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System and method for recovering nitrogenous compounds from a gas stream

  • US 10,513,466 B2
  • Filed: 01/16/2018
  • Issued: 12/24/2019
  • Est. Priority Date: 01/16/2017
  • Status: Active Grant
First Claim
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1. A method of producing a treated gas by removing nitrogenous compounds from a gas stream, the method comprising:

  • introducing the gas stream comprising nitrogenous compounds into a nitrogenous liquid comprising a salt of ammonia;

    introducing an oxidant into the nitrogenous liquid to produce oxy-anions of nitrogen;

    introducing a base into the nitrogenous liquid to maintain the nitrogenous liquid and oxy-anions of nitrogen at a predetermined pH between about 3 and about 9 to control a concentration of the oxy-anions of nitrogen; and

    discharging the treated gas comprising a reduced concentration of the nitrogenous compounds.

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