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    Wet-type exhaust desulfurizing apparatus
    2.
    发明授权
    Wet-type exhaust desulfurizing apparatus 有权
    湿式排气脱硫装置

    公开(公告)号：US08172931B2

    公开(公告)日：2012-05-08

    申请号：US12441648

    申请日：2007-09-19

    申请人： Takuro Ueda ,  Takanori Nakamoto ,  Atsushi Katagawa ,  Hajime Okura ,  Hiroshi Ishizaka

    发明人： Takuro Ueda ,  Takanori Nakamoto ,  Atsushi Katagawa ,  Hajime Okura ,  Hiroshi Ishizaka

    IPC分类号： B01D47/06

    CPC分类号： B01D53/504 ,  B01D53/185 ,  B01D2251/404 ,  B01D2251/608 ,  B01D2257/2045 ,  B01D2257/2047

    摘要： An absorbing tower is provided in its side wall with a gas entrance for introducing a combustion exhaust gas into the absorbing tower, and an absorbing liquid is sprayed from the nozzles of a spray header into the exhaust gas introduced to rise from the gas entrance. A trough is arranged in the side wall of the absorbing tower and above the gas entrance, and a nose having a horseshoe shape in a top plan view and extending into tower is disposed in the tower side wall portion of the gas entrance other than the portion arranging the trough and at the same or at substantially the same height as the portion of the trough. The absorbing liquid, which is sprayed from the nozzle and drops along the absorbing tower wall portion, is rescattered to the center portion of the absorbing tower excepting the entrance of the absorbing tower, so that the gas-liquid contact efficiency is improved while suppressing an increase in pressure loss, thereby to prevent the drift of the gas at the tower wall portion.

    摘要翻译： 吸收塔在其侧壁上设置有用于将燃烧废气引入吸收塔的气体入口，并且吸收液体从喷雾头的喷嘴喷射到从气体入口引入的废气中。 在吸收塔的侧壁和气体入口的上方布置有槽，并且在顶部平面图中具有马蹄形并延伸到塔的鼻子设置在除了部分之外的气体入口的塔侧壁部分 布置槽并且与槽的部分处于相同或基本上相同的高度。 从喷嘴喷射并沿着吸收塔壁部滴下的吸收液被除去吸收塔的入口以外的吸收塔的中心部分，从而提高气液接触效率，同时抑制气液接触效率 增加压力损失，从而防止塔壁部分处的气体漂移。

    Wet-type exhaust gas desulfurizer
    3.
    发明授权
    Wet-type exhaust gas desulfurizer 有权
    湿式废气脱硫剂

    公开(公告)号：US08092582B2

    公开(公告)日：2012-01-10

    申请号：US12295070

    申请日：2007-03-27

    申请人： Takuro Ueda ,  Atsushi Katagawa ,  Hiroshi Ishizaka

    发明人： Takuro Ueda ,  Atsushi Katagawa ,  Hiroshi Ishizaka

    IPC分类号： B01D47/06

    CPC分类号： B01D53/504 ,  B01D53/79 ,  F23J15/04

    摘要： An absorbing tower provided with plural spray headers (3) which each have a plurality of spray nozzles (5) and are arranged in a multi-stage state in the flow direction of exhaust gas, in which an absorption liquid containing a slurry of limestone or lime is sprayed through the nozzles (5) to absorb and remove sulfur oxide contained in exhaust gas, wherein each spray nozzle (5) is of an annular spray type (a hollow cone type) and the spray nozzles (5) in the neighborhood of the tower wall have such a structure that the fluid is sprayed radially at spray angles of 50 to 80° with the direction counter to the flow of exhaust gas as the center, while the nozzles (5) in the central part of the tower have such a structure that the fluid is sprayed radially at spray angles of 80 to 130° with the direction counter to the flow thereof as the center. According to the invention, the channeling of exhaust gas in the tower can be inhibited by using two kinds of spray nozzles (5) to thereby prevent the desulfurization performance from lowering caused by blow-by of exhaust gas in the neighborhood of the tower wall. Further, an extremely high pressure loss can be inhibited by the flow-regulating effect of sprayed droplets. Thus, a wet-type exhaust gas desulfurizer with a reduced total cost is obtained.

