Accession Number : ADD007715

Title :   Nitrogen Fixation with a High Energy Laser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Conrad,Raymond W

Report Date : 11 Sep 1979

Pagination or Media Count : 4

Abstract : Disclosed is a method and device for the fixation of atmospheric nitrogen utilizing the very high temperature and rapid quenching rates of plasmas produced by the focused beam of a repetitively-pulsed, high energy laser. The irradiance at the focal point of a mirror employed in the nitrogen fixation reaction chamber exceeds that required for plasma production in clear air, namely: 10 to the 9th power watts/ sq cm at 10.6 micrometers; consequently, a plasma is produced every time the laser pulses. The laser pulse length being short causes rapid quenching of the plasma thereby preventing decomposition of the nitric oxide formed from a mixture of nitrogen and oxygen introduced at an elevated pressure through an inlet to the nitrogen fixation reaction chamber. The reaction gas mixture containing the nitric oxide is extracted from the reaction chamber through an outlet means. The nitric oxide is subsequently removed by scrubbing with water, or by other extraction techniques well established in the art. (Author)

Descriptors :   *Patents, *Pulsed lasers, *High energy, *Nitrogen, *Oxygen, Atmospherics, Radiation, Focusing, Mirrors, Plasmas(Physics), Recombination reactions, Irradiation, Mixtures, Nitrogen oxides, Extraction, Water, Nitration, High pressure, Inventions

Subject Categories : Inorganic Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE