Incineration and adsorption are VOCswaste gas treatmentThe two old roads. Incineration (RTO/TO) is based on the principle of high-temperature oxidation, which burns organic matter into carbon dioxide and water. Adsorption depends onactivated charcoalThe organic matter is trapped in the channel. Both paths can meet the standards, but each has its own price.
The cost of burning is gas. RTO to continue to burn natural gas to maintain the furnace temperature, gas costs are a fixed expenditure. When the exhaust gas concentration is low, additional fuel must be supplied; when the concentration is high, the solvent is also completely burned off. It's up to standard, but the solvent is gone and the gas bill is still there.
The cost of adsorption is carbon. Activated carbon will be saturated, and the frequency of carbon exchange depends on the concentration of exhaust gas. The saturated carbon replaced is hazardous waste, and the disposal fee is calculated by ton. The money for carbon replacement and disposal may exceed the equipment itself in a year. The solvent was sucked away by the charcoal, leaving nothing behind, but the money kept flowing out.
Compression condensation membrane separation is not the two paths. It does not burn, does not suck, by physical separation-first condensation, membrane separation.
After the waste gas enters the condensation unit, most of the organic solvent is directly changed from gaseous to liquid through grading cooling, and flows out from the collection tank with a purity of more than 90%, which is directly returned to the production line. The condensed tail gas, with a small amount of unliquefied organic matter, enters the membrane separation unit.gas separation membraneIt has selective permeation characteristics for organic molecules. VOCs preferentially permeate the membrane layer to form concentrated gas, which is sent back to the front end of condensation for circulation treatment. The trapped air meets the discharge standard.
This closed-loop design integrates both recycling and compliance into a single process. Condensation is responsible for recovering solvent to create value, and membrane separation is responsible for gatekeeping to ensure emission compliance. With the combination of the two, the total recovery rate of the system can reach more than 95%, and the emission concentration can meet the requirements of environmental protection.
The process is driven by electricity, does not consume natural gas, does not replace consumables such as activated carbon, and does not produce hazardous waste. Purely physical separation, with no open flames, suitable for hazardous areas such as chemical plants, pharmaceutical facilities, and tank farms.
Incineration and adsorption treat the exhaust gas as "something to be disposed of", and compression condensation membrane separation treats it as a "recyclable resource". The fundamental difference between the two ideas is that one lets the organic matter disappear and the other lets the organic matter stay.
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