High reboiling temperature in distillation column

Has there been a change in pressure on the outlet? Has there been a shift in the chemical composition (concentration of high boilers) ?

Hi Guest,

Have you changed anything at all?

If this came on over several weeks or months, it could be the calcium in the expelled water which could possibly have started to narrow the exit?

For it to suddenly happen, I cannot explain.

I assume the pressure in of all water and or liquid is the same as usual?

Keep in touch.

Need more information to help.

1 Is it forced circulation or thermosyphen?

2. Is the steam in tubes or direct injected?

3 What is the function of the column, what is being separated?

4. Describe the control for the column, is the pressure wild in the bottom or controlled?

5. What controls the re-boiler level and temperature?

6. Has the steam rate changed for the same conditions and the outlet hotter or are there other changes?

7. Has the feedstock changed outside normal (not specification) parameters?

We would like to help, but only guessing without information.

Paddler

One other question: Is this a batch or continuous process?

Mike