JONELL SYSTEMS

GAS COALESCING
FILTERS
Flange-To-Flange Solutions™

JONELL SYSTEMS
  Jonell Systems Gas Coalescing Filters | 1
 UNDERSTANDING THE ROLE OF COALESCERS

Since the early 1980's, Gas-Liquid Coalescers have played an integral role in the Oil
& Gas industry. Sometimes referred to as Reverse Flow Coalescers, this vessel is
designed to remove moderate amounts of liquid aerosols from natural gas streams.
They are also relied on to protect sensitive equipment.

BENEFITS OF GAS/LIQUID COALESCERS:

PRODUCTIVITY SAVINGS ECO-FRIENDLY EQUIPMENT LIFESPAN

Increases equipment uptime Reduces maintenance cost Decreases energy consumption Extends equipment changeouts

Gas Liquid Coalescers Protect

Essential Equipment Including:

Amine Plants & Glycol Absorbers from contamination Low NOx Burners and Gas Fired Heaters from fouling
causing foaming and a loss of fluids leading to higher the burner tips that result in increased emissions and
costs of chemical additives. decreased efficiencies.

Compressors from dirty fuel gas resulting in premature Metering Stations and sensitive ultrasonic equipment
wear of internal components. from excessive contamination to avoid false readings.

Gas Turbines from small particulate and droplets Molecular Sieves from lube oils causing problems
that contaminate internal parts causing wear and during regeneration cycles necessitating replacement
ultimately, costly repairs. of mol sieve bed.

Heat Exchangers from contamination of tubes that Propane Refrigeration Systems from lube oil
gradually reduces exchanger efficiency. contamination from compressors which must be
removed from propane streams to meet specifications.

Consider this:

Coalescer's typically filter contaminants that are much finer than those removed by other filtration equipment.
These contaminants may contain:
• Low surface tension aerosols such as synthetic lube oils & hydrocarbons.
• Shear sensitive corrosion by-products such as iron sulfide & iron oxide.
• Pipeline & plant chemicals that are difficult to remove.

We offer a complete line of coalescing filters that can be fully customized to suit your specific needs including
the patent pending TRI-SHiELD media.

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UNDERSTANDING GAS LIQUID COALESCING
How it Works GAS OUTLET
Liquid aerosol in the gas stream is formed via three
mechanisms:

1. Entrainment - the movement of free liquid into

a gas stream
2. Condensation - vapor turns into liquid
3. Atomization - the shearing of droplets

In order to separate small droplets, they are

coalesced into much larger droplets and liquid
streams. To coalesce means to 'grow', and a gas
coalescer facilitates droplet to droplet interaction and
agglomeration by means of trapping entrained liquids
within the matrix of the cartridge media.

Three Primary Mechanisms of Coalescing:

1. Direct Interception
2. Inertial Impaction
3. Brownian Motion and Diffusion GAS INLET

In each case, the aim is to maximize the probability

that a droplet will collide with media fibers. A crucial
factor of coalescing is the consistency of filter media
including pore size, fiber diameter and its uniform
distribution. Jonell Systems engineered media and strict
quality control ensures maximum performance for your
application.
Jonell Systems Series JVCS Standard
Fuel Gas Coalescing Filters

Our JVCS line of gas coalescers offer a standard, low

cost, high efficiency alternative for all your fuel gas
filtration needs including applications with low liquid
loading and gas volumes. The vessels are designed
to ASME code and utilize Jonell Systems high-
efficiency coalescing elements in a variety of lengths
for maximum flexibility. The elbow-inlet design allows
for a single stage of controls.

Three types of standard units are available:

• JVCS-2-318 with 2" inlet/outlet nozzles

and 318 style cartridge
Two Styles of Coalescing Media: • JVCS-2-336 with 2" inlet/outlet nozzles
and 336 style cartridge
1. Pleated - multiple pleats to maximize surface area
• JVCS-3-536 with 3" inlet/outlet nozzles
2. Depth - An engineered gradient tube of specified
and 536 style cartridge
thickness to maximize contaminant interaction and
coalescing of shear sensitive aerosols.
Consult our factory for design conditions and
You can rely on Jonell Systems to recommend the most dimensional layout.
suitable style of element for your application.

