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18 条记录 (耗时 0.026 秒)

    Method for the denitration of exhaust gas
    1.
    发明授权
    Method for the denitration of exhaust gas 失效
    废气脱硝方法

    公开(公告)号：US5505919A

    公开(公告)日：1996-04-09

    申请号：US282962

    申请日：1994-07-29

    申请人： Atsushi Morii ,  Satoru Serizawa ,  Osamu Naito ,  Masanori Demoto ,  Toshiyuki Onishi ,  Norihisa Kobayashi ,  Kouzo Iida

    发明人： Atsushi Morii ,  Satoru Serizawa ,  Osamu Naito ,  Masanori Demoto ,  Toshiyuki Onishi ,  Norihisa Kobayashi ,  Kouzo Iida

    IPC分类号： B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  B01J8/02

    CPC分类号： B01D53/8625 ,  B01D53/8628 ,  Y02C20/10

    摘要： A method for the denitration of exhaust gas from a gas turbine or an internal combustion engine which comprises (a) reducing a part of the NO.sub.2 constituting NO.sub.x contained in the exhaust gas to NO by means of a reduction catalyst bed for reducing NO.sub.2 to NO, the reduction catalyst bed being installed in flow communication with the exhaust gas outlet of the gas turbine or internal combustion engine, and (b) injecting NH.sub.3 into the exhaust gas within an exhaust heat recovery unit and then decomposing and removing NO.sub.x contained in the exhaust gas and now composed chiefly of NO, by means a denitration catalyst bed installed within the exhaust heat recovery unit to effect the catalytic reduction of NO.sub.x with NH.sub.3.

    摘要翻译： 一种用于从燃气轮机或内燃机脱硝废气的方法，该方法包括：（a）通过用于将NO 2还原为NO的还原催化剂床将排气中所含的构成NO 2的NO 2的一部分还原为NO， 所述还原催化剂床安装成与所述燃气轮机或内燃机的排气出口流动连通，以及（b）将NH 3喷射到排气热回收单元内的废气中，然后分解和除去废气中所含的NOx 现在主要由NO组成，通过设置在废热回收装置内的脱硝催化剂床，以实现用NH 3催化还原NOx。

    Method for treating ammonia
    3.
    发明授权
    Method for treating ammonia 失效
    氨处理方法

    公开(公告)号：US5589146A

    公开(公告)日：1996-12-31

    申请号：US626577

    申请日：1996-04-02

    申请人： Atsushi Morii ,  Osamu Naito ,  Toshiyuki Onishi ,  Hitoshi Nakamura ,  Kouzo Iida

    发明人： Atsushi Morii ,  Osamu Naito ,  Toshiyuki Onishi ,  Hitoshi Nakamura ,  Kouzo Iida

    IPC分类号： B01D53/56 ,  B01D53/04 ,  B01D53/34 ,  B01D53/58 ,  B01D53/86 ,  B01D53/94 ,  C01C3/00

    CPC分类号： B01D53/8634 ,  B01D53/0454

    摘要： A method for treating ammonia in an exhaust gas on the downstream side of a dry denitration device using ammonia as a reducing agent comprises the step of alternately carrying out ammonia adsorption and ammonia desorption/decomposition to continuously treat ammonia in the exhaust gas in a plurality of constitutional units parallelly connected on an exhaust gas line, the aforesaid constitutional units being constituted so as to carry out the steps of adsorbing/removing ammonia in an ammonia adsorbent-filling tower disposed at a position, where an exhaust gas temperature is 200.degree. C. or less, on the downstream side of the dry denitration device; heating, up to a temperature of 300.degree. C. or more, the ammonia adsorbent-filling tower on which ammonia is adsorbed in a saturated state, to desorb ammonia; and decomposing ammonia in an ammonia decomposition catalyst-filling tower disposed on a desorption ammonia gas line.

