Jump to content

  • Log in with Facebook Log In with Google      Sign In   
  • Create Account


ChExpress Blog - 416/14

Read the latest news from the chemical industry in Christa's blog.

Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

HDPE Liners for Carbon Steel Pipes

Converting From Kg-mol/hour To M3/hour


This topic has been archived. This means that you cannot reply to this topic.
2 replies to this topic
Share this topic:

#1 Guest_Guest_*

Guest_Guest_*
  • guestGuests

Posted 06 February 2005 - 10:13 AM

Hello

I'm given a gas at a certain T,P and flowrate in kg-mol/hour
I must convert this to m3/hour

I think :

kgmol/hour * (RT/P) where RT/P = V/n = m3/kmol

would give me the correct units.

Is this correct ? are kmol = kgmol ?

Thanks!

#2 mbeychok

mbeychok

    Gold Member

  • ChE Plus Subscriber
  • 364 posts

Posted 06 February 2005 - 03:37 PM

For any ideal gas, 1 kg-mol = 22.414 m3 at 0 C and 1 atmosphere. Thus:

(Equation 1) m3/hr at 0 C and 1 atmosphere = (22.414) ( kg-mol/hr )

To convert m3/hr at 0 C and 1 atmosphere to m3/hr at any other T and P, use:

(Equation 2) P1V1/T1 = P2V2/T2

In using Equation 2, be sure to use absolute pressures and absolute temperatures (K or R). In some cases where there is a large difference between conditions 1 and 2, you may need to use compressibility factors (Z) in Equation 2. Thus:

(Equation 3) P1V1/(Z1T1) = P2V2/(Z2T2)

#3 Guest_Guest_*

Guest_Guest_*
  • guestGuests

Posted 06 February 2005 - 10:04 PM

QUOTE (Guest @ Feb 6 2005, 10:13 AM)
Hello

I'm given a gas at a certain T,P and flowrate in kg-mol/hour
I must convert this to m3/hour

I think :

kgmol/hour * (RT/P) where RT/P = V/n = m3/kmol

would give me the correct units.

Is this correct ? are kmol = kgmol ?

Thanks!

Just to add a little to 'are kmol = kgmol'......

That is correct if you are working in SI units - all you are saying is that you are measuring molecular weights in kg/kmol.

You can also find lb-moles.




Similar Topics