  Jonell Systems Gas Coalescing Filters | 3

 Coalescer Design
A correctly designed Gas Coalescer consists of two stages: the Knockout Stage and the Element Stage. Each stage
is sized for maximum liquid removal and necessitates a set of liquid controls.

Knockout Stage
As natural gas enters a properly designed Coalescer
and turns upward, its velocity is reduced, allowing
larger droplets to fall out due to gravity. This
compartment also stores the liquids below the high
velocity zone protecting the cartridges from flooding.
In applications with higher liquid loads, specialized
inlet technologies or bulk separator technologies can
be employed in order to reduce the liquid load to the
elements.

Element Stage
ELEMENT
The element stage of the Coalescer is fitted with SECTION
Jonell Systems TRI-SHiELD (JRGC Series) gradient
depth polyester media or the Micro-LOK (JPMG)
series pleated cartridges made from micro-fiber glass
coalescing media. The direction of flow is inside to
out, resulting in a reduction in gas velocity through the
media. This reduction increases the droplet residence
time and reduces the drag forces, increasing the LIQUID
probability of collision with other droplets and allowing COLLECTION
sufficient time for drainage. The annular velocity of gas
after exiting the media is also crucial to prevent liquid
lift-off from the elements.

Jonell Systems coalescing elements are built with

a drain layer which enhances liquid removal while
providing a calm interface between liquid and gas. KNOCKOUT
Element spacing and riser design are also critical to SECTION
ensuring droplet separation after initial capture.

In order to prevent channeling through the media, a

minimum distance between the top of the elements
and the outlet nozzle must be calculated. Positive
element seal, riser support, outlet baffle and liquid
holding capacity are other essential aspects of Gas
Coalescer design.

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Element Selection
Jonell Systems patent pending TRI-SHiELD JRGC Jonell Systems coalescing elements are available
series filters come standard with vertical coalescers. in various standard and custom sizes, pleated
This high efficiency media delivers up to 15X fewer and depth configurations to fit virtually every
contaminants downstream of the filtration solution. application. They are engineered and manufactured
in standard fiberglass, micro-glass and polymeric
Also Available: media to ensure compatibility with most process.
JPMG Micro-fiberglass media designed to efficiently
coalesce liquid droplets and remove solid particulate
JRGC SERIES
down to 0.3 microns. Plated steel and caps and
cores are joined mechanically to ensure high integrity Depth Style Polyester
Material of Construction
of the element. There is a polyester outer drain layer Depth Style Polypropylene
to facilitate uniform drainage of liquids. 240°F (Polyester)
Maximum Temperature
180ºF (Polypropylene)
Also available in Pleated microglass JPMG and
Minimum Temperature -60°F
depth fiberglass JMG for applications where a
depth polyester is not the correct solution for the Change Out Differential 12-15 PSID
application. Burst Pressure >75 PSID

Available Micron Rating 0.3 Microns

GASKET 312, 324, 336, 348

Standard Sizes
512, 524, 536, 548
TOP END CAP

JPMG SERIES
LOUVERED Material of Construction Pleated Micro Fiberglass
SUPPORT CORE
Maximum Temperature 300°F

Minimum Temperature -60°F

Change Out Differential 12-15 PSID

Burst Pressure >75 PSID

Available Micron Rating 0.3 Microns

Standard Sizes 312, 318, 324, 336, 536

FILTER MEDIA

JMG SERIES
Material of Construction Micro Fiberglass

Maximum Temperature 275°F

DRAIN LAYER Minimum Temperature -60°F

Change Out Differential 12-15 PSID

Burst Pressure >75 PSID

Available Micron Rating 0.3 Microns

STEEL
Standard Sizes 312, 318, 324, 336, 536
END CAPS

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 ABOUT US

Jonell Systems, a Filtration Group brand, partners with oil, gas, refining, chemical and power companies worldwide to address
end to end filtration challenges to improve process safety, reliability, productivity and ultimately business profitability. We
manufacture complete systems, vessels and a wide range of cartridges to optimize your filtration processes. This coupled with
our technical expertise, allows us to solve even the most challenging filtration applications.

As a part of Filtration Group, the world’s fastest growing filtration company, it is our mission to make the world safer, healthier
and more productive.

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+ 1 844 GOFILTR
jonellsalesinfo@filtrationgroup.com
www.jonellsystems.com
12MAY2020

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