Eng-Tips is the largest forum for Engineering Professionals on the Internet.

Members share and learn making Eng-Tips Forums the best source of engineering information on the Internet!

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

compression of corrosives - not pratical..

Status
Not open for further replies.

jamesbanda

Chemical
Joined
Sep 21, 2004
Messages
223
Location
US
dear all,

has anyone used a compressor on corrosive material. as far as i am aware it is pratically not possible for large flows ie above 10000m3/hr+...

is this true..


 
Give us details of corrosive materials. I've compressed a lot of water saturated CO2, O2 and H2S at high rates.
 
say wet HCl gas..

i am trying to evaluate if there is any milage on reducing capital cost by removing a cooling drying step..


 
My experience says that making the compressor cylinder out of mild carbon steel, then having the valves, rods, and other material made out of 316 (?) is ok because during the compression cycle there is no free water to allow corrosion. All the interstage piping and coolers will be 316. You can then do a cost analysis with that kind of specification versus all carbon steel and a dryer system. I'd look at doing the first stage compression as described above and then dry the HCl before the final stages. So a combination may be the best solution.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top