Is demister pad the same as mist eliminator?

10 Jun.,2024

 

Demister Pad and How to Work, Why to Use Wire Mesh ...

Demister Pad

What is demister pad?

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Demister pad, also known as mist eliminator, is essential in many process operations for the removal of entrained material in vapor flows. Demister pads provide a wide range of solutions suitable for any application.

It is made of knitted wire mesh forms primary parts for the mist collection systems. We offer a full line of mist collectors including continuous duty centrifugal.

Demister pads or collectors are used to collect the light mist and swarf. A number of design layouts and filter choices are provided for both flexibility and expandability. It consists of pad sets, or a variety of pleated panel designs. The filter media is normally knitted wire mesh made of metal or synthetic fiber.

Operation of a mist eliminator is based on having a large number of obstacles intercepting entrained droplets in a vapor flow. This large number of obstacles must provide a minimum drop in pressure over the removal system.

Demister pads are fabricated from knitted materials with interlocking asymmetrical loops of metal or plastic with typical diameters being 0.1 - 0.3 mm. By careful choice of wire diameter, we have produced demisters with extremely high free volumes (typically 98 - 99%) along with very high removal efficiency and low pressure drop.

How a Mist Eliminator Works

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Elimination of Mist Eliminator is dependent on droplet size:5 - 9 microns 99%>10 microns 99.5% most of the weight of entrained mists tend to be associated with the larger mist particles (larger than 5 - 10 μm) thus providing greater that 99.99% weight removal.

Why use Demister Pad/Mist Eliminators

Our products are known among our customers for good durability. We have also a good track record for having negligible annual production errors for the past few years. With good experience, you can be sure to get the best quality and durability for mist eliminators.

Understanding Mist Eliminators/ Demister Pads

Mist removal, or elimination, is a critical process in many industrial applications. Petrochemical processing, environmental protection, and refinery operations all rely on the separation of liquid droplets from vapor streams to maintain and protect equipment, filter pollution, and operate at peak performance. Mist eliminators, also referred to as demister pads or wire mesh pads help achieve this filtration reliably, efficiently, and with minimal maintenance. They are typically fitted just below tank outlets and can be installed either vertically or horizontally, depending on the configuration of the unit.

 

As its name implies, mist eliminators remove moisture from gas streams. Vapor carries mist as it rises, and while gas is free to pass through knitted mesh unobstructed, individual mist droplets become trapped. Droplets grow in size as moisture accumulates, eventually causing the heaviest ones to fall back into the pool of liquid below. This coalescing process prevents even small drops of liquid from rising to the top of the tank. 

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