What is the Filtering Pack

 The Filtering pack is a system whose task is to remove droplets dragged from flows of steam, is the product most common for this type of operation.

The Filtering Pack properly used and under certain conditions may reduce the liquid carried by a factor of up to one hundred times more than a standard unit, ore reducing losses by 50% or more, or increase the capacity of the factors up to three or four times the norm.

The Filtering Pack is built exclusively in metal or plastic mesh, is available in any shape and size.

The Filtering Pack can reduce the residence time required for separate drops of liquid of various sizes thus reducing the volume and cost associated equipment separation. 

The Filtering Pack are used in areas where the quality of steam is important in the field of liquid involved in particular when the costs of separation are high (for example, high-pressure systems), or where the saving of space or weight are convenient.

How does a Filtering Pack works

The droplets are removed from the flow of steam through three stages: collision and adherence to a target, coalescence into larger droplets and drainage.

When the steam carrying the droplets of liquid or mist passes through the Filtering Pack, the liquid can easily pass, but the droplets of liquid, having more inertia, meet the spongy mass and are hold back from this strongly. When several droplets gather together, increasing volume and weight then fall freely. 

in this way the core product, steam pure, doesn't contain liquid.

Where you can use a Filtering Pack

In the towers of refining vacuum

The Filtering Pack can make working with more flow, improving the quality of diesel fuel and reducing the percentage of raw. The diesel improved, having a lower percentage of carbon, asphalt, metal catalysts pollutants, increase the capacity of craking due to low weight entering the generator, providing a greater yield gasoline and increasing the period of operational capacity of catalysts.

In the towers of lubricating oil refining

Increased capacity, yield and purity of the product that translates into practice with savings of solvent and lands bleaching for refining.

Distillation plants

Increase in benefits in facilities for treatment of:

 - Vegetable oil

 - Grease acids

 - Thallium

 - Glycerine

 - Lubricating Oils

 - Naphtha

 - Propane obtained by asphalt

 - Products organic intermediate

 - Chemicals handled in small quantities

Evaporators

The Filtering Pack eliminates the export of a considerable part of the product while maintaining a high quality condensate destined for the kettles of water or earmarked for other uses.

Dehumidifiers Filters

The Filtering Pack provides water vapour dried and cleaned with a balance of particles less than 0.5 parts per million.

Assorber

The Filtering Pack performs the complete removal of liquid particles dragged by gas oil and glycol solutions and amine, and provides gas clean and dry. It improves the efficiency of the plant.

Filters precipitators, de-tarring, containers of separation

The Filtering Pack reduces operating costs because:

 - Removes water from air and oil and gas

 - Retrieves fatty acids from water vapour

 - Retrieves gas oil previously lost in the vacuum system

 - Reduces maintenance costs for compressors

 - Decrease the size of containers destined for filtration

 - Elimination of problems related air pollution

 - Elimination of unloaders condensation in radio transmitters and distribution of gas

Materials employed

AISI 304 aqueous solutions, nitric acid, treatment of raw, splitting oil

AISI 316  grease acids, treatment of raw containing naphthenic acids and other corrosive acids

Monel caustic soda or other alkalis, acids diluted

Alloys and special steels: you can produce the filter pack with other qualities of wire such as:

Inconel, Copper, Aluminium, Hastelloy, Titanium, etc..

In Filtering Pack the materials used are of higher quality. The wire is calibrated and polished to allow drainage of the fluid more quickly. The stainless steel is fully annealed to resist thermal variations. Both the sponge metal grilles that support are constructed with care in order to eliminate possible leakage of steam.

The design of Filtering Pack and the choice between different types is facilitated if they are provided the following data (when possible):

 - Speed of steam

 - Density of steam

 - Density of liquid

 - Viscosity of the liquid

 - Surface tension

 - Size and quantity of liquid particles in suspension or the description of the process or system

 - Temperature and pressure

 - Materials used

 - Performance demands

What data tell us to achieve a Filtering Pack

In implementing the Filtering Pack is always better to specify the following information:

 - Use or application

 - Type of material

 - The form

 - You need a Filtering Pack with or without grid

 - The size

 - The density

 - The type of assembly over-head or under-head

 - If the new Filtering Pack is a replacement of an existing Filtering Pack