VOCswaste gas treatmentThe technical route can be broadly divided into two categories: destruction and recycling. Incineration involves burning or oxidizing organic compounds to meet emission standards, but the resources are lost in the process; recycling, on the other hand, involves separating organic compounds from waste gases for reuse.
The separation membrane technology takes the road of recycling.
From "get rid of" to "stay"
The idea of traditional end treatment is "disposed of"-centralized destruction or adsorption after waste gas collection. The idea of membrane separation is different. It uses the difference in the permeation rate of different gas molecules in the membrane material to allow VOCs molecules to preferentially penetrate the membrane layer to be enriched, and nitrogen and oxygen are intercepted and discharged. This process is purely physical separation, no phase change, no chemical reaction, and no secondary pollution.
Logic of Resource Recovery
Membrane separation itself does not directly recover the liquid solvent, and its task is to "concentrate"-to increase the concentration of organic matter in the exhaust gas by 5 to 10 times. The concentrated high-concentration gas enters the condensation unit, and the organic matter changes from gaseous to liquid, and is directly recovered as solvent for production. Membrane is responsible for separation, condensation is responsible for recovery, with the formation of a complete resource chain.
From End-of-End Governance to Front-End Reuse
The significance of separation membrane technology is to treat the waste gas from the "end of the money" into the "front-end reuse". The solvent concentration recovered by the membrane method is higher than 90% and can be directly reused for production. Waste gas is no longer a burden that needs to be treated, but a resource that can be recycled.
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