How to deal with C4 in the extraction water of MTBE extraction tower
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When our company's MTBE started to operate, the recovery tower could not be started, mainly because the extraction water contained a large amount of carbon four. The sieve plate tower was severely blocked by rust. The extraction water in the upper part cannot reach the bottom of the tower, and the overall circulation cannot be carried out, so the extraction tower is forced to be shut down for processing.
There is nothing you can do about the clogging of the screen plate caused by corrosion. You can only clean it and restart the operation. You can apply a deacidifier or increase the water change.
What material are the sieve plate tower internals made of? Isn't it stainless steel?
How to replace the screen plate with stainless steel
If the problem is too serious, the extraction tower can only be shut down to purge the extraction tower with steam. What is the temperature rise in the upper bed of your company's reactor?
Transform the tower internals into a high-efficiency double-layer vertical sieve plate, or reduce the pressure and change it to gas-liquid contact. We have transformation cases
This phenomenon is very common. The best way is to prevent it in the early stage and remove it after it occurs.
Is it because the rust in the pipelines and heat exchangers has rushed into the tower? There are too many.
First, the reason for carrying carbon four is because the tray is clogged and the water circulation is not smooth. The solution to the blockage of the water-washed carbon four ascending channel: Clean the tray, wash the resin catalyst of the catalytic distillation tower with methanol, and remove most of the sulfonic acid to avoid corrosion of the rear path. It is recommended to clean the tray regularly in a planned manner and check the thickness of the pipe regularly.