Gas Sweetening

Amine Wash Process

The acid gas like H₂S or CO₂ present in natural gas will corrode equipment or pipelines if it is left untreated while transporting or liquefying. Our technology adopts an amine sweetening process by using MDEA or other alkaline solution to form full contact with the natural gas, leading H₂S and CO₂ to transfer into the alkaline solution; as a result, the acid gas is removed from the natural gas, eliminating the threat of corrosion.

• Capacity: 1000~500000 m³/hr

• Operating pressure: 0.5~15 Mpa

• Spec.: H₂S < 4 ppm  CO₂ < 50 ppm or 3%

• Mixed amine or proprietary amine

• For the bulk removal of H₂S with low CO₂ content, normal MDEA is suitable, mating with a direct flow SRU

• For the bulk removal of H₂S with high CO₂ content, proprietary Amine is suitable, mating with a split flow SRU.

• For the bulk removal of CO₂ without H₂S, activated Amine is suitable. Various processes - such as lean absorption/semi-lean absorption, depressing flash or heat strips - can be used.

   

    

  Bulk H2S removal with low CO2 content                              Low energy option for bulk CO2 removal without H2S