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Precision filter series


|Product introduction

During petroleum refinery and hydrocarbon process, medium and products will inevitably be mixed with water. The existence of water can have a harmful effect on technical equipment and the final quality of products:
• Poison and fail the catalyst
• Hazard subsequent process and equality of subsequent products
• Hazard equipment
Our company developed advanced liquid-liquid coalescence separator with most liquid-liquid coalescence separating technology and special medium and structure. This separator is not only effective, but also economical, satisfying different complicated technology and conditions.
  Gravity Settling Method Drying Adsorption Method Traditional Fiber Method BCB Coalescing
Ability of dehydration Low High Medium High
Efficiency of dehydration Low Low Medium High
Influence of interfacial tension High Low High Low
Influence of surfactant None None Large Low
Influence of temperature change High High Medium Low
Operation and maintenance costs Low High Medium Low
Routine maintenance workload Low High Medium Low
Equipment size and footprint Large Large Medium Low

|product mix

|Product technical parameters

Main Technical Parameter:
• Initial pressure difference < 0.03MPa
• Dehydration ability: maximum proportion of water is 10%
• Dirt holding capacity: 4g/L
• Maximum working pressure difference: 0.1MPa
• Applicable medium: Carbon-chlorine hydrocarbons, like aerial fuels, petro, diesel fuel, kerosene, liquefied petroleum, petroleum coke, naphtha, benzene, toluene, xylene, cumene, polypropylene benzene, cyclohexane, isopropanol, cyclohexanol, cyclohexanone, etc.
1. Filtration and dehydration of ultimate products
2. Removal of alkali after alkali treatment
3. Filtration and dehydration of medium during catalysis and cracking to avoid catalyst being poisonous
4.Separation of water and amine out of liquefied petroleum
Working principle:
There are two kinds of cartridges in liquid-liquid coalescing separator ---- coalescing cartridge and separating cartridge. After flowing through the separator, medium will have been filtered, coalesced, settled and separated, to remove water, alkali and soluble organic acid salts.
First the medium flows through coalescing cartridge, which can filter and coalesce water. The innermost layer of coalescing cartridge is high precision filter, which can intercept particle impurities of the medium, especially material which can stabilize emulsified state like iron oxide and iron sulfide, being beneficial to subsequent breaking and coalescence. Then the medium enters breaking coalescence layer. This layer will break the medium, coalesce tiny free water of the medium and condense the medium into droplets on the face. Large droplets go down to the bottom of collecting tank while smaller ones will flow to separating cartridge with medium. With great hydrophobic properties, separating cartridge will only let the medium flow through it without. Smaller droplets will be intercepted completely. Just like the right picture shows:
Liquid-liquid coalescence separator is a metal crust with two groups of different cartridges, level meter, pressure difference meter, release valve, sewage valve, online sampling connector. Basic structure of liquid-liquid coalescence separator is shown below.
Technical Process:
1. In order to prolong the life of coalescence cartridge and improve dehydration efficiency of it, the installation of a prefilter before the coalescence separator is recommended to filter larger solid particle, iron sulfide and iron oxide.
2. Bypass is designed on every equipment, to guarantee system working normally while cartridge is being replaced.
3. Outfall is at the bottom of every equipment, to discharge the sewage and recycle medium.
Standard sizes Appearance size Nominal opening diameter

|Installation and maintenance

1, the core component of the precision filter is the filter of the filter, the filter is easy to damage the parts, need special protection.
2, the precision filter for a long time to work, will cut a certain amount of impurities, this will work when the rate decreased, so it must be cleaned regularly, but also to clean the filter.
3, in the cleaning process to pay special attention to the cleaning of the filter filter, do not deform or damage, otherwise it will lead to a reduction of filter precision, not to the production requirements.
4, if the filter is found to be deformed or damaged, must be replaced immediately.
5, some precision filter, can not be used repeatedly, such as bag filter, polypropylene filter, etc..

|Order notice

Order shall be determined by the following parameters: diameter; work pressure; (3) material; (4) flange standard; dielectric; the operating pressure; to give you provide suitable products.

About Kaifan

To achieve success with quality products;
The pride of the company rests in its quality;
In the pursuit of excellence we discard the mediocre. No expenses spared, with rigorous development;
With standardized quality control and systematic quality assurance, this is Kaifan’s promise;
The world’s end is no obstacle to Kaifan;
Kaifan, in cooperation with its local partners, manufactures products of impeccable quality...

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