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有机废气处理设备催化处理流程

来源:http://www.jngdhb.com/   发布时间:2018-07-26 17:18:59
一、有机废气进入催化燃烧装置的气体首要经过预处理,除去粉尘、液滴及有害组分,避免催化床层的堵塞和催化剂的中毒。
First, the gases entering the catalytic combustion device are pretreated first, and the dust, droplets and harmful components are removed, and the clogging of the catalytic bed layer and the poisoning of the catalyst are avoided.
第二、有机废气进行催化床层的气体温度必须要达到所用催化剂的起燃温度,催化反应才能进行。因此对于低于起燃温度的进气,必须进行预热使其达到起燃温度。特别是开车时,对冷时气必须进行预热,因此催化燃烧法最适于连续排气的净化,经开车时对进气预热后,即可利用燃烧尾气的热量预热进口气体。若废气为间歇排放,每次开车均需对进口冷气癸进行预热,预热器的频繁启动,使能耗大大增加。气体的预热方式可以采用电 热线也可以采用烟道气加热,目前应用较多的为电加热。
Second. The temperature of the catalyst bed must be up to the ignition temperature of the catalyst and the catalytic reaction can be carried out. Therefore, the intake temperature below the starting temperature must be pre heated to achieve the ignition temperature. Especially when driving, it is necessary to preheat the cold air, so the catalytic combustion method is most suitable for the purification of continuous exhaust. After preheating the intake air, the inlet gas can be preheated by the heat of the exhaust gas. If the exhaust gas is intermittently discharged, each motor must be pre heated with imported air-cooled declines, and the frequent startup of the preheater will greatly increase the energy consumption. The preheating way of the gas can be heated by the electric hot wire or by the flue gas.
第三、催化燃烧反应放出大量的反应热,因此燃烧尾气温度很高,对这部分热量必须回收。一般首先通过换热器将高温尾气与进口低温气体进行热量交换以减少预热能耗, 剩余热量可采用其他方式进行回收,在生产装置排出的有机废气温度较高的场合,如漆包线、绝缘材料等烘干温度可达300度以上,可以不高置预热器和换热器。 但燃烧尾气的热量仍应回收。
Third, the catalytic combustion reaction releases a lot of reaction heat, so the exhaust gas temperature is very high, and this part of heat must be recovered. The heat exchanger is generally first exchanged with the imported low temperature gas through heat exchanger to reduce the heat consumption of preheating. The remaining heat can be recycled by other ways. The drying temperature of the organic waste gas discharged from the production equipment, such as enamel wire and insulating material, can reach more than 300 degrees, and the preheating can not be high. The device and the heat exchanger. But the heat of the burning tail gas should still be recovered.
光氧催化设备
有机废气处理设备催化燃烧工艺的流程
Catalytic Combustion Process of Organic Waste Gas Treatment Equipment
有机废气处理中催化燃烧工艺流程有分建式与组合式两种。
The process of catalytic combustion of organic waste gas is divided into two types: divided and combined.
在分建式流程中,预热器、换热器、反应器均作为独立设备分别设立,其间用相应的管路连接,一般应用于处理气量较大的场合。
In the construction process, the preheater, heat exchanger, and reactor are respectively set up as independent equipment, which are connected by the corresponding pipeline, and are generally applied to the situation where the gas is large.
组合式流程将预热、换热及反应等部分组合安装在同一设备中,即所谓催化燃烧炉,流程紧凑、占地小,一般用于处理气量较小的场合。我国有这类装置的定型产品,可根据处理气量的大小进行选择。
The combined flow process combines preheating, heat exchange and reaction in the same equipment, that is, the so-called catalytic combustion furnace, which is compact and small, and is generally used to deal with the situation of small gas. In China, the stereotyped products of such devices can be selected according to the volume of processing gas.
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