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METHOD FOR PRODUCING HOLLOW FIBER CARBON MEMBRANE AND SEPARATION MEMBRANE MODULE

  • US 20180078907A1
  • Filed: 03/02/2016
  • Published: 03/22/2018
  • Est. Priority Date: 03/27/2015
  • Status: Active Grant
First Claim
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1. A method of producing a hollow fiber carbon membrane, the method comprising:

  • a preparation step of preparing a precursor made of an organic polymer compound in the form of a hollow fiber;

    a preheating step of heating the precursor to a temperature of 150°

    C. to 400°

    C. in an atmosphere containing an oxygen gas; and

    a carbonization step of heating the precursor which has been subjected to the preheating step to a temperature of 450°

    C. to 850°

    C., thereby carbonizing the precursor;

    wherein the carbonization step comprises heating the precursor in the presence of a hydrocarbon gas which may contain a nitrogen atom and which has from 1 to 8 carbon atoms.

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