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
Due to dispersion of regional, large population quantity, difficult collection, rural sewage becomes the main form of water pollution factors. Rural sewage contains a lot of organic matter and inorganic salts such as nitrogen, phosphorus, etc.
Detecting CO2 impurities: Ammonia, Acetaldehyde, Benzene, Total Sulfur Content, Total Hydrocarbons, SO2, COS. Carbon dioxide (CO2) is a commonly used additive in food and beverage industry (e.g. for soft drink, brewery, and champagne carbonation). Its fabrication process can lead to the presence of impurities such as aromatics, BTEX, ammonia, acetaldehyde, Total Hydrocarbons and sulfur compounds (Total Sulfur Content, SO2, COS, mercaptans...).
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...
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...
MANTECH offers world class laboratory equipment allowing you the flexibility to test your soil samples all the way up to 197 individual positions!
Our tests cover Alkalinity, Ammonia, Chloride, Nitrate and pH for soil samples.
Learn more about our world class laboratory equipment and applications at http://mantech-inc.com/application-abstracts/agriculture-and-soil-application-abstracts/
To measure the ambient air quality at airports is a challenge. The monitoring site needs to be representative for background levels and not dependant on changes in local traffic. A large number of gaseous components need to be measured with high accuracy and high availability. The OPSIS DOAS system provides the user with a fast system that gives high availability at low cost. The impact of aircraft take-offs and landings can easily be followed on-line. The OPSIS system can also monitor fugitive emissions from...
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.
Second Sight TC provides continuous monitoring of the chosen area, while integrated into a pressurized stainless steel enclosure adapted to IECEx hazardous areas, Zone 2 explosive areas and industrial standards.
Chemical processes make very high demands on electronic pressure measuring instruments and hydrostatic fill level probes in two respects: processes may be complex with high dynamic pressures and fast changing temperatures the media are diverse and may be chemically aggressive, explosive, toxic, abrasive and sometimes also dirty and viscous. Add to this top safety requirements, especially in explosion hazardous plant and equipment and the absolute demand for top operational reliability.
Many hydrocarbon processing industry (HPI) applications require accurate, reliable temperature measurements without interference with the process. We provide high quality instruments to meet the needs of the HPI sector. Our dedicated solutions produce critical measurements in reformer and furnace applications, along with flexible thermal imaging systems to cover a range of HPI applications in plants and refineries. Building on our experience across more than 70 years, AMETEK Land produces an extensive range of...
To measure the air quality in a city is a challenge. A large number of gaseous components need to be measured with high accuracy. The monitoring site needs to be representative for the city and the system has to be easy to maintain and calibrate. The OPSIS open-path monitoring systems provide a flexible solution, giving the average concentration for an area. A single OPSIS system can measure all relevant gaseous components set by the authorities, such as NO, NO2, SO2, O3, BTX, NH3.
To measure air quality in the ambient air is a challenge. The monitoring site needs to be representative and not dependant on changes in local traffic. A large number of gaseous components need to be measured with high accuracy and high availability.
The process control of a CO2 capture plant needs good and reliable detection of gas phase NH3 and CO2. Measuring NH3 is a challenge due to the corrosive environment and high concentrations of NH3. Several places in the process needs to be monitored and to transport the sample is difficult. A large dynamic range is needed as the NH3 concentration can vary between 15% volume and a few mg/m3.