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光氧催化剂的作用!

来源:http://www.educneves.com/   发布时间:2019-04-03 15:12:26
经过任何化工消费在操作时都要运用到各种各样的催化剂来进步工作效率,关于光氧催化设备来说更是如此,设备之所以能处置洁净多品种型的废气,和其中所加的不同品种的催化剂有很大的关系。
  All kinds of catalysts are used in the operation of any chemical consumption to improve work efficiency, especially in the photo-oxygen catalytic equipment. The reason why the equipment can deal with clean and multi-type waste gases is closely related to the different kinds of catalysts added.
  光氧催化催化剂通常是由催化活性资料和催化载体构成。
  Photooxygenation catalysts are usually composed of catalytic activity data and catalytic support.
  1、催化活性资料普通是金属或金属氧化物。其中贵重金属催化剂主要有铂、钯和钌等,普通金属催化剂主要有铜、铬、镍、钒、锰、铁、钴等金属及氧化物。
  1. Catalytic activity data are usually metal or metal oxides. Among them, precious metal catalysts mainly include platinum, palladium and ruthenium, and common metal catalysts mainly include copper, chromium, nickel, vanadium, manganese, iron, cobalt and other metals and oxides.
  2、光氧催化的催化载体是多孔资料,主要作用是使活性资料具有大的体外表积。分为金属载体、陶瓷载体和炭纤维载体。
  2. The photocatalytic support for photocatalysis is porous data, and its main function is to make the active data have large in vitro surface area. It is divided into metal carrier, ceramic carrier and carbon fiber carrier.
  (1)金属载体普通是以镍或镍铬合金为载体做成的带、片、丸、丝等外形,经过 “电镀”或 “化学镀”(即溶液浸渍)将铂、钯镀在这些载体上,并制成便于装配、拆卸的模屉。
  (1) Metal carriers are usually made of nickel or nickel-chromium alloy as carriers with strips, sheets, pills, wires and other shapes. Platinum and palladium are plated on these carriers by "electroplating" or "electroless plating" (i.e. solution impregnation), and they are made into drawers which are easy to assemble and disassemble.
光氧催化设备
  (2)以陶瓷为载体的催化剂,普通是以硅—铝氧化物为载体,其构造有片粒状和蜂窝状两种。普通在陶瓷构造上涂敷一层α-氧铝薄层,把活性的铂、钯等金属催化剂以微晶状态堆积或分散在多孔的氧化铝薄层中,并制成便于装配、拆卸的模屉。
  (2) Catalysts supported on ceramics are usually supported on silica-alumina oxides, which are composed of flake-like and honeycomb-like structures. A thin layer of alpha-aluminium oxide is usually coated on the ceramic structure. Active metal catalysts such as platinum and palladium are deposited in microcrystalline state or dispersed in the porous alumina thin layer, and the die drawer is made for easy assembly and disassembly.
  (3)炭纤维载体可制造成线状、毡状、网状等外形,在载体上涂敷催化活性资料,制成便于装配、拆卸的模屉。
  (3) Carbon fiber carriers can be made into linear, felted and reticulated shapes. Catalytic activity data are coated on the carriers to make drawers which are easy to assemble and disassemble.
  光氧催化设备的正常工作离不开催化剂的支持,那么其内部添加的催化剂通常分为几种不同类型来对付不同性质的废气处置,所以我们在实践运用时要依据相应的废气性质选择适宜的催化剂类型才能够有效进步工作效率。
  The normal operation of photocatalytic equipment can not be separated from the support of catalysts, so the catalysts added in it are usually divided into several different types to deal with different types of waste gas disposal, so we should choose the appropriate type of catalysts according to the corresponding nature of waste gas in practice to effectively improve work efficiency.
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