Resources Contact Us Home
Removal of nitrogen oxides from gas

Image Number 3 for United States Patent #4400362.

Gas containing nitrogen oxides is treated in two separate stages. In the first stage, the nitrogen oxides in the gas are reacted with sulfurous acid. The gaseous product of this reaction is reacted with an alkaline solution, typically caustic alkali. As a result of these treatments, the nitrogen oxides are converted into neutral salts.

  Recently Added Patents
Ventilated vacuum commutation structure
UV liquid treatment system
Imaging lens having five lens elements, and electronic apparatus having the same
Method and apparatus for information exchange over a web based environment
Modular storage system
Method and apparatus for a battery docking connector having reserve power for hot battery swap
  Randomly Featured Patents
Copper lanolate and anti-acne compositions containing the same for topical application to the skin
Flexibilized polyepoxide resins incorporating poly-N-methylated secondary amines
In-plane switching mode liquid crystal display device having common lines crossing gate links
Standoff heater housing
1,2,3-triazole-imidazole compounds
Apparatus for translating lingual morphemes as well as the typographical morphemes attached thereto
Channel changing mechanism of a tape player
Crop debris clearing device
Process for controlling reading data from a DRAM array
Apparatus and method of controlling an image forming apparatus