Double multiphase separator for separation
of methyl ester and glycerine
Process Technology
The MPT multiphase
separators remove droplets
as small as
10 µm in
diameter from liquid mixtures and can be adapted
to
all operating conditions. Compact design,
maintenance-free
operation
and low cost of operation
are the hallmarks of these
systems.
Due to its unique operating
principle the multiphase
separator
operates without
loss of pressure and is also
suitable for the
separation of
heavy dispersed phases
and/or solids.
The separation efficiency
depends on the distance
between the
phase
separation profiles as well
as on the number and
configuration
of the profile
rows.
An intelligent modular system
permits customer-specific
solutions
for pressure
vessels and unpressurized
rectangular vessels of any
size and material.
Separation of organics
and water
Vessel with heating coil
Separation of hydrocarbons from
waste water
Environmental Engineering
The MPT multiphase
separator removes mineral
oils and
other organic light
liquids from water and
effluent, and even
from
spent acids and lyes.
If the liquids are
contaminated with solids,
the particles are
separated
in the gaps between the
rows of profiles and are
deposited on the vessel
bottom - the efficiency is maintained
in any case.
Used in combination with
an appropriate removal
system, the
multiphase
separators are also
employed as efficient solids
separators.
Separation of toluene from
water, Pressure vessel for
overpressure 0,5 bar
Separation of droplets and solids in a multiphase separator
The MPT multiphase separators make use of
- Gravity separation
- Droplet coalescence
- Flow effects
to separate dispersed phases from a liquid flow.
Separation is achieved at zero-pressure flow through rows of
special angular phase separation profiles.
The dispersed phase may consist of droplets and/or solid particles.
The specific gravity of the droplets may be lower or higher than that
of the main phase.
The sloping profile surfaces ensure that the separated phases run
off continuously. The interface is continuously renewed so that no
interface-active substances can accumulate.
The separation rate of the multiphase separator is defined by the
following parameters:
- Number of profile rows
- Distance between the phase separation profiles
- Wetting behaviour of the profile surface
- Geometry of the profiles
The separation feed can be defined on the basis of the sedimentation
time of a two-phase mixture. Multiphase separators can be designed
for sedimentation times as long as 240 min.
The resulting flow rate in the phase separation profiles is 5 to 20 mm/s
and the profile geometry is adapted to the flow rate.
For the dimensioning and calculation of a multiphase separator, all
relevant material and process data as well as the customer-specific requirements on the separation rate are taken into account.
The computer simulation yields:
- Material and geometry of the phase separation profiles
- Flow cross-section and flow rate
- Number and structure of the MPT modules
- Inflow distribution at inlet
- Outflow ratios
- Main dimensions of the MPT vessel
Pressure Vessels
For multiphase separators
with pressure vessels, round
MPT modules
are used so
that best use is made of the
existing flow cross-section.
A special handling system
facilitates the installation of
the MPT modules
so that
no function-specific adaptation
work is required upon
installation.
The edge sealing being
essential for the proper
functioning is ensured by
special profile seals (NBR,
FKM, PTFE), which also
serve to compensate
any
expansion of the plastic
phase separation profiles.
Each pressure vessel is
calculated and built in
compliance with the
country-specific regulations.
All known materials and
inner coatings can be used.
In many cases existing vessels/
separators may be upgraded
with fit-to-use MPT
modules without major effort.
MPT modules made of PVDF
Inner coating of ECTFE
Flow rate dependent on minimum and maximum flow speed.
Multiphase separator for the electroplating industry
Option: thermal insulation, integrated pump box.
Unpressurized Vessels
The multiphase separators
with rectangular,
unpressurized
vessels are
mostly used for effluent
purification. The separated
light phase forms a layer
on the surface and runs off
via height-
adjustable
channels.
The heavy phase is
collected and removed at
the bottom of
the vessel.
The standard series of
multiphase separators is
based on the
modular
dimensions of the MPT
modules.
For each application,
a
special calculation of the
flow and separation rates is
performed.
Just as special are the
customized systems we can
plan and build
to special
requirements.
The flow rate is based on the separation of all droplets
of d > 25 µm under standard conditions
( Δρ=100 kg/m³, main phase 1mPas )