化工廠廢氣的產生源及化工廠廢氣處理方法

　　Sources of Chemical Plant Waste Gas Generation and Treatment Methods for Chemical Plant Waste Gas

　　廢氣凈化也叫廢氣處理，主要是指針對工業生產產生的工業廢氣諸如粉塵顆粒物、煙氣煙塵、異味氣體、有毒有害氣體進行治理的工作。常見的廢氣凈化有煙塵廢氣處理、車間粉塵廢氣處理、有機廢氣處理、廢氣異味處理、酸堿廢氣處理、化工廠廢氣處理等等。

　　Exhaust gas purification, also known as exhaust gas treatment, mainly refers to the treatment of industrial waste gases such as dust particles, smoke and dust, odorous gases, and toxic and harmful gases generated in industrial production. Common exhaust gas purification methods include smoke and dust exhaust gas treatment, workshop dust exhaust gas treatment, organic exhaust gas treatment, exhaust gas odor treatment, acid-base exhaust gas treatment, chemical plant exhaust gas treatment, and so on.

　　化工廠通常會排放哪個廢氣和有毒氣體？

　　Which exhaust gases and toxic gases are usually emitted by chemical plants?

　　化工廠排放的廢氣主要以化工原料組分的特征因子、酸性氣體（TRS還原性硫化物）、惡臭、苯系物、HCL、氨氣、硫化氫、氮氧化物等。

　　The exhaust gas emitted by chemical plants mainly consists of characteristic factors of chemical raw material components, acidic gases (TRS reducing sulfides), odors, benzene derivatives HCL、 Ammonia, hydrogen sulfide, nitrogen oxides, etc.

　　簡單介紹不同化工廠廢氣處理方法

　　Briefly introduce different methods of waste gas treatment in chemical plants

　　酸性氣體（TRS還原性硫化物具有酸性、可燃性）----采用堿液洗滌，催化燃燒、高煙囪排放的方式

　　Acidic gas (TRS reducing sulfide has acidity and flammability) - washed with alkaline solution, catalyzed combustion, and high chimney emission method

　　惡臭氣體（氨、硫化氫、甲硫醇、二甲硫醇、）----活性炭吸附法

　　Odorous gases (ammonia, hydrogen sulfide, methyl mercaptan, dimethyl mercaptan) - activated carbon adsorption method

　　揮發性有機物（苯、甲苯、二甲苯、非甲烷總烴）----燃燒、催化燃燒、吸附、吸收、冷凝法

　　Volatile organic compounds (benzene, toluene, xylene, non methane total hydrocarbons) - combustion, catalytic combustion, adsorption, absorption, condensation methods

　　煙塵－布袋除塵器或者靜電除塵法

　　Smoke and dust - bag filter or electrostatic precipitator method

　　具體采用哪種處理方法要根據化工廠排放的具體污染物類型和濃度確定，高濃度地符合回收利用條件的要盡可能地回收。

　　The specific treatment method to be used should be determined based on the specific type and concentration of pollutants emitted by the chemical plant, and those with high concentrations that meet the recycling conditions should be recycled as much as possible.

　　對于無組織排放的廢氣可以采用加裝集氣罩負壓引風收集后集中處理燃燒或者活性炭吸附等

　　For unorganized emissions of exhaust gas, the installation of a gas collection hood and negative pressure induced draft collection can be used for centralized treatment, combustion, or activated carbon adsorption

　　工業廢氣處理的幾種方法介紹

　　Introduction to Several Methods for Industrial Waste Gas Treatment

　　1、熱力燃燒法：在高溫下惡臭物質與燃料氣充分混合，實現完全燃燒

　　1. Thermal combustion method: fully mixing odorous substances with fuel gas at high temperatures to achieve complete combustion

　　適用于處理高濃度、小氣量的可燃性氣體 凈化效率高，惡臭物質被氧化分解 設備易腐蝕，消耗燃料，處理成本高，易形成二次污染

　　Suitable for processing high concentration and low gas volume combustible gases with high purification efficiency. Odorous substances are easily corroded by oxidation and decomposition equipment, consume fuel, have high processing costs, and are prone to secondary pollution

　　4、催化燃燒法

　　4. Catalytic combustion method

　　5、水吸收法：利用臭氣中某些物質易溶于水的特性，使臭氣成分直接與水接觸，從而溶解于水達到脫臭目的 工藝簡單，管理方便，設備運轉費用低 產生二次污染，需對洗滌液進行處理；凈化效率低，應與其他技術聯合使用，對硫醇，脂肪酸等處理效果差

　　5. Water absorption method: utilizing the characteristic of certain substances in the odor that are easily soluble in water, the odor components come into direct contact with water and dissolve in water to achieve deodorization. The process is simple, easy to manage, and the equipment operation cost is low, resulting in secondary pollution. Therefore, the washing solution needs to be treated; Low purification efficiency, should be used in conjunction with other technologies, and has poor treatment effects on thiols, fatty acids, etc

　　6、藥液吸收法：利用臭氣中某些物質和藥液產生化學反應的特性，去除某些臭氣成分

　　6. Liquid absorption method: utilizing the chemical reaction between certain substances in the odor and the liquid to remove certain odor components

　　適用于處理大氣量、高中濃度的臭氣 能夠有針對性處理某些臭氣成分，工藝較成熟 凈化效率不高，消耗吸收劑，易形成而二次污染

　　Suitable for processing large volumes and high concentration odors, it can selectively treat certain odor components. The process is relatively mature, with low purification efficiency, consumes absorbents, and is prone to secondary pollution

　　7、吸附法：利用吸附劑的吸附功能使惡臭物質由氣相轉移至固相

　　7. Adsorption method: using the adsorption function of adsorbents to transfer odorous substances from the gas phase to the solid phase

　　適用于處理低濃度，高凈化要求的惡臭氣體 凈化效率很高，可以處理多組分惡臭氣體 吸附劑費用貴，再生較困難，要求待處理的惡臭氣體有較低的溫度和含塵量

　　Suitable for processing low concentration and high purification requirements of odorous gases, with high purification efficiency and the ability to handle multi-component odorous gases. Adsorbents are expensive and difficult to regenerate, requiring low temperature and dust content of the odorous gases to be treated

　　8、生物濾池式脫臭法：惡臭氣體經過去塵增濕或降溫等預處理工藝后，從濾床底部由下向上穿過由濾料組成的濾床，惡臭氣體由氣相轉移至水—微生物混合相，通過固著于濾料上的微生物代謝作用而被分解掉。

　　8. Biological filter deodorization method: After undergoing pre-treatment processes such as dust removal, humidification, or cooling, the odorous gas passes through a filter bed composed of filter materials from bottom to top. The odorous gas is transferred from the gas phase to the water microorganism mixed phase and decomposed through the metabolic action of microorganisms fixed on the filter material.

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