Brown grease separator

摘要

A system and method are disclosed for processing grease trap waste to produce brown grease oil. Heat to promote waste grease stratification is provided by combustion of brown grease itself. A portion of the brown grease, which would normally be transported to an end user, is retained in a separate holding vessel at the grease processing site. The brown grease within the holding vessel is thermally conditioned to adjust viscosity so that it may be drawn through one or more pumps to increase pressure for atomization in a boiler. The heat of the brown grease combustion is applied to grease trap waste in the containment vessel by heating tubes immersed in the grease trap waste in which a heat transfer medium circulates and gives up its heat to the grease trap waste to thereby promote stratification of the grease trap waste and production of the brown grease oil.

主权项

1. 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.