© Twin Process Filtration | |
The hot Lean amine from the reboiler is circulated back to the absorber after passing through the Lean / Rich cross exchanger, a lean solution cooler and a filter system.
The condensed water is separated in the reflux accumulator and returned to the still.
The stripped acid gas typically flows to a Claus sulfur plant for further processing.
Steam and acid gases separated from the Rich amine are condensed and cooled.
The Rich amine is further heated in the regeneration column. The steam rising through the regeneration column, regenerates the amine.
From the flash tank, the Rich amine flows to the top portion of the regenerator/stripper after passing a Lean/Rich cross exchanger.
Rich amine solution leaves the absorber and flows to a flash tank.
Purified gas leaves at the top of the absorber.
Sour gas flows through the absorber tower and is contacted counter-currently with the aqueous amine solution absorbing the acid gas in the amine.
After passing through an inlet separator and/or gas-liquid coalescer to remove the majority of hydrocarbons and solids, the sour gas is introduced at the bottom of the absorber.
· PROCESS DESCRIPTION
Twin Process Filtration focuses on the removal of the problem causers:
Amine solvents are widely used to remove Carbon Dioxide (CO2) and Hydrogen Sulphide (H2S). These are called “acid gases” because when absorbed in water, they form an acidic solution.Therefore, much is demanded from sweetening units in the refinery process and it is essential that the washing system is free from problem causers. Removing arisen contaminants from the Amine is an effective method for securing the unit’s capacity, also in protecting the system and downstream equipment against corrosion, erosion, wearing, plugging, etc.
Gas Sweetening or Gas treatment is a term used to describe the various processes for removal of contaminants, primarily Hydrogen Sulfide (H2S) and Carbon Dioxide (CO2) from natural gas or hydrocarbon liquids.
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