Patent ID: 8690975

Claim:
A multi-chamber system for converting carbonaceous feedstock to syngas and slag, comprising: one or more primary chambers for conversion of carbonaceous feedstock to a processed feedstock/char and a primary chamber gas, wherein each primary chamber comprises a feedstock inlet, a first air input means, an optional process additive input, a primary chamber gas outlet, and a processed feedstock/char outlet; one or more secondary chambers for conversion of processed feedstock/char to a residue and a secondary chamber gas, wherein each secondary chamber comprises a processed feedstock/char inlet for receiving processed feedstock/char from at least one of said primary chambers, a second air input means, an optional process additive input, a secondary chamber gas outlet, a residue outlet and an impedance mechanism configured to partially or intermittently occlude the residue outlet, thereby limiting or regulating the flow of material out of the secondary chamber; one or more gas reformulating chambers each comprising a gas reformulating zone, in fluid communication with at least one of said primary chamber and secondary chamber gas outlets for conversion of said primary chamber gas and/or said secondary chamber gas received therefrom to a processed syngas, comprising an optional process additive input, a syngas outlet, and one or more sources of reformulating heat; one or more melting chambers for converting the residue from said secondary chambers to slag, wherein each said melting chamber comprises a residue inlet in communication with the residue outlet of said secondary chambers, one or more sources of melting heat, and a slag outlet; and a control system to regulate the operation of the system.