Dear yahoo, what is the start up procedure for Distillation plant?

Answer 1

In this contribution, we suggest an efficient hierarchical hybrid control scheme for the start-up of a distillation plant consisting of two coupled distillation columns. The overall control task is decomposed into a set of low-level and high-level subtasks. Each of these subtasks can be solved with much less effort than the original specifications. Low-level tasks are solved by means of continuous feedback, whereas the high-level task is solved by a discrete supervisory controller operating on quantised measurement information and switching between continuous low-level controllers. The approach presented is set within a behavioural framework; it guarantees that the chosen interaction of low-level and high-level control does indeed enforce the specifications.

Answer 2

For What? Booze or petroleum? For The Booze type, first thing you need to know is the boiling temperature of the item you want to extract is. This is basics of course, because there is more to it than this.
You then bring your raw material, or mash up to that boiling point and hold it there, until all the product is extracted. So first you need to know the temperature,second heat it up to the proper temperature, third keep it there at that temperature while you are extracting the item you want. Remember alcohol,methanol,ethanol etc. boils before water does. Simple!

Answer 3

My guess is a low feedrate and get the reboiler up to temperature. Recycle top product once level established in overhead drum. Draw off products on level control and increase feedrate.

Answer 4

make as much as you can