吸收塔也可用于溶剂回收。
喷淋吸收塔、湿法尾气净化塔的优点：
可用于废气浓度高的场合（大于50g/m3）
吸收剂容易获得
能适应废气流量、浓度的波动
能吸收可聚合的有机化合物
不易着火、不需要特殊的安全措施
如已有废水处置装置，则用水作为吸收剂更为方便。
1.塑料造粒光氢离子净化处理设备
该设备核心中的纳米光催化触媒材料（GC-100）是一种吸收光能后，能在其表面产生催化反应的物质，其功能类似于植物的叶绿素。当特定纳米波长的紫外光照射光催化触媒材料（GC-100）时，其表面发生光催化氧化还原反应。光催化触媒材料（GC-100）吸收光子后在其表面产生电子（E—）和空穴（H+），将吸收的光能转化成化学能，即具有光催化作用。当光催化触媒材料（GC-100）与空气中的水接触时，表面就吸附H2O、O2、OH—，H2O、 OH—被空穴（H+）所氧化，O2被电子（E—）还原，反应室如下：H2O+ H+ → OH. + H+ O2+ E— → O2-OH—基团的氧化能力较强，使有机物氧化，***终分解为水和CO2。
2．塑料造粒高活化生物净化塔过滤净化装置
采用生物菌，生物菌性能、净化效率、减少二次污染、达到***环保标准，一个重要原因在于环境保护的综合考虑。
3．塑料造粒大型等离子烟气处理设备
在外加电场的作用下，介质放电产生大量携能电子轰击污染物分子，使其电离、解离和激发，然后便引发了一系列复杂的物理、化学反应，使复杂大分子污染物转变为简单小分子安全物质，或使用******物质转变成***无害或低毒低害的物质，从而使污染物得以降解去除。因其电离后产生的电子平均能量在10ev，适当控制反应条件可以实现一般情况下难以实现或速度很慢的化学反应变得十分快速。
优势：
1. 具有一次性净化效率高，能同时净化多种污染物;
2. 防火性能采用开关，电源，电路三重自动保护，的净化功能，无须专人看管;
3. 设备***少，运行成本低;
4. 安全稳定，维护方便，使用寿命长;
5. 净化效率高，无二次污染。
About activated carbon adsorption box, activated carbon adsorption purification device:
Activated carbon adsorption and purification device is usually used for deep purification of organic waste gas or high price organic solvent recovery. Activated carbon with large surface area and high adsorption capacity was used as adsorbent to adsorb and purify organic waste gas and clean clean air. When the activated carbon reaches the saturated critical state, the activated carbon is desorbed and regenerated by steam or inert gas, and the regenerated activated carbon continues to be used, and the dissolved organic waste gas is actually a concentrated organic waste gas flow. If it has the value of recovery, it can be further recovered and treated. If there is no recovery value, it is generally used heat. Oxidation (RTO) or catalytic oxidation (RTO, photo oxidation catalysis, etc.) for final purification.
If it is an organic waste gas discharged intermittently, a activated carbon adsorption bed is generally used. If it is a continuous emission of organic waste gas, two activated carbon adsorption beds should be installed, alternately adsorbing and desorbing.
For the organic waste gas which is higher than 40 C, the condensers are generally increased in the system, and then the high temperature organic waste gas flow is cooled and dried first and then adsorbed and purify.
Application of activated carbon adsorption purification device:
It is widely used in all kinds of industrial organic waste gas treatment, such as printing organic waste gas treatment, spray paint organic waste gas treatment, paper mill organic waste gas exhaust treatment, coating processing waste gas treatment, various electronic factory exhaust purification treatment, semiconductor factory exhaust purification treatment, lithium battery plant waste gas purification treatment, and large-scale research. The exhaust purge treatment of the ventilator and so on.
The organic waste gases can be purified: benzene, alcohols, ketones, esters, gasoline and other organic waste gases.
It can be used for purification of organic waste gas with low concentration and large air volume, and can also be used for purification of organic waste gas with high concentration and intermittent discharge.
On the spray absorption tower and the wet tail gas purification tower:
Also called spray purification tower, chemical washing tower. The main principle is to use different chemical absorbents according to the composition of the odor, as the contact between the washing spray solution and the odor molecules in the gas, to transfer the odor components in the gas phase to the liquid phase, and to remove the odorous substances from the chemical reagents and the odor components and the oxidation or other chemical reacti***. A good method for treating waste gas in a chemical plant.
The commonly used absorbents are water, oil (hydrocarbon), ethyl two alcohol ether, hypochlorite solution, alkaline solution, acid, ammonia, sulfite solution, high potassium acid solution, peroxide acid, etc.
The chemical absorption liquid sprays down from the top of the tower, and the exhaust gas flows upwa***. The odor and the absorption liquid are fully contacted, and the reaction is removed. Absorption liquid and exhaust gas flow ratio (liquid / gas ratio) is generally 1:3 L/m3, packing height is generally 2~5 meters, gas tower flow rate is generally 0.5~1 M / sec. The packed column with good operation can achieve more than 90% deodorizing effect.
Schematic diagram of spray absorption tower and wet tail gas purification tower.
0091 spray absorber process flow g
Application of spray absorption tower and wet tail gas purification tower:
The chemical washing methods can be used to treat the odor substances including organic sulfur compounds (thiols, thioether), nitrogenous compounds (amines), organic acids, phenol, cresol, acetaldehyde, alcohols, organic waste gas containing chlorinated hydrocarb***, oxygen containing hydrocarb***, halides and so on.
It is often used in the purification of inorganic pollutants, such as HCl, SO2, NOx, NH3 and other waste gases.
It is suitable for exhaust purification, organic waste gas treatment and VOC purification in sludge treatment, food, petroleum, chemical, pharmaceutical, textile, coating and other industries.