    摘要翻译： 使用氨作为还原剂在干脱硝装置的下游侧的废气中处理氨的方法包括交替进行氨吸附和氨解吸/分解以在废气中连续处理多个氨中的氨的步骤 结构单元并排连接在废气管线上，上述结构单元构成为在排气温度为200℃的氨气吸附剂填充塔中进行氨吸附除去步骤。 或更少，在干脱硝装置的下游侧; 加热至300℃以上的温度，将氨吸附在饱和状态的氨吸附剂填充塔脱氨; 并在设置在解吸氨气管线上的氨分解催化剂填充塔中分解氨。

    Method for the regeneration of a denitration catalyst
    6.
    发明授权
    Method for the regeneration of a denitration catalyst 失效
    脱硝催化剂再生方法

    公开(公告)号：US6025292A

    公开(公告)日：2000-02-15

    申请号：US023219

    申请日：1998-02-12

    申请人： Yoshiaki Obayashi ,  Kouzo Iida ,  Atsushi Morii ,  Osamu Naito ,  Akira Hattori

    发明人： Yoshiaki Obayashi ,  Kouzo Iida ,  Atsushi Morii ,  Osamu Naito ,  Akira Hattori

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01D53/96 ,  B01J23/92 ,  B01J38/60 ,  B01J27/28

    CPC分类号： B01J23/92 ,  B01D53/8625 ,  B01J38/60 ,  Y02C20/30

    摘要： Disclosed are (1) a method for the regeneration of a denitration catalyst wherein, in order to regenerate a denitration catalyst having reduced denitration power, the catalyst is cleaned with a cleaning fluid having a hydrofluoric acid concentration of 0.3 to 3% by weight and maintained at a temperature of 20 to 80.degree. C., and (2) a method for the regeneration of a denitration catalyst which comprises the steps of cleaning a denitration catalyst having reduced denitration power under the conditions described in (1) above, drying the cleaned catalyst, and impregnating the catalyst with a catalytically active component so as to support it on the catalyst.

    摘要翻译： 公开了（1）一种用于再生脱硝催化剂的方法，其中为了再生具有降低的脱硝功率的脱硝催化剂，用具有0.3至3重量％的氢氟酸浓度的清洁流体清洁催化剂，并保持 温度为20〜80℃，（2）脱硝催化剂的再生方法，其特征在于，在上述（1）所述的条件下，对具有降低的脱硝功率的脱硝催化剂进行清洗， 催化剂，并用催化活性组分浸渍催化剂以便将其载于催化剂上。

    Rectifying device
    7.
    发明授权
    Rectifying device 失效
    整流装置

    公开(公告)号：US5680884A

    公开(公告)日：1997-10-28

    申请号：US639999

    申请日：1996-04-30

    申请人： Shigeyuki Nishijima ,  Masaaki Taniguchi ,  Atsushi Morii ,  Osamu Naito

    发明人： Shigeyuki Nishijima ,  Masaaki Taniguchi ,  Atsushi Morii ,  Osamu Naito

    IPC分类号： F15D1/02 ,  B01D53/34 ,  B01F5/06 ,  B01J19/24 ,  B01J19/32

    CPC分类号： B01J19/32 ,  B01F5/061 ,  B01F5/0614 ,  B01J19/24 ,  B01J2219/00072 ,  B01J2219/32286 ,  B01J2219/32293 ,  B01J2219/32296 ,  B01J2219/326

    摘要： A high-performance rectifying device promotes the diffusion of energy, temperature and concentration in a fluid stream with a small pressure loss. The device is a lattice type rectifying device provided within a fluid flow passageway for equalizing the flow velocity distribution of the same fluid. Lattice elements each consist of two triangular plates disposed so as to form two opposed surfaces of a pyramid having its apex on the downstream side of the fluid flow and two other triangular plates forming two opposed surfaces of another pyramid having its apex jointed with the first-mentioned apex and having its bottom surface positioned on the downstream side of the fluid flow. The latter two opposed surfaces have their orientations deviated by 90 degrees from the two opposed surfaces on the upstream side. The lattice elements are arrayed in juxtaposition in directions perpendicular to the fluid flow with the orientation of adjacent lattice elements deviated by 90 degrees from each other and are connected in such a manner that the bottom surfaces of the above-mentioned pyramids may form a lattice. Furthermore the ratio of the length, in a direction parallel to the flow, of the lattice element to the breadth, in the direction perpendicular to the flow, of the lattice element should be kept in a range of 1.5-2.0. The lattice element may also be formed of a rectangular plate twisted by 90 degrees in the direction along the direction of the fluid flow.

