JONELL SYSTEMS™
GAS COALESCING
FILTERS
Making the world safer, healthier and more productive.
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 the
causing foaming and a loss of fluids leading to higher costs burner tips that result in increased emissions and decreased
of chemical additives. efficiencies.
Compressors from dirty fuel gas resulting in premature wear Metering Stations and sensitive ultrasonic equipment from
of internal components. excessive contamination to avoid false readings.
Gas Turbines from small particulate and droplets that Molecular Sieves from lube oils causing problems during
contaminate internal parts causing wear and ultimately, regeneration cycles necessitating replacement of mol sieve
costly repairs. bed.
Heat Exchangers from contamination of tubes that gradually Propane Refrigeration Systems from lube oil contamination
reduces exchanger efficiency. 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.
2 | Jonell Systems - Gas Coalescing Filters www.jonellsystems.com
UNDERSTANDING GAS LIQUID COALESCING
How it Works
Liquid aerosol in the gas stream is formed via three
mechanisms: GAS OUTLET
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
In each case, the aim is to maximize the probability that
a droplet will collide with media fibers. A crucial factor GAS INLET
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.
Consult our factory for design conditions and dimensional
layout.
Two Styles of Coalescing Media:
1. Pleated - multiple pleats to maximize surface area
2. Depth - An engineered gradient matrix of specified
thickness to maximize contaminant interaction and
coalescing of shear sensitive aerosols.
You can rely on Jonell Systems to recommend the most
suitable style of element for your application.
www.jonellsystems.com 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
Element Stage SECTION
The element stage of the Coalescer is fitted with 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,
LIQUID
increasing the probability of collision with other droplets and allowing sufficient COLLECTION
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. Element spacing
and riser design are also critical to ensuring droplet separation after initial capture.
KNOCKOUT
In order to prevent channeling through the media, a minimum distance between SECTION
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.
Typical Model Number
G R A C 1 C 27 F 2 C A N
Jonell Closure Style Qty of Pressure Inlet/Outlet Internal Cart. Options
Systems A Flat swing bolt Elements Rating Size (inch) Size Assigned
Series B Domed swing bolt Number of 27 275 psi 2 12 3½" OD x length by Jonell
Gas D RFWN flange top Elements 74 740 psi 3 14 A 12" D 36" Systems
Housings 144 1440 psi 4 16 C 24" to indicate
F RFSO flange top specials
S Screw top 6 18 4½" OD x length
Y Yoke or internal 8 20 F 12" J 36"
door 10 24 H 24"
5½" OD x length
P 36"
Process Housing ASME Inlet/Outlet Internal O-Ring Material
Configuration Material Code Style Material N Buna-N
R Vertical C Carbon C ASME U F RFSO A 304 SS V Viton
Reverse Flow Steel stamp L RFLWN C Carbon Steel E EPDM
T Vertical Small U 316SS N No U U 316 SS S Teflon encapsulated
Volume N FNPT
Wetted stamp silicon
Reverse flow W RFWN
A 304SS T Teflon encapsulated
Wetted Viton
F Flat Gasket
4 | Jonell Systems - Gas Coalescing Filters www.jonellsystems.com
Element Selection
Jonell Systems patent pending TRI-SHiELD JRGC series Jonell Systems coalescing elements are available in various
filters come standard with vertical coalescers. This high standard and custom sizes, pleated and depth configurations
efficiency media delivers up to 15X fewer contaminants to fit virtually every application.
downstream of the filtration solution.
They are engineered and manufactured in standard
Also Available:
fiberglass, micro-glass and polymeric media to ensure
JPMG Micro-fiberglass media designed to efficiently
compatibility with most process.
coalesce liquid droplets and remove solid particulate down
to 0.3 microns. Plated steel and caps and cores are joined
mechanically to ensure high integrity of the element. There
is a polyester outer drain layer to facilitate uniform drainage JRGC SERIES
of liquids.
Depth Style Polyester
Material of Construction
Also available in Pleated microglass JPMG and depth Depth Style Polypropylene
fiberglass JMG for applications where a depth polyester is not 240°F (Polyester)
the correct solution for the application. Maximum Temperature
180ºF (Polypropylene)
Minimum Temperature -60°F
Change Out Differential 12-15 PSID
Burst Pressure >75 PSID
Available Micron Rating 0.3 Microns
GASKET 312, 324, 336, 348
Standard Sizes
TOP END CAP 512, 524, 536, 548
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
FILTER MEDIA Standard Sizes 312, 318, 324, 336, 536
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
STEEL
END CAPS Available Micron Rating 0.3 Microns
Standard Sizes 312, 318, 324, 336, 536
www.jonellsystems.com Jonell Systems - Gas Coalescing Filters | 5
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.
Scan QR Code to find our locations
+ 1 844 GOFILTR
jonellsalesinfo@filtrationgroup.com
www.jonellsystems.com
10062020
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