VOCswaste gas treatmentThe core contradiction is that the concentration is too low and the air volume is too large. Directly treating large-volume, low-concentration exhaust gases—whether by condensation or combustion—requires oversized equipment and results in significant energy consumption.
gas separation membraneThe solution is this problem: first enrich the organic matter in the waste gas and then treat it.
How is the membrane enriched?
Different gas molecules run differently in polymer membrane materials. VOCs molecules preferentially penetrate the membrane layer, and nitrogen and oxygen are trapped. Specially designed semipermeable membranes are 10 to 100 times more permeable to VOCs vapors than to air. After the exhaust gas passes through the membrane module, the concentration can be increased by 5 to 10 times, and the volume flow rate can be greatly reduced. The air on the purified side is discharged directly to the standard, and the gas on the concentrated side enters the subsequent condensation recovery.
After enrichment?
Originally, it was necessary to deal with high-volume and low-concentration exhaust gas, but after membrane separation, it was only necessary to deal with low-volume and high-concentration gas. The subsequent condensing equipment can be selected as small as one, and the refrigeration energy consumption can also be reduced. Compared with the traditional cryogenic technology, the comprehensive energy consumption can be reduced by more than 60%.
suitable for what conditions?
Membrane separation is mainly used for the recovery of VOCs gas with a concentration of more than 1%(10000ppm), and has a good enrichment effect on benzene, toluene, xylene, methyl ethyl ketone, chloroform, dichloromethane, vinyl chloride, etc.
Normal temperature operation, no open flame, suitable for explosion-proof places; noactivated charcoalConsumables, do not produce hazardous waste. First, conduct a condition test and let the data speak.
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