 stripped off sulfides and other volatile components from the liquor vapor condensate, whereafter the gas stream is fed into a 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.

摘要翻译： 一种在纸浆生产过程中从液体蒸汽冷凝物中除去硫化物和其它挥发性污染物的方法，其中将所提及的液体蒸汽冷凝物送入汽提器，汽提器是包括汽提塔的闭环系统的一部分，再生热氧化过程（RTO ）和SO 2洗涤器，其中气体循环，优选空气，并且这种组分在该环中形成或剥离，之后循环气体从液体蒸气冷凝物中除去硫化物和其它挥发性组分，之后气流 进入RTO过程，其中汽脱的污染物在SO2的形成下，然后将富SO 2的气体导入SO 2洗涤器，其中优选使用碱作为吸收介质，然后将循环气体返回到 脱模剂。