    摘要翻译： 一种吸收塔，其具有多个喷雾头（3），每个喷头具有多个喷嘴（5），并且在排气的流动方向上以多级状态布置，其中含有石灰石或 石灰通过喷嘴（5）喷射以吸收和去除废气中所含的硫氧化物，其中每个喷嘴（5）是环形喷雾型（中空圆锥型），喷嘴（5）在附近 塔壁具有使流体以与废气流为中心相反的方向以50〜80°的喷射角径向喷射的结构，塔的中心部分的喷嘴（5）具有这样的结构 流体以与其作为中心的流动相反的方向以80至130°的喷雾角径向喷射的结构。 根据本发明，可以通过使用两种喷嘴（5）来抑制塔中排气的通道，从而防止由塔壁附近排气引起的脱硫性能降低。 此外，喷雾液滴的流动调节效果可以抑制极高的压力损失。 因此，获得总成本降低的湿式废气脱硫器。

    WET-TYPE EXHAUST DESULFURIZING APPARATUS
    4.
    发明申请
    WET-TYPE EXHAUST DESULFURIZING APPARATUS 有权
    湿式脱水装置

    公开(公告)号：US20090320687A1

    公开(公告)日：2009-12-31

    申请号：US12441648

    申请日：2007-09-19

    申请人： Takuro Ueda ,  Takanori Nakamoto ,  Atsushi Katagawa ,  Hajime Okura ,  Hiroshi Ishizaka

    发明人： Takuro Ueda ,  Takanori Nakamoto ,  Atsushi Katagawa ,  Hajime Okura ,  Hiroshi Ishizaka

    IPC分类号： B01D53/18

    CPC分类号： B01D53/504 ,  B01D53/185 ,  B01D2251/404 ,  B01D2251/608 ,  B01D2257/2045 ,  B01D2257/2047

    摘要： An absorbing tower is provided in its side wall with a gas entrance for introducing a combustion exhaust gas into the absorbing tower, and an absorbing liquid is sprayed from the nozzles of a spray header into the exhaust gas introduced to rise from the gas entrance. A trough is arranged in the side wall of the absorbing tower and above the gas entrance, and a nose having a horseshoe shape in a top plan view and extending into tower is disposed in the tower side wall portion of the gas entrance other than the portion arranging the trough and at the same or at substantially the same height as the portion of the trough. The absorbing liquid, which is sprayed from the nozzle and drops along the absorbing tower wall portion, is rescattered to the center portion of the absorbing tower excepting the entrance of the absorbing tower, so that the gas-liquid contact efficiency is improved while suppressing an increase in pressure loss, thereby to prevent the drift of the gas at the tower wall portion.

    摘要翻译： 吸收塔在其侧壁上设置有用于将燃烧废气引入吸收塔的气体入口，并且吸收液体从喷雾头的喷嘴喷射到从气体入口引入的废气中。 在吸收塔的侧壁和气体入口的上方布置有槽，并且在顶部平面图中具有马蹄形并延伸到塔的鼻子设置在除了部分之外的气体入口的塔侧壁部分 布置槽并且与槽的部分处于相同或基本上相同的高度。 从喷嘴喷射并沿着吸收塔壁部滴下的吸收液被除去吸收塔的入口以外的吸收塔的中心部分，从而提高气液接触效率，同时抑制气液接触效率 增加压力损失，从而防止塔壁部分处的气体漂移。

    WET-TYPE EXHAUST GAS DESULFURIZER
    5.
    发明申请
    WET-TYPE EXHAUST GAS DESULFURIZER 有权
    湿式除气除尘器

    公开(公告)号：US20090173234A1

    公开(公告)日：2009-07-09

    申请号：US12295070

    申请日：2007-03-27

    申请人： Takuro Ueda ,  Atsushi Katagawa ,  Hiroshi Ishizaka

    发明人： Takuro Ueda ,  Atsushi Katagawa ,  Hiroshi Ishizaka

    IPC分类号： B01D47/06

    CPC分类号： B01D53/504 ,  B01D53/79 ,  F23J15/04

    摘要： An absorbing tower provided with plural spray headers (3) which each have a plurality of spray nozzles (5) and are arranged in a multi-stage state in the flow direction of exhaust gas, in which an absorption liquid containing a slurry of limestone or lime is sprayed through the nozzles (5) to absorb and remove sulfur oxide contained in exhaust gas, wherein each spray nozzle (5) is of an annular spray type (a hollow cone type) and the spray nozzles (5) in the neighborhood of the tower wall have such a structure that the fluid is sprayed radially at spray angles of 50 to 80° with the direction counter to the flow of exhaust gas as the center, while the nozzles (5) in the central part of the tower have such a structure that the fluid is sprayed radially at spray angles of 80 to 130° with the direction counter to the flow thereof as the center. According to the invention, the channeling of exhaust gas in the tower can be inhibited by using two kinds of spray nozzles (5) to thereby prevent the desulfurization performance from lowering caused by blow-by of exhaust gas in the neighborhood of the tower wall. Further, an extremely high pressure loss can be inhibited by the flow-regulating effect of sprayed droplets. Thus, a wet-type exhaust gas desulfurizer with a reduced total cost is obtained.

