Systems and methods for producing engineered fuel feed stocks from waste material
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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Abstract
Systems and methods for producing engineered fuels from solid waste material are described herein. In some embodiments, a method includes receiving a waste stream at a multi-material processing platform and separating the waste stream to remove non-processable waste and marketable recyclables. The method further includes conveying processable materials to a material classification system and incorporating additives to produce an engineered fuel from the constituents of the waste stream.
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Citations
30 Claims
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1. A process for extracting materials from municipal solid waste, the process comprising steps of:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process for extracting materials from municipal solid waste, the process comprising steps of:
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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; recombining a controlled amount of the second set of waste materials and a controlled amount of the third set of waste materials 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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A process for extracting materials from municipal solid waste, the process comprising steps of:
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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 portion of the second set of waste materials and a portion of the third set of waste materials at desired proportions 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. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A process for receiving and separating a municipal solid waste stream to remove materials, the process comprising steps of:
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providing a municipal solid waste stream comprising one or more of ferrous metals, non-ferrous metals, glass, and dirt, and hard plastics and fibers, and soft plastics, the soft plastics including one or more of plastic films, bags and foams; shredding the municipal solid waste stream; removing all or substantially all of the one or more of ferrous metals, non-ferrous metals, glass, and dirt from the municipal solid waste stream; separating the one or more of hard plastics and fibers from the soft plastics of the municipal solid waste stream; combining a metered amount of the hard plastics with a metered amount of the soft plastics in a preset mixing ratio to form a first mixed waste stream; mixing a portion of the soft plastics with a portion of the fibers to form a combined stream, the combined stream comprising the fibers and the soft plastics, and mixing the combined stream with the first mixed waste stream to form a second mixed waste stream; and densifying the second mixed waste stream. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification