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Method for producing renewable fuels

  • US 9,040,271 B2
  • Filed: 05/06/2014
  • Issued: 05/26/2015
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. A method of transforming waste organic material to produce a liquid transportation or heating fuel comprising:

  • (a) subjecting waste organic material to anaerobic digestion by microorganisms in a biogas production facility that incorporates apparatus to collect the microbially generated biogas;

    (b) collecting an amount of crude biogas from the biogas production facility;

    (c) removing impurities from the crude biogas to yield a combustible fluid feedstock;

    (d) introducing a first amount of combustible fluid feedstock from step (b) or (c) to apparatus for delivering a combustible fluid feedstock to a fuel production facility;

    (e) withdrawing for use at a fuel production facility a second amount of combustible fluid feedstock;

    (f) processing at the fuel production facility the second amount of combustible fluid feedstock to produce renewable hydrogen;

    (g) producing a third amount of liquid transportation or heating fuel by a process that comprises combining renewable hydrogen derived from the second amount of combustible fluid feedstock with a desulfurized, crude oil derived liquid hydrocarbon in a reactor under conditions to hydrogenate the liquid hydrocarbon with the renewable hydrogen; and

    (h) generating or causing generation of a renewable fuel credit.

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