    摘要翻译： 一种吸收塔，其具有多个喷雾头（3），每个喷头具有多个喷嘴（5），并且在排气的流动方向上以多级状态布置，其中含有石灰石或 石灰通过喷嘴（5）喷射以吸收和去除废气中所含的硫氧化物，其中每个喷嘴（5）是环形喷雾型（中空圆锥型），喷嘴（5）在附近 塔壁具有使流体以与废气流为中心相反的方向以50〜80°的喷射角径向喷射的结构，塔的中心部分的喷嘴（5）具有这样的结构 流体以与其作为中心的流动相反的方向以80至130°的喷雾角径向喷射的结构。 根据本发明，可以通过使用两种喷嘴（5）来抑制塔中排气的通道，从而防止由塔壁附近排气引起的脱硫性能降低。 此外，喷雾液滴的流动调节效果可以抑制极高的压力损失。 因此，获得总成本降低的湿式废气脱硫器。

    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent
    8.
    发明授权
    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent 失效
    湿式烟气脱硫装置及使用固体脱硫剂的方法

    公开(公告)号：US5686053A

    公开(公告)日：1997-11-11

    申请号：US532759

    申请日：1995-10-11

    申请人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    发明人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    IPC分类号： B01D53/34 ,  B01D53/50 ,  C01F11/06 ,  B01D53/78

    CPC分类号： B01D53/502 ,  B01D53/501 ,  B01D53/504 ,  B01D53/508 ,  Y10S423/05

    摘要： A wet-type flue gas desulfurization method and plant making use of a solid desulfurizing agent in which exhaust gas exhausted from a combustion apparatus such as a boiler is brought into contact with absorbing liquid to absorb sulfur oxide from the exhaust gas into the absorbing liquid followed by neutralization of the absorbing liquid containing the sulfur oxide thus absorbed. The solid desulfurizing agent is selectively retained in an absorbing liquid neutralizing zone and the absorbing liquid, containing water as a main constituent and solid products formed from the absorbed sulfur oxide, is selectively removed from the neutralizing zone. In the neutralizing zone the upward flow of the absorbing liquid, optionally augmented by an upward flow of air or water, forms a fluidized bed of limestone particles, thereby preventing coating of the limestone by gypsum and thereby retaining reactivity of limestone. According to the present invention, coexistence of Al and F in the absorbing liquid seldom deteriorates the desulfurizing performance. Further, it is possible to reduce power and cost required to grind limestone and to achieve a higher desulfurizing performance.

    摘要翻译： PCT No.PCT / JP95 / 00921 Sec。 371 1995年10月11日第 102（e）1995年10月11日日期PCT提交1995年5月11日PCT公布。 公开号WO95 / 31272 日期：1995年11月23日一种湿式烟气脱硫方法和使用固体脱硫剂的设备，其中从锅炉等燃烧装置排出的废气与吸收液体接触以从排气中吸收硫氧化物 进入吸收液体，然后中和含有如此吸收的硫氧化物的吸收液体。 选择性地将固体脱硫剂保持在吸收液中和区中，从中和区选择性地除去以水为主要成分的吸收液和由吸收的硫氧化物形成的固体产物。 在中和区中，任选地通过向上的空气或水流增加的吸收液体的向上流动形成石灰石颗粒的流化床，从而防止石膏被石膏包覆，从而保持石灰石的反应性。 根据本发明，吸收液中Al和F的共存很少使脱硫性能下降。 此外，可以降低研磨石灰石所需的功率和成本，并且实现更高的脱硫性能。

    EXHAUST GAS TREATING METHOD AND APPARATUS
    9.
    发明申请
    EXHAUST GAS TREATING METHOD AND APPARATUS 有权
    排气处理方法和装置

    公开(公告)号：US20100071348A1

    公开(公告)日：2010-03-25

    申请号：US12516845

    申请日：2007-12-24

    申请人： Kazuki Kobayashi ,  Hirofumi Kikkawa ,  Hiroshi Ishizaka ,  Hiroshi Takezaki ,  Hiroyuki Nosaka

    发明人： Kazuki Kobayashi ,  Hirofumi Kikkawa ,  Hiroshi Ishizaka ,  Hiroshi Takezaki ,  Hiroyuki Nosaka

    IPC分类号： F01N11/00 ,  B01D53/56 ,  F01N5/02 ,  F01N9/00

    CPC分类号： F23J15/003 ,  B01D53/10 ,  B01D53/50 ,  B01D53/64 ,  B01D53/8625 ,  B01D2257/602 ,  F23J15/006 ,  F23J15/025 ,  F23J2215/60 ,  F23J2217/10 ,  F23J2219/40 ,  F23J2219/60 ,  F23J2219/70 ,  F23J2900/15081

