Focuses on medium NOx, NOx-related and multigas-concentrations up to 5’000 ppm where flexibility is a central requirement. Parameters included are NO, NO2, NOx, NH3, NOx-amines, O2 and CO2. Typical supported applications are industrial emission monitoring and gas manufacturing control.
In most combustion process atmospheric nitrogen reacts with oxygen in high temperature conditions to produce nitrogen oxides (NOx). Total NOx production is the sum of nitrogen monoxide NO and nitrogen dioxide NO2. The emissions of these gases are controlled through setting of emission limit values (ELVs) for power plants.
Coal power plant: Entrance of SCR denitration device, NOx O2
Exit of SCR denitration device: Measure remanet NH3 after reaction and avoid blocking by crystallization, NH3; Calculate denitrification rate with Nox input, NOx O2
Gas-fired power plant: Counting tail gas emission and realtime concentration, NOx O2 SO2 Temperature pressure flow dust
Focuses on high NOx, NOx-related and multigas-concentrations up to 10’000 ppm. Parameters included are NO, NO2, NOx, NH3, NOx-amines, O2 and CO2. The applications are characterized by demanding sample gas conditions, such as in automotive, aviation, naval, or combustive engine emissions, as well as in catalyst production.
Nitric acid is manufactured from ammonia and is a key chemical in the manufacture of fertilizers. This is the main reason why nitric acid is produced in such large quantities. The production process of nitric acid produces nitrogen oxides (NOx), ammonia (NH3) and nitrous oxide N2O emissions.
NOx detection is an innovative approach in CMP (Chemical Mechanical Polishing) process control. CMP smoothens the wafer surface with a combined chemical and mechanical polishing procedure. During production, wafers are coated by a thin layer. To avoid damage to the wafer surface, for instance by stress cracks, the NOx emitted as soon as the wafer is plane and blank must be measured. Therefore, a high-resolution NOx-detector, capable of determining exactly when the polishing process must be stopped, is essential....
Nitric acid HNO3 is an important intermediate reagent for production of several important end products, such as fertilizers, explosives, dyestuffs/pigments, pesticides, pharmaceuticals, photographic materials, plastics, and synthetic fibers. At nitric acid manufacturing plants, the Gasmet™ FTIR Gas Analyzer can be used to measure several gaseous components from the process stream for purposes of process control. A single system can be used to measure the high levels of nitrogen monoxide NO and nitrogen...
SO2 is one of several important pollutants in the atmosphere, SO2 from the atmosphere can stimulate people`s respiratory tract, abate respiratory function, and lead to respiratory resistance decreased, induce various inflammation of respiratory tract, harm to human health. SO2 also is harm to many plants. SO2 and its generated sulfuric acid mist can corrode metal surfaces and cause damage to paper products, textiles, leather products. It may also form acid rain, which is serious harm to the ecological system and...
Focuses on low NOx and NOx-related concentrations up to 100 ppm where high resolution is required. Parameters included are NO, NO2, NOx and NOy. Target applications are ambient air monitoring, indoor measurement, clean room measurement and atmospheric research.
Nitrogen oxide (NOx) is one of the main sources of air pollution, not only it has significant influence on global warming, but also involved in the destruction of the ozone layer. Technical measures to control NOx emissions can be divided into two categories: one is so-called source control, the characteristic is by a variety of technical means, to control NOx generation in the process of combustion reaction (i.e., low NOx combustion technology). Another kind is the so-called tail control, the characteristic is...
Raw gases are untreated flue gases that have not passed through an emissions control technology system like selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR). They are generally measured for the sakes of process control and warranty tracking. Typically only a few components are measured but fourier transform infrared spectroscopy FTIR technology allows the measurement of all components.
In recent years the number of Selective Catalytic Reduction (SCR) and Selective Non-Catalytic Reduction (SNCR) plants for De-NOx have increased significantly. Continuous analysis of NOx prior to the de-NOx plant is often required to measure the concentration generated by the combustion process. This may be required to provide feed-forward to the Ammonia/Urea injection system and also to allow the effectiveness of the reduction process to be assessed. Continuous analysis of NOx post-reduction is required to allow...
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Process control and emissions monitoring in a brick plant is a challenge due to the high concentrations of HF. The HF is generated in the process and gas phase HF can reach 50 mg/m3 or more. To use an extractive system in this environment will demand a lot of maintanence.
Process control and emissions monitoring in cement plants, can be a challenge due to the dusty and corrosive environment. OPSIS provides an accurate system that will operate with high performance and a minimum of maintenance.
Process control and emissions monitoring in a glass manufacturing plant is a challenge due to high temperature in the flue gas. The OPSIS DOAS system provides the glass industry with an accurate analyser that will operate with a minimum of maintenance. The OPSIS DOAS system is based on a non-contact method that uses an optical path to measure across the duct. A single OPSIS system will measure all relevant gas componensts such as NOX, SO2, CO, CO2, H2O, O2, and others.
Marine monitoring is a variant of OPSIS general offers for continuous emissions monitoring (CEM) and process control. The special operating conditions on-board vessels call for special measures to comply with regulations and expectations. However, OPSIS has mastered this environment and has for many years successfully delivered systems for marine applications.
The nature of steel manufacturing processes places severe limitations on the monitoring methods that can be used. Aggressive environments combined with high levels of particulates and gases make the choice very limited.