    摘要翻译： 高性能整流装置促进能量，温度和浓度在流体流中的扩散，压力损失小。 该装置是设置在流体流动通道内用于均衡相同流体的流速分布的格子式整流装置。 晶格元件由两个三角形板组成，两个三角形板被设置成在流体流动的下游侧形成具有顶点的金字塔的两个相对表面，另外两个三角形板形成另一个金字塔的相对表面，其另一个金字塔的顶点与第一 - 并且其底表面位于流体流的下游侧。 后两个相对的表面具有从上游侧的两个相对表面偏离90度的方向。 晶格元素在垂直于流体流动的方向上并列排列，其中相邻晶格元素的取向相互偏离90度，并以上述棱锥的底表面形成晶格的方式连接。 此外，在晶格元素的与流动方向垂直的方向上的平行于流动的方向上的晶格长度与宽度的比例应保持在1.5-2.0的范围内。 格子元件也可以由沿流体流动方向的方向扭转90度的矩形板形成。

    Nitrogen oxide removal catalyst
    10.
    发明授权
    Nitrogen oxide removal catalyst 失效
    氧化氮去除催化剂

    公开(公告)号：US5869419A

    公开(公告)日：1999-02-09

    申请号：US871520

    申请日：1997-06-09

    申请人： Yoshiaki Obayashi ,  Kozo Iida ,  Shigeru Nojima ,  Atsushi Morii ,  Osamu Naito

    发明人： Yoshiaki Obayashi ,  Kozo Iida ,  Shigeru Nojima ,  Atsushi Morii ,  Osamu Naito

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01D53/96 ,  B01J23/30 ,  B01J37/02 ,  B01J38/00 ,  B01J23/00 ,  B01J8/00 ,  B01J23/16

    CPC分类号： B01J38/00 ,  B01D53/8628 ,  B01D53/8631 ,  B01J23/30 ,  B01J37/0244

    摘要： This invention effectively utilizes a solid type honeycomb-shaped NO.sub.x removal catalyst which has been used in a catalytic ammonia reduction process and hence reduced in NO.sub.x removal power, and thereby provides an inexpensive catalyst having NO.sub.x removal power equal to that of a fresh catalyst. The nitrogen oxide removal catalyst of this invention, which is useful in a process wherein ammonia is added to exhaust gas and nitrogen oxides present in the exhaust gas are catalytically reduced, has a two-layer structure composed of a lower layer comprising a spent solid type nitrogen oxide removal catalyst and an upper layer comprising a fresh TiO.sub.2 -WO.sub.3 -V.sub.2 O.sub.5 ternary or TiO.sub.2 -WO.sub.3 binary catalyst powder which has been applied to the lower layer so as to give a coating thickness of 100 to 250 .mu.m. Moreover, the catalyst power constituting the upper layer is a catalyst powder obtained by pulverizing a spent solid type nitrogen oxide removal catalyst.

    摘要翻译： 本发明有效地利用了催化氨还原方法中使用的固体型蜂窝状NOx去除催化剂，从而降低了NOx去除能力，从而提供了具有等于新鲜催化剂的NOx去除功率的便宜的催化剂。 本发明的氮氧化物去除催化剂可用于将排放气体中存在氨和排出气体中存在的氮氧化物的方法进行催化还原的方法中，具有由下层构成的二层结构，该下层由废固体型 氮氧化物去除催化剂和上层，其包含新的TiO 2 -WO 3-V 2 O 5三元或TiO 2 -WO 3二元催化剂粉末，其被施加到下层以使涂层厚度为100-250μm。 此外，构成上层的催化剂功率是通过粉碎废固体型氮氧化物去除催化剂而获得的催化剂粉末。