System and method for producing a consistent quality syngas from diverse waste materials with heat recovery based power generation, and renewable hydrogen co-production

摘要

A system and method for converting waste and secondary materials into synthesis gas (syngas) through the use of a molten metal bath gasifier for the initial breakdown of waste feeds and an A/C plasma reactor for complete dissociation of waste feeds into syngas, and an anaerobic digester. The system includes a heat recovery and steam power generation process for the production of electricity. The system produces a net output of electricity above plant load sufficient for the co-production of renewable Hydrogen and Oxygen. The process does not require the use of fossil fuels or fossil feedstocks during normal operations, and it eliminates combustion produced stack emissions or landfill residuals.

主权项

1. A system for efficiently converting heterogeneous waste materials consisting of biodegradable and/or non-biodegradable wastes into a high quality syngas, comprising:
(a) a first subsystem for receiving and filtering pumpable, non-biodegradable waste; (b) a second subsystem for receiving and resizing non-pumpable, non-biodegradable waste; (c) a third subsystem for receiving and resizing biodegradable waste; (d) a molten metal bath gasifier (MMBG) having a molten metal bath for receiving the non-biodegradable wastes outputted from steps (a) and/or (b) into the molten metal bath, the MMBG outputting a process gas from the non-biodegradable waste; (e) an anaerobic digester, upstream from the MMBG, for receiving the biodegradable waste outputted from the third subsystem and for producing a biogas and effluent; and (f) an alternating current (A/C) plasma reactor disposed downstream from the MMBG and the anaerobic digester, and receiving process gas from the MMBG, and biogas from the anaerobic digester as a process gas and/or a working gas; with the A/C plasma reactor converting the process gases from the MMBG and the anaerobic digester into a plasma phase and outputting raw syngas.