Generation of Equilibrium Curve for the Use of McCabe-Thiele method

As I did separation homework, questions sometimes asked to plot given data points to construct equilibrium curve before doing anything. This can produce errors because hand construction of curve is not accurate enough. In order to avoid this and get to the real question faster, I developed a .m Matlab file to generate the curve automatically.

Users need to input liquid and vapor compositions. Then curve will be plotted for further use. I am not sure if this is actually helping you. But I feel the joy doing it.

Below is an example and the consequent curve.

Step 1. Open and run the Equilibrium.m file

Step 2. Input liquid compositions from lowest to highest. Remember to enter 0 in the beginning and 1 at the end. This should be in a vector form, which is in a pair of [ ] and separated by a space. For example,

Step 3. Input vapor compositions in the same manner as Step 2. For example,

Step 4. An equilibrium curve should be generated like the following graph.

If you need to download the .m file. You can do so by going to the following link. Thank you.

https://www.dropbox.com/s/5rv7xb2g7d59q9i/Equilibrium.m

First Post

This is my first post in the blog. After doing all 4000 level chemical engineering homework together with Ken, Chris and Hisham, I think this blog will be interesting for people to share their chemical engineering experiences.

As usual, we were doing ChmE homework again in library. After spending almost 4 hours trying to solve one single problem, we found that the problem statement could be wrong. More ironically, when we did the same question yesterday, we found that the question was different in 2nd edition and 3rd edition textbook. With common sense, we followed the newer version. But, today we found that the 2nd edition was correct?

First lesson: 

Get the "real" book or you will regret.

Question:

Are the molecular sieves used in pressure-swing adsorption?

Since this is the first post of the blog, I do not want to make it so intense.