The trend of denitrification in diesel vehicles
Nitrogen oxide (NOx) in tail gas is the main component in the treatment. Selective catalytic reduction (SCR) denitrification technology is the symptomatic good medicine for the treatment of NO. At present, SCR technology has been widely used in thermal power plants throughout the country, and this technology has gradually begun to be applied to the exhaust gas of diesel engines on automobiles, ships, and so on.
The advantage of JLDN-1 in diesel vehicle denitrification
The most widely used SCR catalyst for denitrification of diesel engine thermal power plant is a vanadium-based catalyst, and its carrier is titanium dioxide. The high transforming rate window is between 300℃ and 400℃, suitable for denitrification at medium and high temperatures. It is not suitable for low-temperature flue gas treatment or diesel engine exhaust emission treatment under low operating load. Due to the wide range of diesel engine exhaust gas temperatures (150~600℃), it is necessary to find a catalyst with a wider temperature window in order to meet increasingly stringent emission standards. And now we have the JLDN-1 with excellent performance in this application.
JLDN-1 zeolite has high crystallinity, good hydrothermal stability, cation exchangeability, and adjustable acidity.
JLDN-1 zeolite can adsorb N2, CH4, and CO2 molecules with a critical diameter of not more
than 3.8 Å.
JLDN-1 can be used as a catalyst for the catalytic purification of NH3-SCR in diesel exhaust
gas and methanol to olefins.
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