Selective non-catalytic reduction for NO_xremoval

摘要

A selective non-catalytic reduction apparatus for exhaust gases comprising a reactor for elevated temperature reduction of NOx comprising an injection zone, internal structure zone and rear zone. The internal structure zone includes packing materials and provides a surface area of 5.0 m2/g to 20 m2/g where the packing material is present in the reactor at a level of 10% to 50% of the reactor volume. The reactor provides one or more of the following: (1) a residence time for exhaust gas of 0.1 seconds to 5.0 seconds; (2) a pressure drop of less than or equal to 1400 Pa/m at an exhaust gas velocity of 1.0 meter/second.

主权项

1. A selective non-catalytic reduction apparatus for exhaust gases comprising:
a reactor for elevated temperature reduction of NOx comprising an injection zone, internal structure zone and rear zone, defining a reactor volume, wherein said reactor has a length of 0.50 meters to 10.0 meters and a diameter of 5.0 cm to 50.0 cm; said internal structure zone including packing material providing a surface area of 5.0 m2/g to 20 m2/g wherein said packing material is present in said reactor at a level of 10% to 50% of said reactor volume; wherein said reactor provides one or more of the following: (1) a residence time for exhaust gas of 0.1 seconds to 5.0 seconds; (2) a pressure drop of less than or equal to 1400 Pa/m at an exhaust gas velocity of 1.0 meter/second.