A typical amine gas treating process (as shown in the flow diagram below) includes an absorber unit and a regenerator unit as well as accessory equipment.
In the decades that followed, various proprietary catalytic hydrodesulfurization processes, such as the one depicted in the flow diagram below, have been commercialized.
There are many processes that are available for that purpose as shown in the flow diagram, but amine treating is the process that was historically used.
