pp聚丙烯吸收塔技術(shù)的分類

Classification of PP absorption tower technology

近年來(lái)，我***醫(yī)藥化工行業(yè)發(fā)展迅速，已成為世界上原料藥和醫(yī)藥中間體的生產(chǎn)******，其產(chǎn)生的廢氣污染物***致分為發(fā)酵尾氣(主要為酸性氣體)、溶劑氣體(統(tǒng)稱為揮發(fā)性有機(jī)物，VolatileOrganicCompounds，以下簡(jiǎn)稱為VOCs)和惡臭氣體。醫(yī)藥生產(chǎn)的廢氣主要***點(diǎn)為排放量***，濃度低，處理成本高。隨著各***對(duì)環(huán)境質(zhì)量要求的不斷提高，對(duì)廢氣排放規(guī)定了嚴(yán)格的排放界限值。

In recent years, China's pharmaceutical and chemical industry has developed rapidly, and has become the world's largest producer of APIs and pharmaceutical intermediates. The waste gas pollutants produced by it can be roughly divided into fermentation tail gas (mainly acid gas), solvent gas (collectively referred to as volatile organic compounds, VOCs, hereinafter referred to as VOCs) and odor gas. The main characteristics of waste gas from pharmaceutical production are large emission, low concentration and high treatment cost. With the continuous improvement of environmental quality requirements in various countries, strict emission limits have been set for exhaust emissions.

藥廠廢氣主要是乙醇，屬于VOCs，由于乙醇中的碳?xì)浠衔?，?huì)在陽(yáng)光(紫外光)作用下發(fā)生光化學(xué)反應(yīng)生成二次污染物，形成煙霧污染現(xiàn)象。***量的VOCs氣體排放會(huì)對(duì)環(huán)境及人群都會(huì)產(chǎn)生不***影響。為此   廢氣凈化塔廠家對(duì)廢氣進(jìn)行凈化處理，消除光化學(xué)煙霧的隱患后才可排放。

The waste gas of pharmaceutical plants is mainly ethanol, which belongs to VOCs. Due to the hydrocarbons in ethanol, photochemical reaction will occur under the action of sunlight (UV) to generate secondary pollutants, which will form smoke pollution. A large number of VOCs emissions will have adverse effects on the environment and people. For this reason, the manufacturer of the waste gas purification tower should purify the waste gas and eliminate the hidden dangers of photochemical smoke before discharging.

pp聚丙烯吸收塔技術(shù)的分類

Classification of PP absorption tower technology

隨著時(shí)代和科技的發(fā)展，廢氣處理工藝也經(jīng)歷著不斷發(fā)展的過程。目前有機(jī)廢氣的凈化方法，從初采用的水洗法，逐步發(fā)展出一系列的方法并且已在工業(yè)生產(chǎn)中獲得成功應(yīng)用。按其工作原理，酸霧凈化塔廠家把它分為物理、化學(xué)、生物等凈化方法，即：

With the development of the times and science and technology, waste gas treatment technology is also experiencing a continuous development process. At present, the purification method of organic waste gas, from the initial water washing method, has gradually developed a series of methods and has been successfully applied in industrial production. According to its working principle, the acid mist purification tower manufacturer divides it into physical, chemical and biological purification methods, namely:

(1)熱力學(xué)方法

(1) thermodynamic method

例如冷凝、吸收、吸附和膜分離等(吸附和吸收可以是化學(xué)或物理的)。

For example, condensation, absorption, adsorption and membrane separation (adsorption and absorption can be chemical or physical).

(2)化學(xué)方法

(2) chemical methods

例如燃燒法，即氧化法(直接燃燒、熱力燃燒、催化燃燒、蓄熱式熱力燃燒)

For example, combustion, i.e. oxidation (direct combustion, thermal combustion, catalytic combustion, regenerative thermal combustion)

(3)生化方法(也稱生物降解法或生物催化法)

(3) biochemical method (also known as biodegradation method or biocatalysis method)

例如：生物過濾、生化洗滌和生化膜分離等。

For example: biological filtration, biochemical washing and biochemical membrane separation.

環(huán)保、經(jīng)濟(jì)而論，如果VOCs的價(jià)值較高，而且有可能回收，則應(yīng)盡可能將其回收在利用，因此從這意義上講，有機(jī)廢氣的凈化方法也可分為：

In terms of environmental protection and economy, VOCs should be recycled as much as possible if its value is high and it is possible to recycle. Therefore, the purification methods of organic waste gas can also be divided into:

(1)回收法

(1) recovery method

例如吸附分離法，冷凝法和膜分離法等。

For example, adsorption separation, condensation and membrane separation.

(2)轉(zhuǎn)化法(又稱破壞法)

(2) transformation method (also known as destruction method)

將VOCs轉(zhuǎn)化為無(wú)害物質(zhì)，例如燃燒法和生化法。

VOCs are converted into harmless substances, such as combustion and biochemical methods.