Application of PSA Technology in Dry Gas Recovery of Ethylene
The 150 000 tons/year dry gas ethylene recovery unit of yangtze petrochemical co.,Ltd.adopts the patented technology for recovering refinery ethylene resources developed by southwest chemical research and design Institute co.,Ltd.,and applies pressure swing adsorption(PSA)separation process to achieve the recovery of rich ethylene gas.The operation results of the device indicate that the CO2 content in the ethylene rich gas obtained by PSA separation is 11.2 mL/m3,H2S＜2 mL/m3,O2＜3 mL/m3 and methane＜13% (V),meeting production needs.Analyze the problems that arise during the operation of the device and provide suggestions for further optimization and improvement in future design and production.
dry gas recovery of ethylenepressure swing adsorptionPSArich ethylene gas
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