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1. 发明授权

US07824635B2 Filter for exhaust gas from diesel engine and equipment 有权
标题翻译：过滤柴油发动机和设备的废气
公开(公告)号：US07824635B2
公开(公告)日：2010-11-02
申请号：US10580720
申请日：2004-11-24
申请人： Yasuyoshi Kato , Eiji Miyamoto , Masatoshi Fujisawa , Naomi Imada , Hiroshi Ishizaka , Kazuki Kobayashi , Takeshi Hirota
发明人： Yasuyoshi Kato , Eiji Miyamoto , Masatoshi Fujisawa , Naomi Imada , Hiroshi Ishizaka , Kazuki Kobayashi , Takeshi Hirota
IPC分类号： B01D53/94 , B01D46/00 , B01D35/00 , B01J35/00 , F01N3/035
CPC分类号： B01J37/0225 , B01D39/12 , B01D53/9431 , B01J23/40 , F01N3/022 , F01N3/035 , F01N2330/02 , F01N2330/42 , Y10T442/109 , Y10T442/121
摘要： A particulate material removing filter for exhaust gas from a diesel engine is provided. The particulate material removing filter is formed by laminating metal laths having an oxidation catalyst layer containing a noble metal that oxidizes nitrogen oxide in exhaust gas into nitrogen dioxide. The metal laths are laminated to form a laminate in such a manner that the drawing direction of the metal lath processing differs by 90 degrees with each other.
摘要翻译：提供了一种用于来自柴油发动机的废气的颗粒物质除去过滤器。颗粒材料去除过滤器是通过层压具有氧化催化剂层的金属板条形成的，该氧化催化剂层含有将废气中的氮氧化物氧化成二氧化氮的贵金属。金属板条被层压以形成层压体，使得金属板条加工的拉伸方向彼此相差90度。

2. 发明申请

US20070128089A1 Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device 失效
标题翻译：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。

3. 发明授权

US07655064B2 Particulate matter-containing exhaust emission controlling filter, exhaust emission controlling method and device 失效
标题翻译：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：US07655064B2
公开(公告)日：2010-02-02
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： B01D39/00
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。

4. 发明申请

US20130142719A1 EXHAUST GAS PURIFICATION CATALYST AND PRODUCTION METHOD THEREFOR, AND METHOD FOR PURIFYING NITROGEN OXIDE IN EXHAUST GAS 有权
标题翻译：排气净化催化剂及其生产方法，以及在排气中净化氮氧化物的方法
公开(公告)号：US20130142719A1
公开(公告)日：2013-06-06
申请号：US13814523
申请日：2011-08-04
申请人： Keiichiro Kai , Yasuyoshi Kato , Naomi Imada
发明人： Keiichiro Kai , Yasuyoshi Kato , Naomi Imada
IPC分类号： B01J27/053
CPC分类号： B01J27/053 , B01D53/8628 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2255/2092 , B01J21/04 , B01J21/063 , B01J21/08 , B01J23/22 , B01J23/28 , B01J23/30 , B01J35/1019 , B01J37/0201 , B01J37/038 , B01J37/04
摘要： An exhaust gas purification catalyst is made as a composition comprising titanium oxide (TiO2), aluminum sulfate (Al2(SO4)3), an oxide of vanadium (V), and an oxide of molybdenum (Mo) and/or tungsten (W), wherein on titanium oxide having sulfate ions and aluminum ions adsorbed thereon obtained by making contact with aluminum sulfate at more than 1 wt % and not more than 6 wt % relative to titanium oxide in the presence of water, an oxo acid salt of vanadium or a vanadyl salt and an oxo acid or an oxo acid salt of molybdenum and/or tungsten are supported in a proportion of more than 0 atom % and not more than 3 atom %, respectively. By this, the degradation of catalyst performance can be suppressed even with exhaust gas containing potassium compounds at a high concentration in combustion ash.
摘要翻译：制备废气净化催化剂作为包含氧化钛（TiO 2），硫酸铝（Al 2（SO 4）3），钒（V）的氧化物和钼（Mo）和/或钨（W）的氧化物的组合物，其中，在具有硫酸根离子和铝离子的氧化钛上，所述硫酸根离子和铝离子通过在水存在下相对于二氧化钛与硫酸铝接触超过1重量％且不大于6重量％，钒的含氧酸盐或钼和/或钨的氧钒酸和含氧酸或含氧酸盐分别以大于0原子％且不大于3原子％的比例负载。由此，即使在燃烧灰中含有高浓度的钾化合物的废气也能够抑制催化剂性能的降低。

