吸附脱附+冷凝回收系统

　　Adsorption desorption+condensation recovery system

　　冷凝回收法是VOC治理的简单而有效的治理方式。它利用的具有在不同温度下不同的饱和蒸气压的材料的特性，并且所述冷凝器降低的有机物质的沸点以下的VOC，使有机物凝结成液滴，然后重力下降到存储下面的水箱冷凝区。从而分离和回收。常用的冷却介质主要是冷水、冷冻盐水和液氨。

　　The condensation recovery method is a simple and effective way to treat VOCs. It utilizes the characteristics of materials with different saturated vapor pressures at different temperatures, and the condenser reduces VOCs below the boiling point of organic matter, causing the organic matter to condense into droplets and then fall by gravity to the condensation zone of the water tank below the storage. Thus separating and recycling. The commonly used cooling media are cold water, frozen saltwater, and liquid ammonia.

　　在实际应用中，缩合方法通常与通过冷凝压缩、吸附、吸收，通过吸收或吸附挥发性有机化合物浓缩并回收有机物质，以实现经济和高恢复的过程相结合。

　　In practical applications, condensation methods are usually combined with the process of condensing, compressing, adsorbing, and absorbing volatile organic compounds to concentrate and recover organic substances, in order to achieve economic and high recovery.

　　吸附脱附冷凝回收工艺流程

　　Adsorption desorption condensation recovery process flow

　　工艺路线:

　　Process route:

　　有机废气通过收集后首先进入二级碱洗塔+水洗塔将废气中的残余的微量溴素捕集下来，经过水洗的废气湿度大，经过除雾器将废气和液态水进一步分离，最后再进入活性炭吸附箱，有机挥发气体被活性炭吸附后，废气得到净化达标排放:待活性炭吸附饱和后，启动蒸汽脱附系统，对箱体通入高温蒸汽(≥110℃)，对活性炭进行脱附，脱附后的废气通过冷凝器后，冷凝液所含的化学物质及其他有机物收集后转运至业主精馏釜进行分离，脱附后的活性炭在吹干风机的作用下，60min后活性炭便可恢复吸附性能，从而达到彻底处理废气并节约能源的最终目的。

　　After collection, organic waste gas first enters the secondary alkali washing tower and water washing tower to capture residual trace amounts of bromine in the waste gas. The waste gas after water washing has high humidity and is further separated from liquid water by a demister. Finally, it enters the activated carbon adsorption box, where organic volatile gases are adsorbed by activated carbon and purified to meet emission standards. After the activated carbon adsorption is saturated, the steam desorption system is started, and high-temperature steam (≥ 110 ℃) is introduced into the box to desorb the activated carbon. The desorbed waste gas passes through the condenser, and the chemical substances and other organic substances contained in the condensate are collected and transferred to the owner's distillation kettle for separation. The desorbed activated carbon is dried by the action of the blowing fan. After 60 minutes, activated carbon can restore its adsorption performance, achieving the ultimate goal of thoroughly treating exhaust gas and saving energy.

　　吸附脱附冷凝回收工作原理

　　Working principle of adsorption desorption condensation recovery

　　蒸汽脱附工艺具有相变热高，脱附完全，易冷凝的优点,可实现有机溶剂和水的自动有效分离；有低浓度、大风量的混合成分的有机废气，不具备回收的价值。如采用普通的蜂窝活性炭吸附，吸附容量低，频繁脱附存在较大安全风险，同时产生大量活性炭危废:如采用直接燃烧的方法，需要大量的燃料来加热废气。活性炭吸附浓缩-蒸汽脱附废气处理装置，采用优质颗粒活性炭作为吸附材料，将尾气中的有机成分吸附后达标排放。脱附是在蒸汽的驱动下使吸附床与高温热蒸汽组成一个脱附系统。先将热蒸汽引入待脱附的吸附床，使活性炭所吸附的有机物脱附下来后引入冷凝器设备，在冷凝器中冷凝成液滴后排出，以消除气流中的有机物，保证有机物高效净化。

