SERVOTOUGH
Servomex has the complete solution to
achieve a highly sensitive measurement in
hot, dusty environments.
USING THE SERVOTOUGH Laser 3 Plus
IN THE AMMONIA SLIP PROCESS
COMBUSTION PROCESSES
PRODUCE HARMFUL NO X
EMISSIONS. CONTROLLING THESE
EMISSIONS MEANS ADDING
AMMONIA TO THE FLUE GAS IN
ORDER TO LOWER NO X
EXCESS NOx
Laser fitted into
the process stack
The Laser 3 Plus uses the brightest laser
beam of any TDL gas analyzer, strong
enough to traverse dark and dirty process
streams. The unique optics minimize
the light loss experienced by other TDL
products. This performance is enhanced
by the installation of Servomex’s fixed
pipe solution, which minimizes contact
with the sample stream, by deflecting
dust around the fixed pipe, protecting
the laser beam.
SAMPLE FLOW
SAMPLE FLOW
Air pressure applied
from both ends
EXCESS AMMONIA LEADING TO
AMMONIUM BISULFATE BUILD UP
The Laser 3 P lus solution is not affected by
these issues. Installed directly into the
process stack, close to the catalyst, the
Laser 3 Plus gives an instantaneous signal
that enables a fast, responsive measurement.
AMMONIA SLIP
The Laser 3 Plus solution has a unique
way to resolve mechanical movement,
allowing for process movement and
thermal expansion while keeping
maximum beam alignment. This ensures it
maintains true measurement stability.
Inside the
process
It delivers long intervals between
maintenance and calibration – making it
an ideal system where analyzer availability,
uptime or reliability is critical. You can fit
it with the confidence and peace of mind
that Servomex expertise provides.
While traditional TDL analysis signal
lock uses less stable water lines, the
Laser 3 Plus uses Servomex’s unique ‘line
lock’ cuvette system, which provides an
absolute signal reference for ammonia.
This means it never loses its lock on the
ammonia reading, providing the most
stable measurement at all times.
Servomex’s total solution for ammonia slip is supported by our global systems
engineering capability, which enables us to manufacture a complete analyzer
system optimized for each specific customer process. Our global service
network ensures your process is protected at all times, for complete peace of
mind, while training packages are also available for your in-house teams.
1. Combustion processes produce harmful 2. Excess ammonia can contaminate 3. So, it is important to control the level of
NOx emissions, which are controlled by
using ammonia to lower NOx output. If
the process is overdosed with ammonia,
this is called ammonia slip. the flue gas, reduce the value of the fly
ash, and causes a damaging build-up of
ammonium bisulfate in the catalyst. ammonia slip between 2-3 parts per million
ammonia to ensure NOx reduction and
prevent acid and particulate formation
associated with excess ammonia.
Tunable Diode Laser (TDL) gas analyzers have taken over from extractive systems as the
industry standard for ammonia slip monitoring.
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ENSURE A FULL LIFETIME OF PERFORMANCE
THE SERVOTOUGH Laser 3 Plus FROM SERVOMEX.
THE TUNABLE DIODE LASER SOLUTION SPECIFICALLY
DESIGNED TO HANDLE AMMONIA SLIP PROCESSES.
COMPACT SIZE, BIG PERFORMANCE.
As there is no physical interaction with the process, TDL can offer a highly stable, fast
and reliable measurement. Yet TDL analyzers can struggle in dust-heavy DeNOx
environments with drift, and lose lock on the process signal, returning incorrect
measurements due to light scatter, or lose measurement, due to mechanical movements.
They can require frequent recalibration and maintenance, particularly in hot, dusty
environments that block insertion tubes and contaminate optics.
Rhys Jenkins - Photometric Product Manager at Servomex. Email: rjenkins@servomex.com
See the ammonia slip solution at:
Standard laser system
servomex.com/ammoniaslip-l3plus
Visit s ervomex.com/service or contact your local business center today
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