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Solutions for distillation column contamination

2012-06-30 View Original

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We suspect that the distillation column (with structured packing) has been contaminated by racemic alcohol oil, which is causing the distillation parameters to remain unsatisfactory for an extended period. Has there been any experience of boiling the column in that location? Is it necessary to boil the tower?
Reply #2 2012-06-30
Razanol oil contamination? What’s going on? Cooking the tower is very simple.
Reply #3 2012-06-30
Have you guys cooked it too? It’s still the same old problem as before; after draining the system and lowering the pH level, things worked fine, but once the system was stopped and restarted, the issue reappeared. Now I’ve decided to boil the tower.
Reply #4 2012-06-30
I don’t think it’s necessary; try increasing the extraction of crude methanol when normal conditions are not met and reducing the reflux for a while.
Reply #5 2012-07-01
By continuing with the distillation, the distillation parameters will meet the requirements. Distillation towers are equipment that should be phased out; towerless distillers have many advantages.
Reply #6 2012-07-02
Does anyone have any good solutions? If it’s about boiling or washing the tower, are there any good suggestions? Thank you
Reply #7 2012-07-02
Colleagues, have you analyzed the potassium permanganate experiment at the bottom of the pre-distillation tower? Ours is over 50 minutes, but it doesn’t work when it reaches the pressure tower
Reply #8 2012-07-02
The boiling tower operations are stopped to carry out the work; otherwise, follow what was said on the fourth floor. Reduce the reflux and increase the tower temperature by 2–4 hours using a rough control method, then restore the temperature. 1 tower: more than 50 minutes, 2 towers after concentration: less than 50 minutes? Can you sit at the bottom of the 2nd tower for a while longer? In our factory, the catalyst column 1, just like yours, operates for only about 25 minutes.
Reply #9 2012-07-04
How to cook taro, the specific steps, and under what circumstances it should be cooked? Thank you
Reply #10 2012-07-06
I would like to ask what \"boiling the tower\" means. What is it, why is it done, and what is the purpose of boiling the tower? Thank you~~~~~:P
Reply #11 2012-07-06
Boil the tower when there are issues with product quality or during maintenance. It involves switching from parking to water circulation; it’s similar to the water-cooling method used at the beginning. The main goal is to raise the temperature and pH level, as well as to remove certain impurities. It can reduce the pressure difference in the tower, improve the distillation efficiency, remove impurities, and make it easier for the product to meet quality standards.

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