5. 发明申请

US20090246111A1 EXHAUST GAS PURIFICATION CATALYST AND METHOD FOR PRODUCTION THEREOF 审中-公开
标题翻译：排气净化催化剂及其生产方法
公开(公告)号：US20090246111A1
公开(公告)日：2009-10-01
申请号：US12442130
申请日：2008-01-30
申请人： Yasuyoshi Kato , Keiichiro Kai , Naomi Imada
发明人： Yasuyoshi Kato , Keiichiro Kai , Naomi Imada
IPC分类号： B01D53/56 , B01J23/00 , B01J27/199
CPC分类号： B01J23/31 , B01D53/8665 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2257/404 , B01D2257/602 , B01J23/002 , B01J23/28 , B01J23/30 , B01J27/199 , B01J35/06 , B01J37/28 , B01J2523/00 , B01J2523/47 , B01J2523/54 , B01J2523/55 , B01J2523/69 , B01J2523/68
摘要： The invention realizes a catalyst which is hardly deteriorated even when volatile catalyst-poisoning compounds such as P and As are accumulated and which can reduce the rate of oxidation of SO2 to a level as low as a fraction of that of the catalyst in the prior art, and provides an exhaust gas purification catalyst which can maintain a high activity and a low rate of oxidation of SO2 for a long time even with any diversified coal, a method of producing the same, and an exhaust gas purification method using the same. Disclosed is an exhaust gas purification catalyst having a composition comprising oxides of titanium (Ti), molybdenum (Mo) and/or tungsten (W), vanadium (V) and bismuth (Bi), wherein the atomic ratio of Ti:(Mo and/or W):V is 75 to 98.9:1 to 0.1 to 10 and the atomic ratio of Bi/(Mo and/or W) is 0.1 to 0.8.
摘要翻译：本发明实现了即使当诸如P和As等挥发性催化剂中毒化合物被累积并且可以将SO 2的氧化速率降低到现有技术中的催化剂的一部分的程度时也几乎不劣化的催化剂并且提供了即使使用任何多种煤也能长时间保持SO 2的高活性和低氧化率的废气净化催化剂，其制造方法和使用该废气净化催化剂的废气净化方法。公开了具有钛（Ti），钼（Mo）和/或钨（W），钒（V）和铋（Bi）的氧化物的组成的废气净化催化剂，其中Ti：（Mo和 /或W）：V为75〜98.9:1〜0.1〜10，Bi /（Mo和/或W）的原子比为0.1〜0.8。

