Data Sheet FCSEPRASENb

SepraSol TM Plus
Liquid/Gas Coalescers
Introduction
The SepraSol Plus Liquid/Gas Coalescer removes
liquids and solids from high flow gas streams that
contain high concentrations of liquids.
Pall Corporation’s staff of research scientists
andengineers have designed these coalescers thatchange the way gas streams are conditioned.
The SepraSol Plus media can process several times
moreliquid per unit area of media than conventional
media and often eliminates the need for upstream bulk
separation equipment such as mist eliminators andvane separators.
The SepraSol Plus media is supplied in a large flow,high performance 6-inch diameter cartridge that caneconomically treat large gas flows in applications that
require a high degree of protection from both solids
and liquids including:• Protecting compressors and turbines• Removing lubrication oil, water, and compressor
wear products from effluent gas streams• Removing liquid aerosols from gases fed to amine
sweetening and dehydration units to prevent foaming
problems• Protecting desiccant and catalyst beds
• Minimizing solution losses downstream of gas
purification process units• Cleaning dirty fuel gas to protect low Nox burners
and fuel injection nozzles• Controlling injection well plugging during gas flooding

Description
Liquid Influent Concentration –the key to coalescer performance
One major reason why coalescers do not function
properly in the field is because of an underestimation of
the liquid influent concentration to the coalescer. Simply
stated, the more liquid charged to a coalescer system,
the more coalescer media required. If the coalescer ischallenged with too much liquid, significant quantities ofliquid will become re-entrained in the effluent gas, anddownstream equipment problems will continue to occur.

The SepraSol Plus media is able to handle high levelsof liquid per unit area and requires significantly fewer
cartridges to remove liquid and solids from gases. This is
illustrated in Figure 1, which compares the SepraSol Plus
liquid/gas coalescer with a conventional media pack. As theliquid load is increased, the number of cartridges required
to remove the liquid also increases.
With conventional media packing, the cartridge requirement
may become uneconomical once the liquid concentration
gets above a few hundred ppmw. The SepraSol Plus liquid/gas coalescer economically removes liquids from gas
streams with high liquid loading, often eliminating the needfor an upstream bulk separator.

Features, Advantages and Benefits of the Pall SepraSol Plus Liquid/Gas Coalescers
Features

Advantages

Benefits

SepraSol Plus media pack• High liquid removal per unit area
• Fewer elements needed• Minimized vessel diameter• Reduced need for an upstream bulk
separator

High-capacity large diameter
element• Fewer elements needed for a given gas flow rate
• Minimized vessel diameter• Reduced capital and installation costs• Smaller space required for installation

Patented Oleophobic/Hydrophobic
media treatment• Quicker liquid drainage• Lower saturated pressure drop
• Quicker recovery from liquid slugs• Minimized vessel diameter due to less restrictions 		
on annual velocity• Reduced capital and operating costs• Improved product quality and consistency

High-effective filtration area

• Fewer element changeouts needed• High solids removal efficiency• Lower operating and maintenance costs

High-efficiency media and equipment• Consistently high liquid removal efficiency• Reduced liquid losses• Optimum protection of downstream equipment• Lower operating and maintenance costs
and availability• Reduced capital and installation costs

Coalescer Technical Information

Oleophobic/hydrophobic Treatment

The SepraSol Plus Liquid/Gas Coalescer –no longer just for polishing
Before the development of the SepraSol Plus liquid/gas
coalescer, high-efficiency liquid/gas coalescers were used
specifically for polishing.

All of Pall’s SepraSol and SepraSol Plus liquid/gas
coalescers receive the patented oleophobic/hydrophobictreatment. Chemically treating the coalescer lowers thesurface energy of the media and promotes rapid drainageof the coalesced liquids. This significantly increases theamount of liquid per square foot of media the coalescer
can handle.

Generally, if the liquid influent concentration wasgreaterthan a few hundred ppmw, a bulk separator suchas a knock-out drum, mist eliminator, or vane separator
was required upstream of the coalescer to remove large
liquid droplets and a coalescer would be used to remove
the small droplets (less than 5 micron).

Added benefits to the chemical treatment include
lowersaturated pressure drop, which saves operating
costs and rapid recovery from liquid slugs.
Figure 2 shows the effect of the benefits of boththeoleophobic/hydrophobic treatment and the SepraSol
Plus liquid/gas coalescer compared to a coalescer withconventional packing and no chemical treatment.

