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催化燃烧装置在日常中的优势和不足

来源:http://www.spormac.net/   发布时间:2019-01-11 16:49:59
1.高温带来的管道、设备很简单损坏;
1. Pipeline and equipment damaged by high temperature are very simple.
2.假如蓄热体结块、寿数不长;
2. If the regenerator is agglomerated and its life is not long;
3.炉内压力变化大,造成热量大量溢出,未能到达实践节能效果;
3. The pressure in the furnace varies greatly, resulting in a large amount of heat overflow, which fails to achieve the practical energy-saving effect.
4.日常保护量、本钱添加。
4. Daily protection and cost added.
实践上每一种废气处理办法都有自己的优势,催化焚烧设备比较适合于排放持续的废气,若间歇性的排放废气,不仅每次预热需要耗能,反响热也无法收回运用,会造成很大的能源糟蹋。对于排出的废气自身温度就较高的场合,如漆包线、绝缘材料、烤漆等烘干排气,温度可达300℃以上,则不用设置预热设备。
In practice, each waste gas treatment method has its own advantages. Catalytic incineration equipment is more suitable for discharging continuous waste gas. If intermittent emissions of waste gas, not only energy consumption is needed for each preheating, but also the reaction heat can not be recovered and used, which will cause great energy waste. For the occasions where the exhaust gas has a higher temperature, such as enameled wire, insulating material, baking paint and so on, the temperature can reach more than 300 C, no preheating equipment is needed.
催化焚烧机设备,本设备运用广泛应用于多方面的工况环境,废气催化焚烧是典型的气—固相催化反响,它借助催化剂降低了反响的活化能,使其在较低的起燃温度200~300℃下进行无焰焚烧,有机物质氧化发生在固体催化剂表面,同时发生CO2和H2O,并放出大量的热量,因其氧化反响温度低,所以大大地抑制了空气中的N2形成高温NOx。而且因为催化剂有选择性催化作用,有或许限制燃料中含氮化合物(RNH)的氧化进程,使其多数形成分子氮(N2)。
光氧催化设备
Catalytic incinerator equipment, this equipment is widely used in various working conditions. Waste gas catalytic incineration is a typical gas-solid catalytic reaction. It reduces the activation energy of the reaction with the help of catalyst, makes it flame-free incineration at a lower ignition temperature of 200-300 degrees C. Organic matter oxidation occurs on the surface of solid catalysts, while CO2 and H2O occur occur, and emits a large amount of heat. Because of its low oxidation reaction temperature, the amount of N2 in the air is greatly inhibited to form high-temperature NO 2. Moreover, because of the selective catalysis of catalysts, the oxidation process of nitrogen compounds (RNH) in fuels may be limited and most of them form molecular nitrogen (N2).
与传统的火焰焚烧相比,催化焚烧有着很大的优势:
Compared with traditional flame incineration, catalytic incineration has great advantages.
(1)起燃温度低,能耗少,焚烧易达安稳,乃至到起燃温度后无需外界传热就能完成氧化反响。
(1) Low ignition temperature, low energy consumption, easy to achieve stable incineration, even after the ignition temperature without external heat transfer can complete the oxidation reaction.
(2)净化效率高,污染物(如NOx及不焚烧产物等)的排放水平较低。
(2) The purification efficiency is high, and the emission level of pollutants (such as NOx and non-incinerated products) is low.
(3)习惯氧浓度规模大,噪音小,无二次污染,且焚烧缓和,工作费用低,操作管理也很方便
(3) Habitual oxygen concentration is large in scale, low in noise, no secondary pollution, and the incineration is moderate, the work cost is low, and the operation and management are also convenient.
催化剂的类型及性能要求
Catalyst Types and Performance Requirements
目前国内外首要研讨的催化剂基本上有两大类:一类为贵金属催化剂,这类催化剂的活性和安稳性好,技能较为成熟,但因为贵金属价格高,资源缺少,所以,未能将其产业化;另一类为非金属催化剂,首要集中在过渡金属氧化物催化剂、复氧化物催化剂(钙钛型复氧化物和尖晶石型复氧化物)的研讨方面。目前,寻找来历丰富、价格低廉、性能适当的非贵金属催化剂,以替代传统的贵金属催化剂用于催化焚烧进程已成为了研讨的一个重要方向。
At present, there are basically two main types of catalysts studied at home and abroad: one is noble metal catalysts, which have good activity and stability and mature skills, but because of the high price of noble metals and lack of resources, they can not be industrialized; the other is non-metallic catalysts, which mainly focus on transition metal oxide catalysts and complex oxide catalysts (perovskite-titanium complex catalysts). Studies on oxides and spinel complex oxides. At present, it has become an important research direction to find non-noble metal catalysts with rich history, low price and appropriate performance to replace traditional noble metal catalysts for catalytic incineration process.
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