In addition to traditional vanadium based technologies, we have patented zeolite.
1 More recent applications include diesel engines, such as those found on large ships, diesel locomotives, gas turbines, and even automobiles.
Power plants edit In power stations, the concours mariage 2018 belgique same basic technology is employed for removal of NO x from the flue gas of boilers used in power generation and industry.SCR catalyst, where it reacts with NOx and oxygen to form nitrogen and water.6 7 Diesel engines manufactured on or after January 1, 2010 are required to meet lowered NOx standards for the US market.Thermal durability is particularly important for automotive SCR applications that incorporate the use of a diesel particulate filter with forced regeneration.Some examples of plugging contaminates are: fine particulate, ammonia sulfur compounds, ammonium bisulfate (ABS) and silicon compounds.AIG Tuning for more information.In general, the SCR unit is located between the furnace economizer and the air heater, and the ammonia is injected into the catalyst chamber through an ammonia injection grid.This occurs when ammonia is over-injected into gas stream, temperatures are too low for ammonia to react, or catalyst has degraded (see above).A third type is corrugated, comprising only about 10 of the market in power plant applications.1 Limitations edit SCR systems are sensitive to contamination and plugging resulting from normal operation or abnormal events.Plate-type catalysts have lower pressure drops and are less susceptible to plugging and fouling than the honeycomb types, but plate configurations bon de reduction private sportshop are much larger and more expensive.
They also have a high catalysing potential to oxidize SO 2 into SO 3, which can be extremely damaging due to its acidic properties.
8 BMW 9 10, Daimler AG, and Volkswagen have used SCR technology in some of their passenger diesel cars.
Product Overview, sCR uses ammonia as a reducing agent, which is introduced into the flue gas stream.
4 Zeolite catalysts have the potential to operate at substantially higher temperature than base metal catalysts; they can withstand prolonged operation at temperatures of 900 K and transient conditions of up to 1120.
SCR system integrated with your boiler.Ammonia flow is in general controlled based on NOx measurements taken from the gas stream or preexisting performance curves from an engine manufacturer (in the case of gas turbines and reciprocating engines).A gaseous reductant, typically anhydrous ammonia, aqueous ammonia or urea, is added to a stream of flue or exhaust gas and is adsorbed citation needed onto a catalyst.SCR technologies to meet NOx mobile emissions regulations around the globe.A custom heater recovery system allows flue gas temperatures to be optimized, resulting in the most effective reduction of NOx emissions and increased efficiency.Honeycomb configurations are smaller than plate types, but have higher pressure drops and plug much more easily.SCR, system Evaluation page for more information on our services.