Sealing oil medium for catalytic devices
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What do you use as the sealing medium in catalytic units? We use diesel, while some units use wax oil. What are the advantages and disadvantages of each?
Catalytic units generally use diesel, while coking uses wax oil.
The use of diesel is very common; I’ve never seen anyone use paraffin oil
Is wax oil used as the sealing oil in atmospheric and vacuum distillation units?
Using wax oil is no problem; it’s just that there are catalysts in the reprocessed oil within the catalytic process.
Could we consider using the crude oil that goes into the equipment, instead of our reprocessed oil?
This post was last edited by dqkwb on 2018-1-26 at 18:32. Personally, I think it’s better to use diesel in northern regions, as wax-based oils tend to condense, which can cause problems such as blockages in the pipelines over time. Moreover, some oil-sealing devices also come equipped with burning oil, making diesel even more convenient. The downside is that diesel must be dehydrated regularly to prevent vacuum formation due to water content. In the northern regions, it is not very suitable to use paraffin oil; moreover, adding a separate diesel system for burning fuel increases costs. The advantage of paraffin oil is that, when it enters the heavy oil pump, it is less likely to contain water, and it also reduces the risk of excessive vaporization leading to vacuum conditions.