Process and system for producing engineered fuel

Patent metadata

Field	Value
Publication number	US-11479733-B2
Application number	US-202017064079-A
Country	US
Kind code	B2
Filing date	Oct 6, 2020
Priority date	Jun 24, 2015
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A process and system for producing an engineered fuel product that meets customer specifications for composition and combustion characteristics is provided. The engineered fuel product is preferably a high-BTU, alternative fuel that burns cleaner than coal or petroleum coke (petcoke) and has significantly reduced NOx, SO 2 and GHG emissions.

First claim

What is claimed is:

1. A process for treating a solid waste material, the process comprising:
removing a first set of waste components from the solid waste material, the first set of waste components comprising at least one of ferrous and non-ferrous metals;
shredding the solid waste material after the first set of waste components are removed from the solid waste material;
removing a second set of waste components from the solid waste material, the second set of waste components comprising one or more of organics, glass, aggregates, wood, textiles, and rubber;
proportionally adding a clean stream to the solid waste material, the clean stream comprising at least one of fibers and clean plastics, such that a desired plastics content is introduced into the solid waste material, wherein the clean stream does not originate from the solid waste material;
removing a third set of waste components from the solid waste material, the third set of waste components comprising at least one of ferrous and non-ferrous metals; and
reshredding the solid waste material.

2. The process of claim 1 , further comprising densifying the solid waste material after reshredding the solid waste material.

Assignees

• Wm Intellectual Property Holdings L L C

Inventors

• Toberman Richard A

Classifications

• C10L5/406

  on plastic · CPC title

• C10L2290/54

  Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel · CPC title

• B03B9/06

  specially adapted for refuse · CPC title

• C10L2290/08

  Drying or removing water · CPC title

• C10L2290/30

  Pressing, compressing or compacting · CPC title