VCM recovery from rectification tail gas
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During calcium carbide-based VCM production process, the rectification tail gas is vented to atmosphere, which contain 6~30% VCM , depending on the cooling temperature and pressure of the condenser. The release of VCM causes both severe environmental pollution and the loss of valuable chemicals. So it is very meaningful to recover VCM from tail gas.
　　Eurofilm Solution:

　　System performance：
　　• VCM recovery is up to 95%, acetylene recovery is up to 85%.
　　• Reduces the charge of absorption or adsorption unit
　　• Calcium carbide unit consumption is decreased by 30kg/PVCt
　　• Eliminates the tail gas condenser or reduces its cooling temperature
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VCM recovery from unreacted monomer during polymerization
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Typically Unreacted VCM is recovered by compression-condensation method in PVC production. Due to the presence of inert gas, noncondensable gas is vented from the condenser which contains 20%~80% VCM. It will bring great economic and social benefits if VCM recovery can be further enhanced.
　　Eurofilm Solution：

System performance：
　　• VCM unit consumption is decreased by 5~15kg/PVCt
　　• The VCM concentration in the residue gas of membrane is less than 1%.
　　• Reduces the charge of traditional treatment process.
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Ethylene and Dichloroethane recovery in ethylene oxychlorination
    process
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A purge gas is used to control the accumulation of inert gas in the reactor of Ethylene oxychlorination process. In the purge gas, Ethylene concentration is 25% and EDC concentration is about 3% which causes the great loss of valuable chemicals..
　　Eurofilm Solution

System performance：
•The ethylene recovery is up to 85% and the EDC recovery is up to 98%.
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Comparison of membrane method and traditional method：

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