Next, the crude oil is heated to about 700 degrees Fahrenheit (371 degrees Celsius). At this temperature it breaks down into a mixture of hot vapor and liquid that is then pumped into the bottom of the first of two fractionating towers. Here, the hot hydrocarbon vapors float upward. As they cool, they condense and are collected in different trays installed at different levels in the tower. In this tower, normal atmospheric pressure is maintained continuously, and about 80 percent of the crude oil vaporizes.
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How are lubricants produced
A lubricant consists of 70-100% base lubricants and up to 30% chemical compounds known as
Quality Control
Most applications of lube oils require that they be nonresinous, pale-colored, odorless, a
Additives, inspection, and packaging
Finally, the oil is mixed with additives to give it the desired physical properties (such