6. 发明申请

US20050130836A1 Catalyst for removing nitrogen oxides, method for production thereof and method for removing nitrogen oxides 有权
标题翻译：用于除去氮氧化物的催化剂，其制造方法以及除去氮氧化物的方法
公开(公告)号：US20050130836A1
公开(公告)日：2005-06-16
申请号：US10506444
申请日：2003-02-28
申请人： Yasuyoshi Kato , Naomi Imada , Yoshinori Nagai
发明人： Yasuyoshi Kato , Naomi Imada , Yoshinori Nagai
IPC分类号： F01N3/08 , B01D53/86 , B01D53/94 , B01J21/06 , B01J23/10 , B01J23/30 , B01J37/02 , B01D53/56
CPC分类号： B01J23/30 , B01D53/8628 , B01D53/9418 , B01D2251/2062 , B01D2255/2065 , B01D2255/20707 , B01D2255/20776 , B01D2255/50 , B01J21/063 , B01J23/10 , B01J37/0215
摘要： Disclosed is a method for producing a catalyst for removing nitrogen oxides which comprises dispersing a hydrated titanium (Ti) oxide or dried material thereof, tungstic acid or a salt thereof, and cerium (Ce) dioxide in a dispersion medium to form a sol-like material, mixing the sol-like material with an aqueous medium to form a catalyst slurry or paste, supporting the catalyst slurry or paste on a catalyst carrier, and then calcinating the carrier; in which catalyst the Ce dioxide is prevented from being embedded in the Ti oxide to realize such a high degree of dispersion of the Ce dioxide on the surface of the Ti oxide as comparable with the case wherein cerium ions are dispersed in micro voids of a zeolite by ion exchange; and the catalyst is free from the occurrence of such phenomena as sintering of the Ti oxide, and deterioration of zeolite with steam when a zeolite is used as carrier.
摘要翻译：公开了一种用于除去氮氧化物的催化剂的方法，其包括在分散介质中分散水合钛（Ti）氧化物或其干燥物质，钨酸或其盐和铈（Ce）二氧化物以形成溶胶状材料，将溶胶状材料与水性介质混合以形成催化剂浆料或糊料，将催化剂浆料或糊料负载在催化剂载体上，然后煅烧载体; 在这种催化剂中，防止二氧化铈嵌入Ti氧化物中，以实现二氧化铈在Ti氧化物表面上的这种高度分散，与将铈离子分散在沸石微孔中的情况相当通过离子交换; 并且催化剂没有发生如氧化钛烧结这样的现象，并且当使用沸石作为载体时，催化剂不会发生沸石与蒸汽的劣化。

7. 发明授权

US6143687A Denitration catalyst, process for preparing the same, and exhaust gas purification method 失效
标题翻译：脱硝催化剂，其制备方法和废气净化方法
公开(公告)号：US6143687A
公开(公告)日：2000-11-07
申请号：US254376
申请日：1999-04-02
申请人： Naomi Imada , Yasuyoshi Kato
发明人： Naomi Imada , Yasuyoshi Kato
IPC分类号： B01D53/86 , B01J21/06 , B01J23/22 , B01J23/24 , B01J33/00 , B01J37/02 , B01J31/00 , B01J23/00 , C01B21/00
CPC分类号： B01J33/00 , B01D53/8628 , B01J37/0219 , B01J37/0244 , B01J21/063 , B01J23/22 , B01J23/24 , Y10S502/507
摘要： A denitration catalyst for use in the reduction of nitrogen oxides contained in an exhaust gas containing highly deliquescent salts as dust with ammonia, which bears thereon a porous coating of a water-repellent organic resin, a porous coating of a mixture of a water-repellent organic resin with inorganic oxide particles, or a porous coating of a mixture of a water-repellent organic resin with catalyst component particles. The denitration catalyst can be prepared, for example, by coating the surface of a denitration catalyst with an aqueous dispersion containing a water-repellent organic resin having a lower concentration, drying the coating, further coating the dried coating with an aqueous dispersion containing a water-repellent organic resin having a higher concentration, and then drying the coating to form a porous coating of a water-repellent organic resin. This denitration catalyst, even when used in the treatment of an exhaust gas containing ash containing highly deliquescent salts, enables the water-repellent porous coating formed on the surface to prevent the salts that have deliquesced from entering the catalyst. This can prevent the deterioration of the catalyst and enables a high catalytic activity to be maintained for a long period of time.
摘要翻译： PCT No.PCT / JP98 / 03083 Sec。一九九九年四月二日 102（e）1999年4月2日PCT PCT 1998年7月9日PCT公布。出版物WO99 / 02262 日期1999年1月21日用于还原包含在含有高度潮解性盐的废气中的氮氧化物的脱硝催化剂，其中所述废气含有氨，作为防尘有机树脂的多孔涂层，混合物的多孔涂层具有无机氧化物颗粒的防水有机树脂，或防水有机树脂与催化剂组分颗粒的混合物的多孔涂层。脱硝催化剂可以例如通过用含有较低浓度的拒水性有机树脂的水性分散体涂覆脱硝催化剂的表面来制备，干燥涂层，进一步用含有水的水分散体涂覆干燥的涂层 - 具有较高浓度的有机有机树脂，然后干燥该涂层以形成防水有机树脂的多孔涂层。该脱硝催化剂即使用于处理含有高度潮解盐的灰分的废气，也能够使表面上形成的防水多孔涂层防止已经潮解的盐进入催化剂。这可以防止催化剂的劣化，并且能够长期保持高的催化活性。

