44 Measurement and Testing Emissions Analysis to Meet the Highest Demands
The increasing sense of environmental awareness around the globe is demanding higher standards for environmental monitoring. Heraeus Noblelight has developed an easy to use, plug & play light solution based on NOx light technology, for very accurate measurement of NOx and other pollution gases.
Environmental monitoring is used to describe the various processes, tests and investigations that are carried out in order to monitor the state of the environment and its changes, to understand and protect it. One of the major monitoring areas is air quality monitoring, which requires highly accurate measuring instruments. Heraeus Noblelight’s new light solution is developed for high accuracy, fast and real-time NOx measurement, together with very low operating costs.
NOx instrument development based on UV Resonance Absorption Spectroscopy (UV-RAS) has been diffi cult in the past, due to challenges in tuning the UV-lamp operation within its environment to optimise lifetime and intensity.
The NOx electrodeless discharge lamp (EDL) is a lamp with N2 , H2 S, NH3 , SO2 , O2 gas fi ll that emits a spectrum in the
wavelength range between 200 nm to 600 nm. NOx-specifi c spectral lines in the 200 nm region can be used for the detection of NO and NO2
and other pollution gases.
The NOx electrodeless discharge lamp offers high accuracy in measurement of several gas components simultaneously and in real-time. The new module is fl exible and effective in use with very low operating costs. (Photo: Heraeus Noblelight GmbH)
The Heraeus NOx module: complete plug & play solution for simple, cost effective system integration and replacement into OEM UV-RAS systems. (Photo: Heraeus Noblelight GmbH)
Heraeus Noblelight’s new plug & play light solution for reliable NOx measurement is a lamp module that offers a pre-tuned UV-light source in a stable environment to ensure optimised performance. The NOx lamp module has an integrated EDL and comes with the corresponding power supply combined in a box. This makes integration into an OEM UV-RAS system very easy and cost effi cient, plus light source replacement at End Of Life is by simply replacing the module in the fi eld.
High accuracy and stability are required in any measurement process. The new NOx module delivers both and even more. It is easy and effective in use, and without the need for consumables, it ensures very low operating costs. Enabling fast and accurate absorption measurements without cross-interference from water and CO2
measurements possible with high measurement confi dence - a real competitive advantage for UV-RAS compared to other technologies. NOx is a generic term for the nitrogen oxides NO and NO2
, it saves time during the measurement process and makes dynamic (real time) . It reacts in our atmosphere to form a wide variety of toxic products, as well as supporting the formation of ground-level (tropospheric) ozone. Sources
of NOx are predominantly man-made: burning fossil fuels for energy generation, such as coal-,oil- and gas-fi red power stations, refuse incineration, some chemical processes and vehicle fuels, like modern diesel cars, used for land, water and air transportation.
Common methods for measuring NOx include sensor technologies based on chemiluminescence and electrochemical techniques. This requires conversion of NO2 the NO2
content based on an assumed NO:NO2 measurement of both NO and NO2
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ratio. In addition, NOx can be measured with infrared radiation, which can be affected by the content of H2 O and CO2
is the more precise way to measure total NOx for continuous emissions monitoring, and measurement in the UV-region avoids the infl uence of H2
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Online Monitoring of Water in Glycol with Mid-Infrared Instrument
Keit announces confi rmation of real-time online analysis of water in glycol capabilities with a novel mid- infrared spectrometer. The IRmadillo FTIR spectrometer continues to expand its capabilities in the oil and gas manufacturing industries with the ability to measure water in glycols as well as improved detection limits down to 96 ppm. The solid-state IRmadillo addresses the three major challenges with standard methods of water detection in glycol dehydration process. Firstly, standard methods generally require remote sampling and therefore produce delay in results. Secondly, both near infrared (NIR) and Raman instruments can be used for real-time results, but they lack any real sensitivity for water. Thirdly, conventional FTIR spectrometers
are more sensitive but highly vibration intolerant and necessitate the use of fragile fi bre probes. Keit has developed a solid-state spectrometer that is inherently vibration resistant and is certifi ed safe for use in hazardous and potentially explosive environments making this mid-infrared spectrometer an ideal in situ and real-time process monitoring instrument for the petrochemical industry.
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Effective environmental management is one of the biggest challenges faced by the public and private sectors today. Whether you are a local authority, small business or multi-national enterprise, we all operate in an increasingly regulated environment and without access to the right information, operations and reputation can be adversely affected.
Essential Environment Online has been designed to help businesses, local authorities and education establishments keep track of developments in UK and EU environmental policy and regulation. Providing clear, simple information and guidance at your fingertips, it is the only reference resource on environmental legislation you will ever need.
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to NO for measurement or calculation of in the sample. Direct UV absorption .
O and CO2
NEW E8500 PLUS Portable Emissions Analyser with
Upgraded CO2 Measurements
The NEW E8500 PLUS emissions analyser from E Instruments is a complete portable tool for EPA compliance level emissions monitoring and testing. This model has been upgraded to measure up to 50% CO2
using an NDIR sensor. The E8500
PLUS is ideal for regulatory & maintenance use in boiler, burner, engine, turbine, furnace, and other combustion applications.
NEW Features: CO2 Measurements Now Up To
50% with NDIR Sensor, NEW PID VOC Sensor Option, Include Up To 9 Gas Sensors, Upgraded Software with Automatic Data-Logging, Internal Thermoelectric Chiller with Automatic Condensate Removal, New Sample Conditioning System for Low NOx & SO2
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