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Oxidative coupling of methane for olefin production

  • US 10,407,361 B2
  • Filed: 03/05/2018
  • Issued: 09/10/2019
  • Est. Priority Date: 04/13/2016
  • Status: Active Grant
First Claim
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1. An apparatus for exchanging heat, the apparatus comprising:

  • a first chamber and a second chamber;

    a plurality of tubes configured to contain a process fluid that flows from an inlet in the first chamber to an exit of the second chamber, passing through the first chamber and the second chamber; and

    a steam drum configured to contain a liquid phase and a gas phase of a cooling fluid, wherein (i) the steam drum is in fluidic communication with the first chamber such that the liquid phase of the cooling fluid is contacted with an exterior of the plurality of tubes in the first chamber to boil the cooling fluid using heat derived from the process fluid, and (ii) the steam drum is in fluidic communication with the second chamber such that the gas phase of the cooling fluid is contacted with an exterior of the plurality of tubes in the second chamber to super-heat the cooling fluid using heat derived from the process fluid.

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