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HYDRATE FORMATION FOR GAS SEPARATION OR TRANSPORT

  • US 20110123432A1
  • Filed: 02/08/2011
  • Published: 05/26/2011
  • Est. Priority Date: 12/30/1999
  • Status: Abandoned Application
First Claim
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1. A gas separation process comprising:

  • entraining a solid particle medium in a fluidizable mixture to form a fluidized mixture, wherein said fluidizable mixture includes an aqueous liquid feed and a gas mixture feed including a first gas having a first hydrate P-T stability envelope and a second gas having a second hydrate P-T stability envelope different from said first hydrate P-T stability envelope;

    conveying said fluidized mixture past a heat transfer surface while contacting said fluidized mixture with said heat transfer surface, wherein said heat transfer surface is cooler than said fluidized mixture;

    cooling said fluidized mixture upon contact with said heat transfer surface to an operating temperature at an operating pressure, wherein said operating pressure and operating temperature are outside said first hydrate P-T stability envelope and inside said second hydrate P-T stability envelope;

    converting at least a portion of said second gas and at least a portion of said aqueous liquid feed to a plurality of gas hydrate particles;

    forming a gas hydrate slurry comprising said plurality of gas hydrate particles and a portion of said aqueous liquid feed; and

    separating said gas hydrate slurry from said first gas.

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