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公开(公告)号：US4916107A
公开(公告)日：1990-04-10
申请号：US272311
申请日：1988-11-17
CPC分类号： B01J23/30 , B01D53/8628 , B01J23/85
摘要： A catalyst for the selective reduction with ammonia of nitrogen oxides from an intimate mixture of at least 3 metals in the form of their oxides, namely, titanium, tungsten and at least one of the metals vanadium, iron, niobium, molybdenum, with an atomic ratio of Ti to the other metals of 1:0.001 to 1, wherein there is used as oxide of the titanium a product obtained by flame hydrolysis, which product is impregnated with solutions of the salts of the other metals and is dried and calcined at a high temperature.
摘要翻译： 一种催化剂，用于选择性还原氨氧化物，该氧化物由至少3种以氧化物形式的金属，即钛，钨和至少一种金属钒，铁，铌，钼中的至少一种具有原子 Ti与其他金属的比例为1:0.001至1，其中用作通过火焰水解获得的钛的氧化物，该产物用其它金属的盐的溶液浸渍并在 高温。
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2.发明授权
公开(公告)号：US4963332A
公开(公告)日：1990-10-16
申请号：US384754
申请日：1989-07-25
CPC分类号： F01N3/208 , B01D53/8625 , B01D53/8696 , B01D53/9409 , B01D53/9495 , F01N2560/026 , F01N2560/14 , F01N2570/18 , F01N2610/02 , F01N2610/146 , F01N2900/0422 , Y02T10/24
摘要： A method for the removal of nitrogen oxides contained in exhaust gases of an optionally fluctuating composition with a temperature of 0.degree.-600.degree. C. by means of catalytic reduction at a preselected stoichiometric ratio between the concentration of reducing agent and the concentration of nitrogen oxide in which the reducing agent is dosed in a pulsed manner.
摘要翻译： 通过以预选的化学计量比在还原剂的浓度与氮氧化物的浓度之间通过催化还原来除去包含在任选波动的组合物的废气中的氮氧化物的温度为0℃-600℃的方法 其中还原剂以脉冲方式配制。
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公开(公告)号：US4814146A
公开(公告)日：1989-03-21
申请号：US18247
申请日：1987-02-24
CPC分类号： B01J33/00
摘要： A device for the containment of ceramic catalyst monoliths particularly of four cornered cross sectional area as well as for the combination of a plurality thereof into a package. The device includes elastic gaskets arranged on one of the ends of the monoliths and partitions for the form fitting containment of the elements into a cassette.
摘要翻译： 用于容纳陶瓷催化剂整料的装置，特别是四个角横截面积的装置，以及用于将其多个组合成包装的装置。 该装置包括布置在整料和分隔件的一个端部上的弹性垫片，用于将元件容纳在盒中。
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4.发明授权
公开(公告)号：US4744967A
公开(公告)日：1988-05-17
申请号：US4407
申请日：1987-01-20
CPC分类号： B01D53/8637 , F23J15/006 , F23J2215/20 , F23J2217/102 , F23J2219/10 , F23J2219/40
摘要： A process is described for the purification of exhaust gases containing oxides of nitrogen and sulfur obtained from combustion installations and industrial production processes by selective catalytic reduction of the nitric oxides with ammonia, subsequent catalytic oxidation of sulfur dioxide with oxygen and conversion into sulfuric acid of the sulfur trioxide obtained.
摘要翻译： 描述了一种用于净化由燃烧装置和工业生产方法获得的含有氮和硫的氧化物的废气的方法，所述废气通过用氨选择性催化还原一氧化氮，随后用氧气二氧化硫的催化氧化并转化为硫酸 获得三氧化硫。
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公开(公告)号：US4859428A
公开(公告)日：1989-08-22
申请号：US7884
申请日：1987-01-28
CPC分类号： F01N3/2857 , F01N3/2875 , F01N2350/06
摘要： A device for the support of ceramic catalyst monoliths especially of square cross section as well as for the combination of several of such monoliths into one package. It is formed of an elastic gasket attached on one or both monolith ends and a metal frame attached on the gasket under pressure. The frame has recesses on two adjacent lateral surfaces, and at the two opposite lateral surfaces it has projections which can engage interlockingly into the recesses of adjacent frames.
摘要翻译： 用于支撑特别是方形横截面的陶瓷催化剂整料的装置，以及用于将一些这种整料组合成一个包装的装置。 它由一个或两个整体端部附接的弹性垫圈和在压力下连接在垫圈上的金属框架形成。 框架在两个相邻的侧表面上具有凹槽，并且在两个相对的侧表面处具有突起，该凸起可互锁地接合到相邻框架的凹部中。
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