    摘要： After adjusting an exhaust gas temperature at an exit of a heat recovery unit (11) of an exhaust gas treating apparatus to not more than a dew point temperature of sulfur trioxide (SO3), a heavy metal adsorbent is supplied from a heavy metal adsorbent supply unit (16) disposed in an exhaust gas at an entrance of a precipitator (4) or an intermediate position within the precipitator (4), and the exhaust gas containing the heavy metal adsorbent is supplied into the precipitator (4). Preferably at this stage, the heavy metal adsorbent is supplied into the exhaust gas at the entrance of the precipitator (4) 0.1 seconds after the exhaust gas temperature at the exit of the heat recovery unit (11) has been adjusted to not more than the dew point temperature of SO3. Further preferably, in order to prevent acid corrosion of equipment, the heavy metal adsorbent is supplied after spraying an alkali into the exhaust gas at the entrance or exit of the heat recovery unit (11) and adjusting the exhaust gas temperature at the exit of the heat recovery unit to not more than the dew point temperature of SO3. Accordingly, even when coal with a high sulfur content is used as fuel, heavy metals in the exhaust gas can be removed effectively.

    摘要翻译： 在废气处理装置的热回收单元（11）的出口处的排气温度调节至三氧化硫（SO3）的露点温度以下之前，重金属吸附剂由重金属吸附剂供给源 设置在除尘器（4）的入口处的排气中或者除尘器（4）内的中间位置的单元（16），并且将含有重金属吸附剂的排气供给到除尘器（4）中。 优选在此阶段，在热回收单元（11）的出口处的排气温度已经调整到不超过该温度的0.1秒之后，将重金属吸附剂供入到除尘器（4）入口处的废气中 露点温度SO3。 进一步优选为了防止设备的酸腐蚀，在热回收单元（11）的入口或出口处的排气中喷入碱后，再供给重金属吸附剂，并调节出口处的排气温度 热回收单位不得超过SO3的露点温度。 因此，即使使用具有高硫含量的煤作为燃料，也能够有效地除去废气中的重金属。

    Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device
    10.
    发明申请
    Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device 失效
    含颗粒物废气排放控制过滤器，废气排放控制方法及装置

    公开(公告)号：US20070128089A1

    公开(公告)日：2007-06-07

    申请号：US10580506

    申请日：2004-11-24

    申请人： Yasuyoshi Kato ,  Takashi Michimoto ,  Eiji Miyamoto ,  Naomi Imada ,  Masatochi Fujisawa ,  Kazuki Kobayashi ,  Hiroshi Ishizaka ,  Takeshi Hirota

    发明人： Yasuyoshi Kato ,  Takashi Michimoto ,  Eiji Miyamoto ,  Naomi Imada ,  Masatochi Fujisawa ,  Kazuki Kobayashi ,  Hiroshi Ishizaka ,  Takeshi Hirota

    IPC分类号： B01D50/00

    CPC分类号： F01N3/0231 ,  B01D53/9431 ,  B01J35/04 ,  F01N3/022 ,  F01N3/035 ,  F01N2330/42

    摘要： A particulate matter-removing filter being resistant to clogging and ash blocking, requiring no special means such as back-washing and heating combustion, and being formed of inexpensive materials; and exhaust emission controlling method and device using this. (1) A particulate-matter-containing exhaust emission controlling filter which uses as a basic unit a pair of porous corrugated sheet and a porous flat sheet that support an exhaust emission controlling catalyst, has a molding formed by laminating the porous corrugated sheets so that their ridge lines alternately cross perpendicularly, has one of side surfaces, perpendicularly crossing the corrugated sheet ridge lines, of the molding or mutually-adjoining two surfaces that are the perpendicularly-crossing side surfaces sealed, and has exhaust gas in-flow passage and out-flow passage respectively formed between porous corrugated sheets via a porous flat sheet. (2) A filter having the exhaust emission controlling catalyst that is an oxidizing catalyst for oxidizing nitrogen monoxide in an exhaust gas.

    摘要翻译： 一种颗粒状物质除去过滤器，不受阻塞和灰分阻塞，不需要特殊的方法，例如后洗和加热燃烧，并且由廉价的材料形成; 废气排放控制方法和装置。 （1）一种颗粒状废气排放控制过滤器，其使用一对多孔波纹板和支撑排气排放控制催化剂的多孔平板作为基本单元，具有通过层压多孔波纹板形成的成型体，使得 它们的脊线交替垂直地交叉，具有垂直交叉的侧表面密封的模制或相互邻接的两个表面垂直相交的波纹板脊线的一个侧表面，并且具有废气流入通道和出口 分别在多孔波纹片之间经由多孔平板形成。 （2）一种具有排气排放控制催化剂的过滤器，其是用于氧化废气中的一氧化氮的氧化催化剂。