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    EXHAUST GAS PURIFICATION METHOD AND DEVICE
    3.
    发明公开
    EXHAUST GAS PURIFICATION METHOD AND DEVICE 审中-公开
    排气净化方法和装置

    公开(公告)号：EP2693013A1

    公开(公告)日：2014-02-05

    申请号：EP12765519.9

    申请日：2012-03-30

    申请人： Hitachi Zosen Corporation

    发明人： HIKAZUDANI, Susumu ,  SHIMIZU, Kana

    IPC分类号： F01N3/18 ,  F01N3/08 ,  F01N3/24

    CPC分类号： F01N3/085 ,  F01N3/04 ,  F01N3/0885 ,  F01N3/206 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/011 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2590/02 ,  F01N2610/02 ,  Y02A50/2344

    摘要： Provided are a method for purifying an exhaust gas capable of performing a stable exhaust gas treatment consistently, and a device therefor. The exhaust gas purification method contains: subjecting a combustion exhaust gas containing NOx and SOx to a treatment for adsorbing and removing SOx with an SOx adsorbent; then adding a denitration reducing agent to the treated gas; and performing a denitration treatment with a denitration catalyst, in which plural SOx adsorption columns (7) and (8) for adsorbing and removing SOx with an SOx adsorbent are provided, and adsorption of SOx is performed in a part of the units, during which regeneration of the SOx adsorbent is performed in the other of the units, thereby performing adsorption of SOx and regeneration of the SOx adsorbent alternately.

    摘要翻译： 本发明提供能够始终稳定地进行排气处理的排气净化方法及其装置。 该废气净化方法包括：使含有NOx和SOx的燃烧废气经过用SOx吸附剂吸附和除去SOx的处理; 然后向处理过的气体中加入脱硝还原剂; 并且用脱硝催化剂进行脱硝处理，其中设置有用SOx吸附剂吸附和除去SOx的多个SOx吸附塔（7）和（8），并且在部分单元中进行SOx吸附，其间 在另一个单元中进行SOx吸附剂的再生，从而交替进行SOx的吸附和SOx吸附剂的再生。

    COMBUSTION EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PURIFYING COMBUSTION EXHAUST GAS
    4.
    发明公开
    COMBUSTION EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PURIFYING COMBUSTION EXHAUST GAS 审中-公开
    VERBRENNUNGSABGASREINIGUNGSKATALYSATOR UND VERFAHREN ZUR REINIGUNG VON VERBRENNUNGSABGAS

    公开(公告)号：EP3124113A1

    公开(公告)日：2017-02-01

    申请号：EP15769841.6

    申请日：2015-03-23

    申请人： Hitachi Zosen Corporation

    发明人： YOSHIDA, Satoshi ,  HIKAZUDANI, Susumu ,  SHIMIZU, Kana ,  SHONO, Emi

    IPC分类号： B01J29/46 ,  B01D53/86 ,  B01J29/68 ,  B01J37/08 ,  F01N3/08 ,  F01N3/10 ,  F01N3/28

    CPC分类号： B01J29/68 ,  B01D53/9418 ,  B01D2251/208 ,  B01D2255/20746 ,  B01D2255/50 ,  B01D2255/504 ,  B01J23/75 ,  B01J29/072 ,  B01J29/46 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0246 ,  B01J2229/186 ,  B01J2229/40 ,  F01N3/20 ,  F01N2370/04 ,  F01N2570/14 ,  Y02T10/24

    摘要： To provide a catalyst for purifying a combustion exhaust gas and a method for purifying a combustion exhaust gas, in which in the removal of a nitrogen oxide from an exhaust gas in a relatively low temperature range discharged, for example, from an internal combustion engine, such as a marine diesel engine, the selectivity of an alcohol reducing agent to the denitration reaction is increased as compared to the ordinary technique, and thereby the denitration capability is enhanced with an amount of the reducing agent that is equivalent to the ordinary technique, thereby enabling the exhaust gas processing performed with a high efficiency. The denitration catalyst used in a method for purifying a combustion exhaust gas of removing a nitrogen oxide in the exhaust gas by making the catalyst into contact with the combustion exhaust gas having an alcohol as a reducing agent added thereto, contains zeolite as a support having supported thereon a catalyst metal, in a powder X-ray diffraction (XRD) measurement of the denitration catalyst a ratio (relative peak intensity ratio) r = I/J of a height I of a diffraction peak at a diffraction angle (2θ) of from 7.8 to 10.0º and a height J of a diffraction peak at a diffraction angle (2θ) of from 28.0 to 31.0º being in a range of from 3.0 to 5.0.

