Pyrolysis of halogenated organic hazardous wastes with direct reduction of iron oxides

摘要

Disposal of halogenated organic hazardous wastes by introducing them as feedstocks in the direct reduction of iron oxide (DRI). (DRI is described in Pat. RE.32247.) The novel hydrocarbons used as reducing feedstocks would normally be destined to become hazardous wastes or else their products of decomposition would be hazardous wastes. Such hydrocarbons are inclusive of but not limited to halogenated hydrocarbons such as PVC, PCBs, various insecticides, dioxin and others. This category of hydrocarbon wastes is otherwise difficult to utilize, incinerate, or otherwise dispose of safely. Polluting byproducts such as dioxin are almost always released. However within a DRI reactor they can be disposed of safely. There is no stack or vent to atmosphere. These hydrocarbons would be used as an alternative to or admixture with the usual hydrocarbon feedstocks of choice, methane or related short chain hydrocarbons.