Do you need deep removal of CO2 and H2S?

You can, using Shell’s ADIP-X technology. The ADIP-X technology was introduced in 2000 by Shell for cost-effective removal of CO2, H2S and COS. The addition of piperazine to methyl diethanolamine (MDEA) accelerates the reaction kinetics. Our current reference sites remove CO2 down to <50 ppmv from approximately 20 vol% CO2 in the feed, thereby meeting the low level required in LNG plants


  • <50 ppmv CO2 removal;
  • Faster CO2 and COS removal through enhanced reaction kinetics;
  • Higher loading capacity, which reduces the solvent circulation rate by 20–30% and enables the use of smaller equipment;
  • Reduced steam requirements because of its lower solvent circulation rate and heat of reaction;
  • Very low hydrocarbon co-absorption; and
  • Reduced solvent degradation, with no reclamation required.

Additional Services

  • The technology could come with a range of service offerings such as proactive monitoring, training and troubleshooting.
  • A comprehensive solvent monitoring programme conducted by a Shell in-house laboratory is available: leverage operational experience to maintain solvent quality.

Shell’s experience:

ADIP technology has a long history in Shell. First developed in the 1950s and with over 500 Shell operating facilities and licensees, it is our most referenced technology to date. ADIP technology has established a track record of high levels of performance and reliability.

More In Licensed Technologies

Acid Gas Removal

Meet natural gas commercial specifications cost-effectively by using the licensed technologies ADIP and SULFINOL technologies to remove carbon dioxide (CO2), hydrogen sulphide (H2S), mercaptans (RSH), carbonyl sulphide (COS) and other organic sulphur compounds 

Contact Gas Processing

Please contact the Shell Gas Treating and Sulphur Removal technologies team for further information and we will respond to your enquiry via email.