8. 发明授权

US09044736B2 Method for producing metal substrate for flue gas denitration catalyst 有权
标题翻译：生产废气脱硝催化剂金属基材的方法
公开(公告)号：US09044736B2
公开(公告)日：2015-06-02
申请号：US13807086
申请日：2011-06-28
申请人： Yasuyoshi Kato , Naomi Imada , Keiichiro Kai , Kotoe Matsuyama
发明人： Yasuyoshi Kato , Naomi Imada , Keiichiro Kai , Kotoe Matsuyama
IPC分类号： B01J27/00 , B01J27/188 , B01J23/00 , B01J23/02 , B01J21/04 , B05D1/18 , B05D1/36 , B05D3/02 , B05D3/04 , B05D3/10 , B05D3/12 , B05D7/00 , B01D53/86 , B01J37/02 , B01J23/28 , B01J35/00 , B01J37/00 , B01J37/28 , B01J27/199
CPC分类号： B01J27/188 , B01D53/8625 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/30 , B01J23/002 , B01J23/28 , B01J27/199 , B01J35/0026 , B01J37/0009 , B01J37/0203 , B01J37/0207 , B01J37/0217 , B01J37/0225 , B01J37/0234 , B01J37/28 , B01J2523/00 , B01J2523/47 , B01J2523/55 , B01J2523/68
摘要： A metal substrate for flue gas-denitration catalyst that, like SUS304, can be used without corroding is provided by improving the corrosion resistance of SUS430 substrate that is inexpensive and can easily be supplied stably. A method for producing the metal substrate for flue gas-denitration catalyst, wherein the method comprising the steps of: lath-processing a band-shaped steel plate made of ferrite stainless steel into a band-shaped metal lath; (1) degreasing process oil adhering to the metal lath; (2) passing the metal lath through a solution containing phosphoric acid and surfactant to load the solution; (3) draining off the excess solution; and (4) drying and heating the solution-loaded metal lath to react the phosphoric acid with the substrate, in which respective steps are carried out sequentially to form a film of phosphate compound on a surface of the substrate.
摘要翻译：通过提高SUS430基板的廉价且易于稳定供给的耐腐蚀性，可以提供与SUS304类似的不含腐蚀的烟气脱硝催化剂用金属基材。一种烟道气脱硝催化剂用金属基材的制造方法，其特征在于，包括以下步骤：将由铁素体不锈钢制的带状钢板条板加工成带状的金属板条; （1）脱脂工艺油附着在金属板条上; （2）使金属板条通过含有磷酸和表面活性剂的溶液以加载溶液; （3）排出多余的溶液; 和（4）干燥并加热载有溶液的金属板条以使磷酸与基材反应，其中各步骤依次进行以在基材的表面上形成磷酸盐化合物的膜。

