再生塑料顆粒廢氣怎么處理
(1) Activated carbon adsorption
有機廢氣中的吸附法主要適用于低濃度、高通量有機廢氣?，F(xiàn)階段，這種有機廢氣的處理方法已經(jīng)相當成熟，能量消耗比較小，但是處理效率卻非常高，而且可以凈化有害有機廢氣。
The adsorption method in organic waste gas is mainly suitable for low concentration and high flux organic waste gas. At present, this kind of organic waste gas treatment method has been quite mature, energy consumption is relatively small, but the treatment efficiency is very high, and can purify harmful organic waste gas.
當碳吸附達到飽和度時，飽和碳床脫吸再生;當水蒸氣加熱到碳層時，蒸氣被吹出，蒸汽混合物與水蒸氣形成，碳吸附床分離在一起，蒸汽混合物與凝汽器冷卻，蒸汽凝結成液體。因涂料中所用的“三苯”與水互不相溶，故可以直接回收。適用于低溫、低濕、排氣量大的場合，如油漆、印刷、粘合劑等。
When the carbon adsorption reaches saturation, the saturated carbon bed is desorbed and regenerated; when the steam is heated to the carbon layer, the steam is blown out, the steam mixture and the steam form, the carbon adsorption bed is separated, the steam mixture and the condenser are cooled, and the steam condenses into liquid. Because the "triphenyl" used in the coating is not miscible with water, it can be recovered directly. It is suitable for low temperature, low humidity and large exhaust volume, such as paint, printing, adhesive, etc.
(2)燃燒法
(2) Combustion method
燃燒包括直接燃燒和催化燃燒。它在國外更加成熟和廣泛使用。適用于處理高濃度、小風量的揮發(fā)性有機物。它要求整個工藝具有高安全性和密封性。在處理大風量低濃度揮發(fā)性有機物時，需要相關的濃縮技術進行預處理。
Combustion includes direct combustion and catalytic combustion. It is more mature and widely used abroad. It is suitable for the treatment of volatile organic compounds with high concentration and small air volume. It requires high safety and sealing of the whole process. When dealing with VOCs with large air volume and low concentration, the relevant concentration technology is needed for pretreatment.
再生塑料顆粒廢氣采用的廢氣處理設備
Waste gas treatment equipment for waste gas of recycled plastic particles
再生塑料顆粒廢氣采用的廢氣處理設備
Waste gas treatment equipment for waste gas of recycled plastic particles
工作原理：高溫燃燒是指在高溫條件下燃燒廢氣中的有機化合物，以產(chǎn)生二氧化碳和水。而催化燃燒則是在其中燃燒時借助催化劑的作用，降低反應所需的溫度，讓廢氣再室溫下即可燃燒生成二氧化碳和水。
Working principle: high temperature combustion refers to the combustion of organic compounds in the exhaust gas under high temperature conditions to produce carbon dioxide and water. Catalytic combustion is to reduce the temperature of reaction with the help of catalyst during combustion, so that the exhaust gas can be burned at room temperature to generate carbon dioxide and water.
(3)光氧催化法
(3) Photocatalytic oxidation
光催化氧化技術是利用特種紫外線波段，將廢氣分子破裂，打斷其分子鏈，同時，通過分解空氣中的水和氧，使其成為具有高活性的臭氧或自由羥基，從而氧化廢氣分子，生成水和二氧化碳。加入催化劑，可提高反應速率和處理廢氣的效率，從而達到凈化廢氣的目的。
Photocatalytic oxidation technology is the use of special ultraviolet band, the exhaust gas molecules will break, break its molecular chain, at the same time, through the decomposition of water and oxygen in the air, make it become highly active ozone or free hydroxyl, so as to oxidize the exhaust gas molecules, generate water and carbon dioxide. The addition of catalyst can improve the reaction rate and the efficiency of waste gas treatment, so as to achieve the purpose of purifying waste gas.
(4)等離子催化法
(4) Plasma catalysis
等離子體催化法適用范圍廣，凈化效率高，特別適用于其他方法難以處理的多個惡臭氣體，如化學工業(yè)、醫(yī)學等行業(yè)。但是一次性投資巨大，且有一定的安全隱患。
The plasma catalytic method has a wide range of applications and high purification efficiency. It is especially suitable for many malodorous gases that are difficult to be treated by other methods, such as chemical industry, medicine and other industries. But the one-time investment is huge, and there are some security risks.
有機廢氣經(jīng)等離子體激發(fā)、解離、活化后，通過高能輻射與稀有金屬氧化物表面廢氣中的氧氣發(fā)生催化氧化反應，轉化為二氧化碳、水等物質。
After being excited, dissociated and activated by plasma, the organic waste gas reacts with the oxygen in the waste gas on the surface of rare metal oxides through high-energy radiation to produce catalytic oxidation reaction, which is converted into carbon dioxide, water and other substances.
(5)UV光解法
(5) UV photolysis
在UV光解廢氣凈化設備中添加納米級別的活性材料，將活性材料給予紫外線照射，活性材料能夠吸收大量的光能，于表面發(fā)生激勵進而生成h+(空穴)與e-(電子)，而空穴與電子所具有的氧化還原能力，可與氧、水發(fā)生反應，迅速生成具有極強氧化能力的·OH(羥基自由基)與·O2-(陰氧離子)。·OH氧化電位相當高，可以氧化有機揮發(fā)性廢氣中的電子，促進無光吸收能力物質的氧化分解。研究發(fā)現(xiàn)，在紫外光的能量以及納米活性催化氧化作用下，有機揮發(fā)性廢氣在短短2-3秒的時間內就能夠被充分分解。
The nano active material is added to the UV photodegradation waste gas purification equipment to irradiate the active material. The active material can absorb a large amount of light energy and generate H + (hole) and E - (electron) on the surface. The redox ability of hole and electron can react with oxygen and water to rapidly generate · Oh (hydroxyl radical) with strong oxidation ability And · O2 - (anion). ·Oh oxidation potential is quite high, which can oxidize the electrons in volatile organic waste gas and promote the oxidative decomposition of non light absorbing substances. It is found that the VOCs can be fully decomposed in just 2-3 seconds under the action of UV energy and nano active catalytic oxidation.