　　The steam desorption process has the advantages of high phase change heat, complete desorption, and easy condensation, which can achieve automatic and effective separation of organic solvents and water; Organic waste gas with low concentration and high air volume mixed components does not have the value of recycling. If ordinary honeycomb activated carbon is used for adsorption, the adsorption capacity is low, and frequent desorption poses significant safety risks, while generating a large amount of hazardous activated carbon waste. If direct combustion is used, a large amount of fuel is required to heat the exhaust gas. The activated carbon adsorption concentration steam desorption exhaust gas treatment device uses high-quality granular activated carbon as the adsorbent material to adsorb organic components in the exhaust gas and meet emission standards. Desorption is the process of creating a desorption system between an adsorption bed and high-temperature hot steam driven by steam. First, introduce the hot steam into the adsorption bed to be desorbed, so that the organic matter adsorbed by the activated carbon can be desorbed and then introduced into the condenser equipment. In the condenser, it condenses into liquid droplets and is discharged to eliminate the organic matter in the airflow and ensure efficient purification of organic matter.

　　>>吸附脱附冷凝回收的优势

　　>>Advantages of adsorption desorption condensation recovery

　　1. 不受气液比的影响，回收率稳定，可在常压下直接浓缩；

　　1. Not affected by gas-liquid ratio, stable recovery rate, and can be directly concentrated under normal pressure;

　　2. 当浓度高于≥1%时，回收率可达到98%以上；

　　When the concentration is higher than or equal to 1%, the recovery rate can reach over 98%;

　　3. 主要用于处理具有可回收价值的高浓度、单组分VOC；

　　3. Mainly used for processing high concentration, single component VOCs with recyclable value;

　　4. 有机液体可直接回收，无二次污染；

　　4. Organic liquids can be directly recovered without secondary pollution;

　　5. 脱附效率高，脱附速率快，能耗低。>>吸附材料选择

　　5. High desorption efficiency, fast desorption rate, and low energy consumption. >>Selection of adsorbent materials

　　吸附器填装活性炭为优质颗粒活性炭，气流分布均匀、稳定，吸附性能好，灰分低；保蓝活性炭吸附装置采用优质颗粒活性炭作为吸附填料，活性炭是一种主要含碳材料制成的外观呈黑色的的一类微晶质碳素材料，是一种新型、高效吸附剂。活性炭的工作原理是利用微孔活性物质对废气分子或分子团的吸附力。当工业废气通过吸附介质时，其中的分子被“阻截”吸附下来，从而使废气得到净化处理。

　　The adsorber is filled with high-quality granular activated carbon, with uniform and stable airflow distribution, good adsorption performance, and low ash content; The Baolan activated carbon adsorption device uses high-quality granular activated carbon as the adsorption filler. Activated carbon is a type of microcrystalline carbon material with a black appearance, mainly made of carbon containing materials. It is a new and efficient adsorbent. The working principle of activated carbon is to utilize the adsorption force of microporous active substances on exhaust gas molecules or molecular clusters. When industrial waste gas passes through an adsorption medium, its molecules are "intercepted" and adsorbed, thereby purifying the waste gas.

　　活性炭

　　activated charcoal

　　吸附脱附冷凝回收适用领域

　　Applicable fields of adsorption desorption condensation recovery

　　● 化工、石油制药、涂装、印刷等行业中、低浓度有机废气，废气中有机成分单一且有回收价值有机溶剂回收，可回收有机物：甲醇、乙醇、乙二醇、异丙醇、乙二醇单甲醚、乙二醇单乙醚、丙酮、丁酮（甲乙酮）、醋酸酯（如乙酸乙酯、乙酸丁酯）、轻烃类、油气回收等。

　　Low concentration organic waste gas in industries such as chemical, petroleum and pharmaceutical, coating, printing, etc. The organic components in the waste gas are single and have recycling value. Organic solvents can be recovered, including methanol, ethanol, ethylene glycol, isopropanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, acetone, butanone (methyl ethyl ketone), acetate (such as ethyl acetate, butyl acetate), light hydrocarbons, oil and gas recovery, etc.

　　应用领域：喷漆行业/印刷行业/化工行业/制药行业

　　Application areas: Spray painting industry/printing industry/chemical industry/pharmaceutical industry

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