Refinery wastewater
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As environmental protection efforts intensify, the requirements for wastewater treatment in the refining industry also increase. At present, acidic water stripping is commonly used for treating wastewater from refineries. I would like to ask everyone to discuss whether the wastewater treatment process in your company involves a single tower, two towers, or some other configuration, as well as the advantages and disadvantages of each approach Thank you for participating!
Our company uses single-tower stripping, and the results are fairly good.
In the case of a single-tower process, how is the ammonium salt handled?
This post was last edited by zfc318 on 2009-6-3 at 16:49. It involves a single tower operating at atmospheric pressure without side-line steam stripping; ammonia nitrogen is sent along with the acidic gases to the sulfur conversion furnace for combustion. Of course, a burner designed for burning ammonia effectively is required, haha – just my opinion
Don’t acidic pipelines get clogged frequently?
I’m not sure what exactly is meant by a blocked acidic gas pipeline, as mentioned above. Why does it get blocked? What substance causes this? Could you share whatever you know about it?
Controlling the temperature at the top of the stripping tower can effectively prevent pipeline blockages! The performance is decent; when it gets clogged, it can be cleared using steam, and after being cleared once, it can maintain stable operation for a long time
I seem to understand a bit now; does \"blockage\" refer to ammonium salt crystals? ! !
We’re using a single tower; it’s hard to say yet what the actual performance will be. We decided to go ahead with it after hearing that it should work well
A single-tower pressurized side-stream extraction process is employed; the ammonia from the side stream is converted into ammonia water for use as a feedstock in catalytic distillation, while the excess amount is burned in an incinerator.