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I need help understanding what exactly happens when a refinery reduces operations on Line 1, Line 2, Line 3, and Line 4 What are the compositions of the first-tier reduction, second-tier reduction, third-tier reduction, and fourth-tier reduction?
1. “Reduced-1” refers to the side-stream oil from the vacuum system in the atmospheric and vacuum distillation unit; the vacuum distillation tower operates under vacuum conditions. Reduced-1 oil is of the cracking type, and its freezing point is adjusted according to different refining plans and market requirements. Its density ranges between 0.91 and 0.92, while its freezing point can be adjusted as needed (it can be either above or below zero degrees). Reduced-1 oil can be mixed with Common-1 and Common-2 oils from the atmospheric pressure system; it is classified as Fuel Oil No. 5. It can also be shipped separately and stored in dedicated tanks. The reduced-density version has a lower density and can be used as a diesel component. 2. Base oils of grade 2, grade 3, and grade 4 are used as raw materials for lubricant production facilities. Second-tier, third-tier, and fourth-tier distillates are generally combined together, commonly referred to as mixed paraffin oil. The density is between 0.93 and 0.95! ! ! :handshake
What was said upstairs is a bit general; lubricant-type and fuel-type are different.
The equipment is different, the raw materials used for processing are different, the types of processing vary, and the side products also differ.
May I ask, after subtracting 2, then 3, and then 4, the result goes into the lubricating oil system. Could you provide more details about this lubricating oil system?