As demonstrated below in Figure 1, the SepraSol Plus
liquid/gas coalescer can handle high liquid loads, often
eliminating the need for upstream bulk removal equipment.
In addition to the benefits of our media, the SepraSol Plus
liquid/gas coalescer also includes features that have been
Pall coalescer standards for many years.

Note: under the process conditions stated, the SepraSol
Plus liquid/gas coalescer with chemical treatment
requires a significantly smaller assembly under maximum
liquid loading conditions than the untreated coalescer
with the conventional pack design. Assembly diameter isdirectly related to the overall installation cost.

Liquid Loading Comparison
400

SepraSol PlusMedia Pack-Treated

350Number of Cartridges Required

Figure 1
Cartridge Requirement
Comparison of SepraSol Plus
Liquid/Gas Coalescer Media Packversus Untreated Conventional
Media Pack322
300

Conventional
Media Pack-Untreated250
Conditions:
Natural gas with liquidcondensate 4.25
MMSCMD flow, 150
MMSCFD, 51.7 barg,
750 psig pressure

200
161
150
100

0818150
9450

1751003392004121500

Liquid Loading (ppm wt.)

1000

2000

Figure 2
Assembly Diameter
Comparison of SepraSol PlusMedia Pack versus Untreated
Conventional Media Pack

Minimum ID of Assembly cm (inches)

508 (200)
175

SepraSol PlusMedia Pack-Treated
Conventional
Media Pack-Untreated381 (150)

102254 (100)56127 (50)544135333276766358

Conditions:
Natural gas with liquidcondensate 4.25
MMSCMD flow, 150
MMSCFD, 51.7 barg,
750 psig pressure

050

100

200

500

1000

2000

Liquid Loading (ppm wt.)

Technical Information

Materials of Construction

Nominal Cartridge Dimensions
Part Number

CS604LGH13 (single open end)
CS604LGBH13* (single open end)
CS604LGDH13 (double open end)
CS604LGBDH13* (double open end)

Outer Diameter

152.4 mm (6”)

Length1016 mm (40”)

Surface Area

2.6m 2 (28 ft.2)• Resin bonded glass fiber SepraSol Plus coalescer
media designed in a pack to handle large quantities
of liquid• Polymeric outer drainage layer to prevent liquid
re-entrainment• Oleophobic/hydrophobic treatment to improve liquiddrainage, protect from liquid slugs and minimize
saturated pressure drop
• Stainless steel metal support.

* Amine compatible

Performance Specification
Solid Removal Rating*99.7 % @ ≥ 0.3μm

Liquid Removal Ratings.01ppm downstream liquids (LASE)**
1 ppb downstream liquids (CAGI)***
99.999 % efficient at 0.3 micron (DOP)****Temperature Rating

82 ºC (180 ºF)
65 ºC (150 ºF) with water

Clean and SaturatedPressure Drop

Sized to your specification* Per sodium chloride challenge test** Per the Pall Liquid Aerosol Separation Efficiency (LASE) Test*** Per the modified ANSI/CAGI-400-1999 test procedure**** Per the Di-Octyl Phthalate (DOP) test using a monodisperse 0.3 micron aerosol

Pall Industrial Manufacturing
25 Harbor Park Drive
Port Washington, NY 11050+1 516 484 3600
telephone+1 800 289 7255
toll free US
Portsmouth - UK
+44 (0)23 9233 8000
+44 (0)23 9233 8811
www.pall.com/contact

telephonefax

Visit us on the Web at www.pall.com
Pall Corporation has offices and plants throughout the world. For Pall representatives in your area, please go towww.pall.com/contact
Because of technological developments related to the products, systems, and/or services described herein, the dataand procedures are subject to change without notice. Please consult your Pall representative or visit www.pall.com
to verify that this information remains valid.
© Copyright 2020, Pall Corporation. Pall,, and SepraSol are trademarks of Pall Corporation.
® Indicates a trademark registered in the USA. Better Lives. Better Planet. and Filtration. Separation. Solution.SM
are service marks of Pall Corporation.

FCSEPRASENb

Produced in the UK

September 2020