36
Air poLLUTion ConTroL
Regulatory enforcement drives
continuous emission monitors
he worldwide market for continuous technologies, leading provider Quantitech
Tighter legal and
emission monitoring systems now offers customers what it is describing
environmental (CEMS) is expected to grow at a as a revolutionary future-proof gas analyser
regulations are ensuring T
compounded annual growth rate which can protect against any requirements to
that the chemical
of nearly ten per cent over the next five years, monitor new parameters in the future.
companies remain in
according to a new ARC Advisory Group study.
the market for the latest
The main factors that are contributing to the
Measuring 300 compounds
continuous emissions
monitoring systems.
growth of CEMS worldwide are legal regulations The FTIR Gasmet DX-4000 can monitor
and increased awareness of environmental up to 300 different compounds of varying
protection needs. concentration and other gases can be added
Les réglementations According to CEMS Worldwide Outlook, for future applications at little or no extra cost,
légales et total shipments in 2008 – including hardware, creating a future-proof instrument (Fig. 1).
environnementales plus
software, integration, and maintenance services FTIR stands for Fourier Transform Infrared,
strictes garantissent que
– exceeded US$550 million. Due to the current the preferred method for infrared spectroscopy.
les sociétés chimiques
adverse economic conditions, market slowdown An FTIR spectrometer obtains infrared spectra
restent sur le marché des
systèmes de mesure des
is expected in the second and third quarter of by first collecting an ‘interferogram’ of a sample
émissions en continu.
2009 with a recovery in 2010. signal with an interferometer, which measures
all infrared frequencies simultaneously to
Maintenance procedures
produce a spectrum.
Strengere gesetzliche New and innovative measuring technologies and Sample identification is possible because
Anforderungen und
automatic maintenance procedures are needed chemical functional groups absorb light at
Umweltschutz-
to lower the total cost of ownership of CEMS. specific frequencies.
bestimmungen
This, says the study, will significantly increase In addition, through calibration of the
gewährleisten, dass
the CEMS market penetration among small- spectrometer, it is possible to determine the
Chemieunternehmen für
die neuesten
scale manufacturers. intensity of the absorption (relative to the
kontinuierlichen
ARC’s study also points to the software- component concentration).
Emissionsüber-
based predictive emission monitoring system The Gasmet FTIR gas analyser can measure
wachungssysteme auf
(PEMS) as being a cost
dem Markt bleiben. effective alternatives to
CEMS. A PEMS consists
of an emission model that
reflects the relationship
between process
operations and ambient
conditions to emission and
a sensor validation system
to ensure the accuracy of
the predicted emissions
data.
“The main attraction
of PEMS over hardware
based CEMS is their total
ownership cost advantage,
which could be as much
as 50 per cent in some
applications,” notes the
study.
As if to illustrate
the study’s point
about the need for Fig. 1. The FTIR Gasmet DX-4000 can monitor up to 300 different
new and innovative compounds of varying concentration.
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