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Post-manufacturing processes for submerged combustion burner

  • US 9,751,792 B2
  • Filed: 08/12/2015
  • Issued: 09/05/2017
  • Est. Priority Date: 08/12/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • disposing at least a portion of a submerged combustion burner into a pressure vessel, wherein the portion of the submerged combustion burner has a first microstructure defined by a first number of voids;

    filling the pressure vessel containing the portion of the submerged combustion burner with an inert gas;

    pressurizing the pressure vessel containing the portion of the submerged combustion burner;

    heating the pressure vessel containing the portion of the submerged combustion burner, wherein the pressurizing and heating operations are performed for a time and at a temperature and a pressure sufficient to produce a second microstructure in the burner, wherein the second microstructure is defined by a second number of voids less than the first number of voids; and

    weld-repairing a defect in the portion of the submerged burner before disposing the portion of the submerged combustion burner in the pressure vessel.

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