High CO2 H2S TEG Dehydration MOC
High CO2 H2S TEG Dehydration MOC
(OP)
Colleagues,
We plan to dehydrate the regenerated gas from an amine unit. The gas will be substantially CO2 and H2S. Typical materials of construction for TEG dehydration units are 316L/316L clad. If anyone is operating high acid gas dehydration units - have you found 316L to be an acceptable material selection, or have you upgraded the material in design or had to upgrade because of corrosion problems in operation? Any experiences would be valuable information. Many thanks.
We plan to dehydrate the regenerated gas from an amine unit. The gas will be substantially CO2 and H2S. Typical materials of construction for TEG dehydration units are 316L/316L clad. If anyone is operating high acid gas dehydration units - have you found 316L to be an acceptable material selection, or have you upgraded the material in design or had to upgrade because of corrosion problems in operation? Any experiences would be valuable information. Many thanks.
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/





RE: High CO2 H2S TEG Dehydration MOC
RE: High CO2 H2S TEG Dehydration MOC
However, in a high C02 Environ (98%, 3% H2S), I have seen two contactors made from 304L SS operating with no significant losses or others signs of corrosion (pitting, etc) operating for 20+ years.
Scott Hoffman
Mustang Engineering
RE: High CO2 H2S TEG Dehydration MOC