Abstract: System(s) and process(es) are provided to produce synthesis gas (syngas) from carbonaceous feedstock and synthesize the syngas into liquid fuel and related byproduct substances. Dissipated heat and byproduct substances are utilized to supply energy to the system(s) and process(es). Utilization of dissipated heat and the byproduct substances as energy sources allows the system(s) and process(es) to be implemented without input from external energy sources. Byproduct substances also are recycled for reconversion to syngas. Syngas is produced in a gasification platform through a multi-phased gasification process comprising pyrolysis of the carbonaceous feedstock, steam reformation (or reaction) of pyrolysis gas, and cleaning of syngas ejected from such steam reformation. The syngas is catalytically converted into a product comprising the liquid fuel and the byproduct substances.