    摘要翻译： 为了提供一种用于净化燃烧废气的催化剂和一种用于净化燃烧废气的方法，其中在从例如内燃机排出的较低温度范围内从排气中除去氮氧化物时， 例如船用柴油发动机，与常规技术相比，醇还原剂对脱硝反应的选择性增加，从而与通常的技术相当的还原剂的量使脱硝能力增强，从而 能够高效率地进行废气处理。 通过使催化剂与添加了作为还原剂的醇的燃烧废气接触来净化排气中的氮氧化物的燃烧废气的净化方法中使用的脱硝催化剂含有沸石作为负载的载体 在催化剂金属的粉末X射线衍射（XRD）测量中，脱硝催化剂的衍射角（2π）处的衍射峰的高度I的比（相对峰强度比）r = I / J 从7.8至10.0度，衍射角（2¸）为28.0至31.0度的衍射峰的高度J在3.0至5.0的范围内。

    END-TREATING METHOD FOR CATALYST-CARRYING HONEYCOMB STRUCTURE IN EXHAUST GAS DENITRATION SYSTEM
    8.
    发明公开
    END-TREATING METHOD FOR CATALYST-CARRYING HONEYCOMB STRUCTURE IN EXHAUST GAS DENITRATION SYSTEM 审中-公开
    EINEM ABGASENTSTICKUNGSSYSTEM的ENDBEHANDLUNGSVERFAHRENFÜRKATALYSATORTRAGENDE WABENSTRUKTUR

    公开(公告)号：EP2818243A1

    公开(公告)日：2014-12-31

    申请号：EP12869182.1

    申请日：2012-12-17

    申请人： Hitachi Zosen Corporation

    发明人： YAMAMOTO, Seigo ,  HIKAZUDANI, Susumu ,  HINO, Naoe ,  SHIMIZU, Kana

    IPC分类号： B01J37/02 ,  B01D53/94 ,  B01J21/16 ,  B01J23/30 ,  B01J35/04

    CPC分类号： B01J21/16 ,  B01D53/8628 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/9022 ,  B01D2257/404 ,  B01J23/30 ,  B01J27/24 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0215

    摘要： [Problem] To provide a method for processing (an) edge(s) of a catalyst-supporting honeycomb structure in an exhaust gas denitration apparatus, the method being capable of filling fine cracks on a surface of the catalyst layer which will become a cause of abrasion of an edge of the catalyst-supporting honeycomb structure by solid particles such as dust particles, coal ashes, etc. in an exhaust gas and sufficiently compensating abrasion resistant strength of the edge of the honeycomb structure. [Solution] In a catalyst-carrying honeycomb structure in an exhaust gas denitration apparatus, a corrugated plate-like inorganic fiber sheet and a flat plate-like inorganic fiber sheet, each supporting thereon a denitration catalyst containing a silica sol, titania particles, and ammonium metavanadate as a whole primary denitration catalyst layer, are alternately laminated. In a method for processing (an) edge(s) of a catalyst-supporting honeycomb structure, at least the edge of gas inlet side among the gas inlet side and the gas outlet side of the denitration catalyst-supporting honeycomb structure having the whole primary denitration catalyst layer is(are) dipped in a denitration catalyst-containing slurry for edge processing composed of a silica sol, titania particles or kaolin particles, and ammonium metatungstate to form (a) coating layer(s) of the denitration catalyst-containing slurry in the edge(s) of the honeycomb structure, and this(these) is(are) dried and then calcinated to form (an) edge secondary denitration catalyst layer(s).

    摘要翻译： [问题]为了提供一种在废气脱硝装置中处理（a）催化剂负载蜂窝结构体的边缘的方法，该方法能够在催化剂层的表面上填充细小的裂纹，这将成为原因 通过废气中的固体颗粒如灰尘颗粒，灰渣等对催化剂负载的蜂窝结构体的边缘进行磨损，并充分补偿蜂窝结构的边缘的耐磨强度。 [解决方案]在废气脱硝装置中的催化剂载体的蜂窝结构体中，分别在其上负载有含有二氧化硅溶胶，二氧化钛颗粒和二氧化硅颗粒的脱硝催化剂的波纹板状无机纤维片材和平板状无机纤维片材 偏钒酸铵作为整个初级脱硝催化剂层交替层压。 在催化剂负载型蜂窝结构体的边缘加工方法中，至少具有全部初级的脱硝催化剂负载型蜂窝结构体的气体入口侧和气体出口侧的气体入口侧的边缘 将脱硝催化剂层浸渍在由硅溶胶，二氧化钛颗粒或高岭土颗粒和偏钨酸铵组成的用于边缘处理的含脱硝催化剂的浆料中，以形成（a）含脱硝催化剂的浆料的涂层 在蜂窝结构的边缘中，并且（这些）被干燥，然后煅烧以形成（一个）边缘二次脱硝催化剂层。