Patent ID: 8911513

Claim:
A system for processing grease trap waste to produce brown grease fuel oil, the system comprising: a vessel in which the grease trap waste is stored and separated into layers of brown grease, food scrap and water, a heating system that heats the grease trap waste in the vessel, the heating system being comprised of a boiler and a burner assembly within the boiler that operates on brown grease fuel and a conduit arrangement for transferring a heat transfer medium between the boiler and the vessel, and a fuel system for supplying the brown grease fuel to the heating system, the fuel system being comprised of a fuel tank in which the brown grease fuel is heated so that the brown grease fuel has a viscosity that allows it to be combusted in the boiler burner assembly, the conduit arrangement including a plurality of tubes positioned within the grease trap waste in the vessel through which the heat transfer medium gives up heat to the grease trap waste to thereby heat the grease trap waste for separating the waste into the layers of water, food debris and brown grease.