Chemical Forums

Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: ana on May 02, 2007, 05:36:23 PM

Title: physical data
Post by: ana on May 02, 2007, 05:36:23 PM

I'm desperate, i have to design an absorption column and I can't find the solubility equilibrium curve between chlorine (gas) and water. I would like to find a curve y vs x or partial pressure vs concentration. can anybody help me?
Thanks

Title: Re: physical data
Post by: Borek on May 02, 2007, 06:10:26 PM

I may be missing something, but isn't it just linear? Henry's law? c = kp?

Title: Re: physical data
Post by: ana on May 02, 2007, 06:15:55 PM

well i guess that only applies for dilute solutions but i have a concentrated solution so I guess I have to use a equilibrium curve but I can't find it. Do you know what is the value for the Henry constant?if I don't find the curve I will have to use it.

Thank you very much.

Title: Re: physical data
Post by: AAM on May 10, 2007, 03:13:38 PM

Hello,
I suggest you use a simulation tool to establish this curve.

Title: Re: physical data
Post by: Donaldson Tan on May 10, 2007, 08:13:44 PM

Aspen will help a lot.

Just input your stream data and operating condition.

Aspen will tell you the number of ideal stages.

Title: Re: physical data
Post by: mbeychok on May 20, 2007, 06:06:05 PM

geodome:

You are correct that a simulation model such as Aspen may solve Ana's problem. But then Ana has learned absolutely nothing.

A better answer would have been that she should do a library search for the data she needs and design her absorption column using that data. After that, she could use Aspen to check her work.

Title: Re: physical data
Post by: Donaldson Tan on May 30, 2007, 03:51:35 PM

Often, it is harder to find the thermophysical or chemical data than it is to solve the problem analytically.