| Customization: | Available |
|---|---|
| Material: | Metal |
| Application: | Industry |
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Johnson Screen Filter (Wedge Wire Filter) For Hydrogenation Unit
At present, the world's crude oil tends to be inferior and heavy, but the market demand for light oil such as gasoline, diesel oil and kerosene is increasing substantially, and major refining enterprises are pursuing the maximum conversion of residual oil.
Therefore, hydrotreating process is becoming more and more important.
In order to meet the growth of market demand, we have established a wedge wire filter element production line for automatic backwash filter with integrated production and quality inspection in workshop #1.
These filter elements are specially used in hydrogenation unit of petrochemical industry.
Main equipment of hydrogenation unit
Hydrogenation reactor
High pressure heat exchanger
High pressure air cooling
High pressure separator
Reaction heating furnace
New hydrogen compressor
Recycle hydrogen compressor
Automatic backwash filter
If the mechanical impurities are not removed, they will be deposited on the top of the reactor, which will cause the reactor pressure difference to be too large and forced to shut down and shorten the operation period of the unit.
Therefore, hydrogenation raw materials need to be filtered, and now automatic backwash filters are mostly used.
Compared with the old filter, the automatic cleaning filter has the advantages of high automation and high filtering precision, which shows its advantages in practical application.
The automatic backwash filter adopts the principle of mechanical separation, high quality metal wedge wire filter element is used to separate impurities from raw materials.
The filter surface of the filter tube is made of wedge-shaped wire, and the small gap between the wedge-shaped wires forms a cross section, which is conducive to backwashing.
When the raw material passes through the filter cartridge with Johnson screen filter element, the mechanical impurities gradually deposit on the outer surface of filter element.
As the deposition of mechanical impurities increases, the raw materials passing through the filter element gradually decrease, and the outlet pressure also decreases, resulting in the increase of the differential pressure of the filter. The equipment will use the filtered raw material and its own pressure to backwash the filter element from inside to outside.
| Material | SS304, SS304L, SS316, SS316L, SS321, Duplex, Hastelloy, etc | ||||||
| OD Range | 19mm-2000mm | ||||||
| ID Range | 13mm-1981mm | ||||||
| Length Range | Up to 6000 mm | ||||||
| Slot Range | 20 micron to 3000 micron (Tolerance:+-5 micron) | ||||||
| Wedge Wire | 0.5x1.5 | 0.75x1.5 | 1x2 | 1.5*2 | 2x3 | 2*4 | 3*5 |
| Support Rod | 1.5x2.5 | 1.5x2.5 | 1.5x2.5 | 1.8*2.5 | 2x3 | 2x4 | 3x5 |
| 2x3 | 2x3 | 2x3 | 2x3 | 2x4 | 3x5 | 3x6 | |
| 3x5 | 3x6 | 3x10 | |||||
| 3x6 | 3x10 | 4x7 | |||||
| 3x10 | 4x7 | 5x6 | |||||
| 4x7 | 5x6 | 5x8 | |||||
| End Finishing | Thread fitting, Flange, Closed Plated, Resistance welded closed plate, Metal Ring, etc | ||||||
| Note | Customized According To Requirement | ||||||
Advantage:
Good filtering effect
High degree of automation
The flushing of raw materials shall not be polluted
There are many forms of flushing process
Our Johnson screen filter elements of petrochemical hydrogenation unit have been exported to more than 30 countries, mainly serving domestic and foreign refineries, chemical plants and other petrochemical enterprises.
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