Collect information on common problems encountered in atmospheric and vacuum distillation units
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I humbly ask the experts in refining technology on this forum for their guidance, and I would appreciate it if you could share with me the problems that you often encounter in the processes of atmospheric and vacuum distillation units, as well as information regarding the chemicals used in various process stages. Everyone, while discussing and exchanging ideas, could please do me a favor as well; I’m extremely grateful
The aspect the original poster is talking about? Is it process design? Production operations? Is it still the material that affects issues such as oil quality? What kind of additives are used? Explain it more clearly too
Ultrasound is effective for demulsification in electrodialysis; no demulsifier is required, which helps save labor and costs.
There are many issues with atmospheric and vacuum distillation, as the technology itself is quite fragmented, and these processes serve as the core of various enterprises. Next, I will give a few examples from my experience, in the hope that everyone can make progress through joint learning: First: Corrosion at the top of the atmospheric and vacuum distillation units; corrosion inhibitors are used, but the control of separating water from the dirty oil at the top of the vacuum tower is not effective. II: Heat exchange network issues. The heat exchange systems in atmospheric and vacuum distillation are quite complex, and the optimization and management of these heat exchange networks represent an important challenge. III: Control of the furnace – The control of the furnaces in atmospheric and vacuum distillation units is particularly strict; the quality of furnace temperature control is crucial for ensuring the stable operation of the entire unit.
What I mainly want to ask about is what effects the addition of these additives might have on the production process or the products themselves. The additives in question are slurry scale inhibitors, metal passivators, and high-pressure hydrogenation scale inhibitors. Controlling top-cut wastewater is indeed challenging, as it is directly related to the quality of crude oil.
The several types of agents you mentioned have nothing to do with atmospheric and vacuum distillation units.
Really? Then please give me some advice. What is it all related to? What chemicals are used in atmospheric and vacuum distillation?
In atmospheric and vacuum distillation, there are corrosion inhibitors, demulsifiers, and ammonia water. .
In other words, all three agents I mentioned above are added to the hydrocracking unit
Slurry scale inhibitors are used in catalytic units; those commonly employed in atmospheric and vacuum distillation units include residue scale inhibitors, high-temperature corrosion inhibitors, demulsifiers, decalcifiers, corrosion inhibitors (injected at the tower top), and ammonia water.