Institute of Research and Innovation (Tokyo JPX 03)
인용정보
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30인용 특허 :
5
초록▼
A method for removing nitrogen oxides from exhaust gases containing oxygen and moisture, which comprises bringing the exhaust gas into contact with hydrogenated zeolite catalysts or hydrogenated zeolite catalysts impregnated with one or more kinds of metals selected from the group consisting of copp
A method for removing nitrogen oxides from exhaust gases containing oxygen and moisture, which comprises bringing the exhaust gas into contact with hydrogenated zeolite catalysts or hydrogenated zeolite catalysts impregnated with one or more kinds of metals selected from the group consisting of copper, zinc, vanadium, chromium, manganese, iron, cobalt, nickel, rhodium, palladium, platinum, and molybdenum, in the presence of organic compounds. The zeolite should be a zeolite having a silica/alumina ratio of 5 or above. The zeolite may be any one of zeolite of Y type, zeolite of L type, zeolite of offretite-erionite mixed crystal type, zeolite of ferrierite type, zeolite of mordenite type, zeolite of clinoptilolite type, and zeolite of ZSM-5 type.
대표청구항▼
A method for removing nitrogen oxides from exhaust gas containing oxygen and moisture, comprising the step of bringing the exhaust gas into contact with a hydrogenated zeolite catalyst selected from the group consisting of hydrogenated synthetic zeolites, hydrogenated natural zeolites, hydrogenated
A method for removing nitrogen oxides from exhaust gas containing oxygen and moisture, comprising the step of bringing the exhaust gas into contact with a hydrogenated zeolite catalyst selected from the group consisting of hydrogenated synthetic zeolites, hydrogenated natural zeolites, hydrogenated synthetic zeolites impregnated with one or more metals selected from the group consisting of copper, zinc, vanadium, chromium, manganese, iron, cobalt, nickel, rhodium, palladium, platinum and molybdenum, and hydrogenated natural zeolites impregnated with one or more metals selected from the group consisting of copper, zinc, vanadium, chromium, manganese, iron, cobalt, nickel, rhodium, palladium, platinum, and molybdenum, in the presence of organic compounds as a reducing agent selected from the group consisting of hydrocarbons, alcohols, ketones, or ether, at a temperature sufficient to cause reaction between said hydrogenated zeolite catalyst and said nitrogen oxides.
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이 특허에 인용된 특허 (5)
Brown Stanley M. (Scotch Plains NJ) Woltermann Gerald M. (North Plainfield NJ), Conversion of nitrogen oxides.
Hall W. Keith ; Feng Xiaobing, Catalyst for purifying the exhaust gas from the combustion in an engine or gas turbines and method of making and using the same.
Kharas Karl C. C. ; Robota Heinz J., Catalytic converter having a catalyst with noble metal on molecular sieve crystal surface and method of treating diesel.
Pieterse, Johannis Alouisius Zacharias; Van Den Brink, Rudolf Willem, Method for the decomposition of NO, catalyst therefor and preparation of this catalyst.
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