As a DMC Distillation Plant, share it with you. The operation of the
distillation tower is an important operation link of the atmospheric and vacuum
distillation unit. It controls the quality control of the main products, so it
should be operated smoothly to reduce fluctuations. For this reason, the
following points should be paid attention to:
Distillation Technology
1. Stabilize the feed and discharge flow of each tower. In addition to the
discharge flow rate of the tower bottom pump, pay attention to the changes in
the amount of oil pumped out of each side line. The adjustment range of these
flow rates should be small and be adjusted depending on the quality and yield of
their respective products.
2. The temperature of each material should be stabilized. When the
temperature changes, it should be timely adjusted according to the product
quality.
3. The initial distillation tower, the atmospheric tower and the vacuum tower
are operated in series in sequence. The operation of the previous tower is
unstable, and the properties of the bottom oil change, which will affect the
operation of the subsequent towers. Pay close attention to the operation.
4. In the operation of the distillation column, the stability of the bottom
liquid level and the stable amount of stripping steam are important conditions
for the stable operation of each column.
5. When the operating pressure of the tower changes, the extraction
temperature of each line should also change accordingly. It should be adjusted
in time to ensure product quality. The vacuum at the top of the decompression
tower has a great impact on the extraction rate and cut of the decompression
tower. Strive to keep the pressure stable.
6.The change in the water content of crude oil has a great impact on the
distillation tower. When the water content changes significantly, the operation
should be adjusted in time.
There are three types of distillation towers. One is a simple distillation
tower with four specifications of 19mm, 24mm, 29mm, and 34mm in diameter; and
four specifications of filler height: 350mm, 700mm, 1000mm, and 1300mm. Since
the interface adopts a standard grinding port, when a tower with a packing
height greater than 1300mm is required, it can be freely added as needed. Since
the outside of the simple distillation tower needs to be insulated with glass
wool and glass cloth, it is inconvenient to observe the gas-liquid contact in
the tower during use
The other is a vacuum distillation tower, with four diameters of 19mm, 24mm,
29mm, and 34mm; two types of tower heights: 700mm and 1300mm; two types of
internal serpentine tubes and external expansion and contraction joints, using
vacuum jacket and silver plating Adiabatic insulation, and has an observation
window to directly understand the contact between the distillation gas and
liquid in the tower.
In addition, there is also an electrically heated rectification tower with
diameters of 19mm, 24mm, 29mm, 34mm, 50mm, etc.; tower heights are 700mm,
1000mm, and 1300mm. Because of the standard ground connection, if the tower
height of 2000mm is required, only the 700mm tower needs to be connected to the
1300mm tower.
It is composed of inner, middle and outer tubes. The inner core tube is
filled with filler, and the inner tube and the middle tube are both wrapped with
flat electric heating tape, and the outer layer is a thermal insulation
protection layer. The temperature setting of the electric heat preservation is
divided into the upper and lower layers. The power is supplied by the cs00a
fine-view console. The upper and lower layers of the temperature measurement use
pt100 platinum resistance, and the lead wire is connected to the distillation
console. The digital display shows the temperature accuracy of each point as 0.1
℃, wide control temperature range, suitable for high temperature distillation
operation.
Our company provides Distillation Technology, welcome to contact us.
