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

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.