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ASEAN Fodi (Wuming) NMP equipment recycling system

NMP Tower Series

ASEAN Fodi (Wuming) NMP equipment recycling system

ASEAN Fodi (Wuming) NMP equipment recycling system

NMP Equipment Recycling System

Principle of absorption tower: Absorption tower makes use of the characteristics that NMP is miscible with water in any proportion and has high water solubility to treat NMP emission. The water absorption method can almost completely absorb NMP in exhaust gas.

Principle of rotor adsorption: VOCs molecular sieve rotor can adsorb large gas molecules like NMP at a specific temperature and desorption and regeneration can be achieved with high-temperature gas in specific areas of rotor, which can achieve recycling.

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    Project: ASEAN Fodi (Wuming) NMP equipment recycling system (Production order No. : PJ23021709.PJ23052708)
    Customer demand parameter Equipment parameter
    Air volume: 220000m³/h Equipment type Treated air volume Equipment size Interior material Tower material Tail gas emission concentration
    Production line (positive and negative) : 2 double layer coater diameter Altitude
    NMP liquid concentration: ≥90% PJNMP22W 220000m³/h φ1600 12800 Aluminium sheet Stainless steel 20mg/m³
    Heat transfer efficiency: ≥85%
    NMP gas exhaust index: ≤20mg/m³
    Floor area: 360㎡
    Project features: Heat recovery + condensation freezing + water absorption tower.
    Project features: large air volume automatic NMP recovery processing, heat recovery, condensation freezing, water tower absorption, F8 filtration, auxiliary pipeline system, improve the return air temperature, high efficiency and energy saving, and effectively balance the return air humidity, return air concentration, return air impurities and high concentration NMP liquid recovery.

    Condensation Unit

    The condensation unit is designed to condense the gaseous NMP present in the exhaust gases emitted during the coating production process and recover it in liquid form.

    The principle is based on the fact that the saturation concentration of gaseous NMP in the air varies at different temperatures. By passing the hot air containing a high concentration of NMP through the condensation unit, where it undergoes heat exchange with chilled water, the temperature is lowered to the desired value. At this target low temperature, the gaseous NMP that exceeds the saturation concentration condenses and precipitates into a liquid state. It is then collected through functional components such as demisters within the condensation unit, achieving the purpose of recovering and treating the gaseous NMP.