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Can one of you kindly suggest what property package to use in HYSYS for Ethylene Oxide/Ethylene Glycol production unit. The components in a typical stream would be: Nitrogen, Oxygen, Argon, Methane, Ethane, Ethylene, Ethylene Oxide, CO2, Acetaldehyde, Mono ethylene Glycol, Di ethylene glycol, triethylene glycol, water, tetra ethylene glycol, formaldehyde