Hydrocarbon Compression

Flash Drum

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The rich amine solution from the absorber is flashed to a separator to remove any hydrocarbons. A small percentage of acid gases will also flash when the pressure is reduced. The dissolved hydrocarbons should flash to the vapor phase and be removed. However, a small amount of hydrocarbon liquid may begin to collect in this separator. Therefore, a provision should be made to remove these liquid hydrocarbons.

Typically the flash tanks are designed for 2 to 3 minutes of retention time for the amine solution while operating half full.

Written by Jack

September 19th, 2009 at 10:35 pm

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