Rhine Ruhr is
recognised as the
leading supplier of
range of removable
separator internals to
the Oil & Gas Industries
throughout the Asia
Its world class products
and services have
gained a reputation for
robust design, reliable performance and efficient technical support.
The installation base includes virtually every major Oil and Gas
Producer in the region and many others worldwide.
Rhine Ruhr’s leadership in the field is the result of well established,
tried and tested, industry standard design concepts with unique
mechanical enhancements to ensure effective and reliable
A continuous program of research and development testing in its
Melbourne pilot plant facility is used to evaluate equipment design
and measure key performance parameters.
Immiscible liquids such as oil and water can be
separated by gravity settling.
The residence time required to effect separation
depends both on system properties (such as density
difference) and the dispersed droplet size. In a typical
horizontal separation vessel with continuous flow,
increasing residence time for separation requires
Vessel size can be reduced by fitting devices which
favourably change the settling characteristics.
• Coalescer Packs such as mesh pads co-knitted
with wettable fibres can be installed to increase the
size of the dispersed liquid droplets and so reduce
• Parallel Plate Packs consist of metal plates which
form narrow flow channels, angled to drain away
coalesced liquid. This results in greatly reduced
vertical settling distance for the dispersed droplets
traveling between the plates before coalescing out
on the plate surface.
Rhine Ruhr design and manufacture a range of
devices to enhance separation.
These include Parallel Plate style devices (“Plate
Packs”) as well as Honeycomb style coalescers
(modified Dynapak structured packing). Depending
on overall vessel design and fluid properties, these
devices are capable of effective bulk removal of
dispersed droplets in the range of 20 to 50 microns.
Feed Inlet Devices
Feed inlets are engineered according to the nature of
• Feeds to KO Drums – either open nozzles or simple
inlet baffles are generally adequate.
• Bulk Separators – benefit from a mechanically
robust inlet device designed for vapour/liquid
disengagement as well as reducing momentum.
(Tangential inlet devices such as Cyclone or Vane
Style Configurations are the typical industry
Rhine Ruhr design and manufacture removable Vane
Inlet Devices to suit design conditions for most Bulk
Vessels designed for
the Separation of
immiscible fluids may be
categorized as follows:
• Knock Out Drums –
normally vertical vessels
designed to separate
entrained liquid droplets
from a vapour stream. Typical
internals are either Vertical Flow
Knitted Wire Mesh Mist Eliminators or
Vane Type Mist Eliminators configured for
• 2-phase Vapour/Liquid Separators – either
vertical or horizontal vessels, designed to perform
bulk separation from a 2-phase feed. Typically, as
well as requiring Mist Eliminators for liquid droplet
separation (as for KO Drums described above), an
inlet device may be installed at the feed inlet to
enhance vapour/liquid disengagement.
• 3-phase Separators – generally horizontal
vessels are preferred in order to provide optimum
conditions for gravity settling of the immiscible
liquid phases. The major difference
from a 2-phase Separator
is the addition of an
outlet or overflow
baffle to decant
off the light
into a separate
as a Plate Pack can
also be included to
• 2-phase Liquid/Liquid Separators – differ from 3-phase Separators in that they
have no provision or vapour flow or vapour/liquid
disengagement. Since they are frequently designed
to separate a dispersed liquid from a single
continuous phase, a collection boot is more space
efficient than an overflow weir.
A wide range of Mist Elimination devices are available
depending upon the degree of separation required.
Devices used for removal of droplets in
the range of 5 microns and above
use inertial impaction.
Pads of knitted wire
mesh are cost effective
and very efficient in
the range of 5 to 10
Well designed Vanes
have higher capacity
but will remove droplets
only as small as 10 to 20
microns, depending upon
physical properties and service
Rhine Ruhr has developed a complete range of Vane
or Chevron style Droplet Separators to suit most Mist
The range includes:
• VC style for vertical flow and high particulate
• HC style for horizontal flow
• DHC (double pocket) high efficiency style
• HC and DHC style Vanes are normally incorporated
into “Vane Packs”, complete with drainage sump and
downpipes, to avoid liquid bypass and re-entrainment.