Once the oil was taken up by the gel fibers; it could then be separated from the gel by utilizing vacuum distillation and furthermore the gelator could be recycled.
32.
The Urine Processor Assembly uses a low pressure vacuum distillation process that uses a centrifuge to compensate for the lack of gravity and thus aid in separating liquids and gasses.
33.
To process imported crude the refinery was expanded during 1978-79 by adding another 3 mmtpa crude distillation unit along with downstream processing units including vacuum distillation, visbreaker and bitumen blowing units.
34.
The vacuum distillation column internals must provide good vapor liquid contacting while, at the same time, maintaining a very low pressure increase from the top of the column top to the bottom.
35.
Residual oil from the vacuum distillation unit ( sometimes including high-boiling oils from other sources within the refinery ) is pumped into the bottom of the distillation column called the main fractionator.
36.
For example, the vacuum distillation unit may also produce fractions that can be refined into endproducts such as : spindle oil used in the textile industry, light machinery oil, motor oil, and various waxes.
37.
Multi-stage counter-current extraction is commonly used so fresh naphtha first contacts wood leached in previous stages and naphtha laden with turpentine from previous stages contacts fresh wood before vacuum distillation to recover naphtha from the turpentine.
38.
Figure 2 is a simplified process diagram of a petroleum refinery vacuum distillation column that depicts the internals of the column and Figure 3 is a photograph of a large vacuum distillation column in a petroleum refinery.
39.
Figure 2 is a simplified process diagram of a petroleum refinery vacuum distillation column that depicts the internals of the column and Figure 3 is a photograph of a large vacuum distillation column in a petroleum refinery.
40.
:Heres one data point for the BP pure anhydrous compound can be prepared by vacuum distillation as a colorless liquid, which freezes at-112C and boils at 16C at 2.4 kPa ( 18 mm Hg ) without decomposition
