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    Rectifying device
    2.
    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

    Applicant: Shigeyuki Nishijima ,  Masaaki Taniguchi ,  Atsushi Morii ,  Osamu Naito

    Inventor： Shigeyuki Nishijima ,  Masaaki Taniguchi ,  Atsushi Morii ,  Osamu Naito

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

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

    Abstract: 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.

    Abstract translation: 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。

    Catalyst for purifying an exhaust gas
    4.
    发明授权
    Catalyst for purifying an exhaust gas 失效
    用于净化废气的催化剂

    公开(公告)号：US5677254A

    公开(公告)日：1997-10-14

    申请号：US665820

    申请日：1996-06-19

    Applicant: Shigeru Nojima ,  Kozo Iida ,  Norihisa Kobayashi ,  Satoru Serizawa ,  Atsushi Morii

    Inventor： Shigeru Nojima ,  Kozo Iida ,  Norihisa Kobayashi ,  Satoru Serizawa ,  Atsushi Morii

    IPC: B01J29/04 ,  B01J29/88 ,  B01J29/46 ,  B01J29/48

    CPC classification number: B01J29/88 ,  B01J29/04

    Abstract: This invention relates to a catalyst for purifying an exhaust gas, which has a denitrification property in the lean atmosphere and good durability and is hardly deteriorated even in a high temperature rich atmosphere. The feature thereof consists in a catalyst for purifying an exhaust gas, comprising a crystalline silicate having the specified X-ray diffraction pattern and a chemical composition represented by the following chemical formula in the term of mole ratios of oxides under dehydrated state, (1.+-.0.8)R.sub.2 O.�aM.sub.2 O.sub.3.bM'O.cAl.sub.2 O.sub.3 !.ySiO.sub.2 in which R is at least one of alkali metal ions and hydrogen ion, M is at least one elementary ion selected from the group consisting of Group VIII elements of Periodic Table, rare earth elements, titanium, vanadium, chromium, niobium, antimony and gallium, M' is an alkaline earth metal ion selected from magnesium, calcium, strontium and barium ions, a>0, 20>b.gtoreq.0, a+c=1 and 3000>y>11, on which (I) at least one member selected from platinum group metals and (II) at least one metal selected from platinum group metals and at least one metal selected from the group consisting of rare earth elements are supported.

    Abstract translation: 本发明涉及一种排气净化用催化剂，其在贫气氛下具有脱氮性，耐久性良好，即使在高温环境下也难以劣化。 其特征在于，用于净化废气的催化剂，包括具有规定的X射线衍射图的结晶硅酸盐和由脱水状态的氧化物的摩尔比表示的以下化学式表示的化学组成，（1+ /0.8)R2O.Am2O3.bM'O.cAl2O3.p.SiO2，其中R是碱金属离子和氢离子中的至少一种，M是至少一种选自元素周期的VIII族元素的元素离子 表，稀土元素，钛，钒，铬，铌，锑和镓，M'是选自镁，钙，锶和钡离子的碱土金属离子，a> 0,20> b> / = 0，a + c = 1和3000> y> 11，其中（I）选自铂族金属中的至少一种和（II）选自铂族金属中的至少一种金属和选自稀有金属中的至少一种金属 支持地球元素。

    Nitrogen oxide removal catalyst
    6.
    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

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

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

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

    CPC classification number: B01J38/00 ,  B01D53/8628 ,  B01D53/8631 ,  B01J23/30 ,  B01J37/0244

    Abstract: 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.

    Abstract translation: 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。

    Denitrification system
    7.
    发明授权
    Denitrification system 失效
    脱氮系统

    公开(公告)号：US5697403A

    公开(公告)日：1997-12-16

    申请号：US271513

    申请日：1994-07-07

    Applicant: Toshiyuki Onishi ,  Atsushi Morii ,  Shigeyuki Nishijima

    Inventor： Toshiyuki Onishi ,  Atsushi Morii ,  Shigeyuki Nishijima

    IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  F15D1/00 ,  F23J15/00

    CPC classification number: F15D1/00 ,  F23J15/003

    Abstract: The object of the present invention is to provide a device to make flow uniform in a denitrification system, which can achieve a predetermined flow regulation effect with low pressure loss independently of the gas flow rate. According to the present invention, the device installed on the upstream side of a chemical injection means for the denitrification system is composed of at least one perforated plate 11, and the perforated plate 11 can be turned by a rotating shaft 10 or 10a from the closed position where the gas flow path is closed to the open position where the gas flow path is opened or vice versa.

    Abstract translation: 本发明的目的是提供一种在脱氮系统中使流动均匀的装置，其能够独立于气体流量而实现具有低压力损失的预定流量调节效果。 根据本发明，安装在用于脱氮系统的化学喷射装置的上游侧的装置由至少一个多孔板11组成，多孔板11可以通过旋转轴10或10a从闭合 气体流动路径关闭到气体流路打开的打开位置的位置，反之亦然。

    Method for treating ammonia
    9.
    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

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

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

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

    CPC classification number: B01D53/8634 ,  B01D53/0454

    Abstract: 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.

    Abstract translation: 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。

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