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System and method for purging contaminants from a salt cavern

  • US 9,707,603 B2
  • Filed: 09/30/2014
  • Issued: 07/18/2017
  • Est. Priority Date: 09/30/2014
  • Status: Active Grant
First Claim
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1. A method for reducing a concentration of one or more contaminants in a salt cavern, comprising:

  • introducing a purge fluid into an interior region of the salt cavern;

    purging at least a portion of said one or more contaminants from the interior region of the salt cavern with the purge fluid, said one or contaminants comprising at least one of CO2, H2O, sulfur-containing compounds and THC; and

    reducing the concentration of said one or more contaminants within the interior region of the salt cavern such that a hydrogen stream withdrawn from the salt cavern comprises at least one of the CO2, H2O, sulfur-containing compounds and total hydrocarbons (THCs) at a concentration that is at or below a product purity specification of the hydrogen stream withdrawn from the salt cavern.

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