| abstract |
The present invention provides a gasifier comprising one or more fluid conduits for converting carbonaceous feedstock into an off-gas and residual solid material. The gasifier comprises a refractory-lined processing chamber having one or more fluid conduits located therein to facilitate the passage of fluid material such as gas into and/or out of the chamber. For example, a conduit facilitates the input of process additives and/or the exit of steam and/or off-gases from the processing chamber. The gasifier comprises one or more input(s) for receiving feedstock, one or more residue outlets, and heating means to facilitate the conversion process and a control system for controlling various aspects of the gasification process. Optionally, the gasifier may be configured for recycling steam and/or off-gas and/or recycled heat back into processing chamber. Optionally, the gasifier may further comprise one or more material displacement control modules, and mixing means. |