9. 发明授权

US08673250B2 Exhaust gas purification catalyst and production method therefor, and method for purifying nitrogen oxide in exhaust gas 有权
标题翻译：废气净化催化剂及其制造方法以及废气中氮氧化物的净化方法
公开(公告)号：US08673250B2
公开(公告)日：2014-03-18
申请号：US13814523
申请日：2011-08-04
申请人： Keiichiro Kai , Yasuyoshi Kato , Naomi Imada
发明人： Keiichiro Kai , Yasuyoshi Kato , Naomi Imada
IPC分类号： B01D53/56 , B01J21/06 , B01J21/02 , B01J23/22 , B01J23/28 , B01J37/00
CPC分类号： B01J27/053 , B01D53/8628 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2255/2092 , B01J21/04 , B01J21/063 , B01J21/08 , B01J23/22 , B01J23/28 , B01J23/30 , B01J35/1019 , B01J37/0201 , B01J37/038 , B01J37/04
摘要： An exhaust gas purification catalyst is made as a composition comprising titanium oxide (TiO2), aluminum sulfate (Al2(SO4)3), an oxide of vanadium (V), and an oxide of molybdenum (Mo) and/or tungsten (W), wherein on titanium oxide having sulfate ions and aluminum ions adsorbed thereon obtained by making contact with aluminum sulfate at more than 1 wt % and not more than 6 wt % relative to titanium oxide in the presence of water, an oxo acid salt of vanadium or a vanadyl salt and an oxo acid or an oxo acid salt of molybdenum and/or tungsten are supported in a proportion of more than 0 atom % and not more than 3 atom %, respectively. By this, the degradation of catalyst performance can be suppressed even with exhaust gas containing potassium compounds at a high concentration in combustion ash.
摘要翻译：制备废气净化催化剂作为包含氧化钛（TiO 2），硫酸铝（Al 2（SO 4）3），钒（V）的氧化物和钼（Mo）和/或钨（W）的氧化物的组合物，其中，在具有硫酸根离子和铝离子的氧化钛上，所述硫酸根离子和铝离子通过在水存在下相对于二氧化钛与硫酸铝接触超过1重量％且不大于6重量％，钒的含氧酸盐或钼和/或钨的氧钒酸和含氧酸或含氧酸盐分别以大于0原子％且不大于3原子％的比例负载。由此，即使在燃烧灰中含有高浓度的钾化合物的废气也能够抑制催化剂性能的降低。

10. 发明申请

US20130129590A1 EXHAUST GAS PURIFYING CATALYST 有权
标题翻译：排气净化催化剂
公开(公告)号：US20130129590A1
公开(公告)日：2013-05-23
申请号：US13731387
申请日：2012-12-31
申请人： Yasuyoshi Kato , Keiichiro Kai , Naomi Imada
发明人： Yasuyoshi Kato , Keiichiro Kai , Naomi Imada
IPC分类号： B01J27/199 , B01D53/64
CPC分类号： B01J27/199 , B01D53/64 , B01D53/8628 , B01D53/8665 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2257/602 , B01J21/063 , B01J23/002 , B01J27/198 , B01J35/06 , B01J37/0225 , B01J37/0242 , B01J37/0244 , B01J37/04 , B01J2523/00 , B01J2523/41 , B01J2523/47 , B01J2523/51 , B01J2523/55 , B01J2523/68 , B01J2523/69
摘要： To overcome the problem of a conventional catalyst and to provide an exhaust gas purifying catalyst that meets the requirement concerning Hg oxidation activity and SO2 oxidation activity; i.e., an exhaust gas purifying catalyst which specifically reduces percent SO2 oxidation, while maintaining percent Hg oxidation at a high level.The invention provides an exhaust gas purifying catalyst which comprises a composition containing oxides of (i) titanium (Ti), (ii) molybdenum (Mo) and/or tungsten (W), (iii) vanadium (V), and (iv) phosphorus (P), wherein the catalyst contains Ti, Mo and/or W, and V in atomic proportions of 85 to 97.5:2 to 10: 0.5 to 10, and has an atomic ratio of P/(sum of V and Mo and/or W) of 0.5 to 1.5, and an exhaust gas purifying method comprising exposing an exhaust gas containing a nitrogen oxide (NOX) and metallic mercury (Hg) to the catalyst in the presence of ammonia as a reducing agent, to thereby perform reduction of NOX contained in the exhaust gas and oxidation of metallic mercury (Hg) contained in the exhaust gas.
摘要翻译：为了克服常规催化剂的问题，提供一种符合Hg氧化活性和SO2氧化活性要求的排气净化催化剂; 即特别减少SO2氧化百分比的废气净化催化剂，同时保持高水平的Hg氧化百分比。本发明提供一种废气净化催化剂，其包含含有（i）钛（Ti），（ii）钼（Mo）和/或钨（W），（iii）钒（V）和（iv）磷（P），其中催化剂含有Ti，Mo和/或W，原子比例为V原子比为85〜97.5:2〜10:0.5〜10，原子比为P /（V与Mo和 /或W）为0.5〜1.5，以及废气净化方法，其包括在氨作为还原剂的存在下将含有氮氧化物（NOX）和金属汞（Hg）的废气暴露于所述催化剂，从而进行还原的废气中含有的NO x和废气中所含的金属汞（Hg）的氧化。

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