一、针对低浓度大风量、无回收价值的VOCs废气技术

1、 VOCs waste gas technology for low concentration, high air volume, and no recycling value

1.活性炭吸附技术

1. Activated carbon adsorption technology

处理原理：利用活性炭多孔结构，对污染物（VOCs）进行吸附，从而达到去除的目的。

Treatment principle: Utilize the porous structure of activated carbon to adsorb pollutants (VOCs), thereby achieving the purpose of removal.

适用范围：低浓度有机废气的净化。

Scope of application: Purification of low concentration organic waste gas.

不适用范围：高浓度、高温的有机废气。

Not applicable to high concentration and high temperature organic waste gases.

因为受吸附容量的限制，吸附材料需定期更换 、后期运行费用昂贵，且废活性炭属于危废。

Due to the limitation of adsorption capacity, the adsorption material needs to be replaced regularly, and the later operation cost is expensive, and waste activated carbon belongs to hazardous waste.

2.活性炭吸附+催化燃烧技术

2. Activated carbon adsorption+catalytic combustion technology

处理原理：含VOCs废气首先通过活性炭吸附、浓缩，净化后的废气通过烟囱排放，当活性炭接近吸附饱和时，对吸附饱和的活性炭模块加热脱附，加热脱附后的高浓度有机废气经换热器预热进入催化氧化炉进行分解；在催化氧化炉内被加热到300～400℃的有机废气（VOCs）在贵金属催化剂的作用下发生无焰燃烧，VOCs被氧化分解成二氧化碳和水，经烟囱排放到空气中。

Treatment principle: The waste gas containing VOCs is first adsorbed and concentrated by activated carbon, and the purified waste gas is discharged through the chimney. When the activated carbon is close to adsorption saturation, the activated carbon module with adsorption saturation is heated and desorbed. The high concentration organic waste gas after heating and desorbing is preheated by a heat exchanger and enters the catalytic oxidation furnace for decomposition; Organic waste gases (VOCs) heated to 300-400 ℃ in a catalytic oxidation furnace undergo flameless combustion under the action of precious metal catalysts. VOCs are oxidized and decomposed into carbon dioxide and water, which are discharged into the air through chimneys.

适用范围：适用于大风量低浓度有机废气的净化，但活性炭和催化剂需定期更换。

Scope of application: Suitable for the purification of high air volume and low concentration organic waste gas, but the activated carbon and catalyst need to be replaced regularly.

不适用范围：不适用于处理含硫、卤素、重金属、油雾、以及高沸点、易聚合化合物、含颗粒物状的废气处理。

Not applicable: Not applicable to the treatment of sulfur, halogens, heavy metals, oil mist, as well as high boiling point, easily polymerizable compounds, and waste gas containing particulate matter.

3.沸石转轮吸附+(蓄热式)催化燃烧技术

3. Zeolite wheel adsorption+(regenerative) catalytic combustion technology

处理原理：含VOCs废气进入转轮，沸石吸附浓缩其中VOCs成分，洁净气体达标排放。已吸附VOCs的沸石模块经高温脱附，脱附后的高浓度有机废气经换热器预热进入催化氧化炉进行分解；在催化氧化炉内被加热到300～400℃的有机废气（VOCs）在贵金属催化剂的作用下发生无焰燃烧，VOCs被氧化分解成CO?和H?O经烟囱排放到空气中，脱附后的沸石模块恢复吸附能力并转至吸附区。

Treatment principle: Waste gas containing VOCs enters the runner, and zeolite adsorbs and concentrates the VOCs components, resulting in clean gas emissions that meet standards. The zeolite module that has adsorbed VOCs undergoes high-temperature desorption, and the high concentration organic waste gas after desorption is preheated by a heat exchanger and enters the catalytic oxidation furnace for decomposition; Organic waste gases (VOCs) heated to 300-400 ℃ in a catalytic oxidation furnace undergo flameless combustion under the action of precious metal catalysts, and VOCs are oxidized and decomposed into CO? And H? O is discharged into the air through the chimney, and the adsorbed zeolite module recovers its adsorption capacity and transfers to the adsorption zone.

适用范围：适用于大风量低浓度废气，去除效率较高，处理含高沸点或易聚合化合物时，转轮需定期处理和维护。

Scope of application: Suitable for high air volume and low concentration exhaust gas, with high removal efficiency. When dealing with compounds with high boiling points or easy polymerization, the runner needs to be regularly treated and maintained.

不适用范围：不适用于低沸点不易吸附、高沸点不易脱附和酸碱性有机废气的净化。

Not applicable: Not applicable to the purification of low boiling point, high boiling point, and acid-base organic waste gases that are not easily adsorbed or desorbed.