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Systems and methods for producing engineered fuel feed stocks from waste material

  • US 9,650,584 B2
  • Filed: 09/02/2016
  • Issued: 05/16/2017
  • Est. Priority Date: 06/03/2011
  • Status: Active Grant
First Claim
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1. A process for extracting materials from municipal solid waste, the process comprising steps of:

  • providing a municipal solid waste comprising a first set of waste materials, a second set of waste materials and a third set of waste materials, wherein the first set of waste materials comprises one or more of ferrous metals, non-ferrous metals, glass, and dirt, the second set of waste materials comprises one or more of fibers and rigid plastics, and the third set of waste materials comprises one or more of foam plastics and film plastics;

    shredding the municipal solid waste;

    removing all or substantially all of the first set of waste materials from the municipal solid waste;

    separating the second set of waste materials from the third set of waste materials in the municipal solid waste;

    combining a metered amount of the second set of waste materials and a metered amount of the third set of waste materials in a predetermined ratio to form a first mixed waste stream;

    mixing a fourth stream with at least a portion of the first mixed waste stream to form a second mixed waste stream, wherein the fourth stream comprises fibers and soft plastics; and

    densifying the second mixed waste stream.

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