disadvantage of using copper tubing over SS tubing for gas sample cooler
disadvantage of using copper tubing over SS tubing for gas sample cooler
(OP)
Dear All,
For a gas sample cooler what are the disadvantages of using copper coil over SS coil apart from cost factor
Operating parameters are:
Gas - 55% H2, 12% CH4, CO 13%, CO2 11%
Temperature 750 Deg C
Pressure - 35 KG/Cm2
Cooling media - Water(Silica - 1PPM)
For a gas sample cooler what are the disadvantages of using copper coil over SS coil apart from cost factor
Operating parameters are:
Gas - 55% H2, 12% CH4, CO 13%, CO2 11%
Temperature 750 Deg C
Pressure - 35 KG/Cm2
Cooling media - Water(Silica - 1PPM)





RE: disadvantage of using copper tubing over SS tubing for gas sample cooler
Too bad you can't use silver. 8<)
RE: disadvantage of using copper tubing over SS tubing for gas sample cooler
Have you looked at the physical properties of copper at that temperature? I remember one job when the client wanted to use copper tubing for steam tracing and my mechanical people wouldn't sign off on it and it was a lot lower P and T that what you have.
RE: disadvantage of using copper tubing over SS tubing for gas sample cooler
Your 750C is far, far above the ASME B31.1 limitations for copper pipe....
Go with 316 SS tube !!
MJCronin
Sr. Process Engineer
RE: disadvantage of using copper tubing over SS tubing for gas sample cooler
Also check cooling water side skin temp is less than boiling point at 35kg/cm2, unless this CW is of BFW quality.