Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Demethanizer

Status
Not open for further replies.
cacacho

cacacho

Mechanical
Joined
Dec 29, 2010
Messages
6
Location
US
What is the best material for a demethanizer column at 500 psi/-51 F design conditions
 
Sort by date Sort by votes
Get a copy of ASME Boiler and Pressure Vessel Code, Section VIII, Div 1 and you can determine the optimum material selection. If you are unfamiliar or don't even know this code exists, find an organization in pressure vessel design that will help you.
 
Upvote 0 Downvote
Hi Cacacho,

SA 516/70(impact tested to the design material temeprature) is common MOC for demethanizer.There are plenty of such columns designed with this material, subject to acceptable design & process conditions.
For the design temperature mentioned above the other good option could be SA 537 Cl-1 or Cl-2 steel.
Material selection depends on a lot of other factors also:-
-sour service requirements
-corrosion rates
-overpressurizing conditions which may lower the temperature below -51F
-Other design conditions as applicable

Generally good EPC companies would have the required engineering experiences on such equipments. As advised by "metengr" you need to consult them.


Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario, Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299


 
Upvote 0 Downvote
pradipgoswami
Thanks for sharing your experience. this is, really, a response with value-added (That is the purpose of this forum).
 
Upvote 0 Downvote
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top