How to recycle and treat acetone VOCs waste gas? Application of Condensation+Membrane Separation Liquefaction Recovery Process in Chemical Workshop

Direct answer:The preferred combination process for recovering acetone VOCs waste gas is compression condensation+membrane separation. Acetone has a low boiling point, evaporates quickly, and the concentration of exhaust gas in the workshop fluctuates greatly - the condensation section directly liquefies most of the acetone vapor after compression and concentration, and the liquid acetone can be reused in production after water separation and filtration; The membrane separation section enriches and treats the residual low concentration exhaust gas after condensation, and purifies the gas to meet emission standards. Full process physical recycling, without incineration or hazardous waste production.

Characteristics of Acetone Waste Gas

Acetone is a commonly used solvent in the chemical, pharmaceutical, and electronic cleaning industries. It has a high saturated vapor pressure, low lower explosive limit, and is highly volatile at room temperature; The emissions from the batching, mixing, cleaning, and drying processes exhibit intermittent pulse characteristics, with severe fluctuations in air volume and concentration, requiring high adaptability to the operating conditions of the treatment equipment.

Recycling process flow

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1. Closed collection:Each waste point is collected through a negative pressure pipeline network to prevent unorganized dispersion in the workshop.
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2. Preprocessing:Remove fog droplets and moisture, protect the condenser and membrane components.
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3. Compression condensation:After increasing the partial pressure of acetone vapor, multi-stage gradient condensation occurs, and most of the vapor liquefies and precipitates. The liquid acetone is separated and filtered before reuse.
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4. Conclusion of membrane separation:The residual low concentration exhaust gas is enriched by a polymer membrane, and the enriched gas is circulated and purified to meet emission standards.
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Key points of workshop application

Acetone has a low lower explosive limit, and the device must be designed according to Class A explosion-proof standards, equipped with online monitoring of combustible gas concentration and interlock for over temperature and over pressure; The self-control system automatically tracks the pulse exhaust regulation load; The integrated pry and install unit is suitable for centralized management of multiple workstations and technological transformation of old workshops.

FAQ

Q: Can recycled acetone be used directly?
A: After separation and precision filtration, the quality of the condensate meets the production reuse standards and is directly reused in the workshop.

Q: Does pulse exhaust affect the effectiveness?
A: PLC automatic load regulation, increased condensation intensity during peak periods, membrane separation and bottom protection during low concentration periods, ensuring stability throughout the entire process.

LuoyangWohong PetrochemicalEquipment Co., Ltd. provides a complete set of VOCs liquefaction and recovery equipment for acetone and other ketone solvents. Please feel free to inquire.