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Oxygen Removal From Contaminated Gases

  • US 20110094378A1
  • Filed: 10/23/2009
  • Published: 04/28/2011
  • Est. Priority Date: 10/23/2009
  • Status: Active Grant
First Claim
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1. A process for the improved separation of oxygen from a natural gas feed stream which comprises:

  • a. passing said natural gas feed stream to a first separation unit so as to separate oxygen from said feed stream and produce a first product stream enriched with methane and a waste stream having a higher molar concentration of oxygen than said feed stream; and

    b. passing said first product stream to a second separation unit containing an oxygen-selective adsorbent and operated with a pressure swing so as to preferentially adsorb said oxygen to produce a low pressure gas stream enriched with oxygen and produce a higher pressure second product stream enriched with methane.

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