. . . . . "Syngas#Solar_energy" . "Syngas#Production" . "coal gas" . "reaction of red-hot graphite with steam" . . . "Syngas" . . . . "Synthesis Gas" . . . . "Coal-derived Syngas" . . "syngas" . "Coal deprived synthetic gas" . . "synthetic gas" . . "production of syngas from hydrogen and carbon-dioxide" . . "synthesis gas plant" . . "synthesis gas" . . . "gasify" . "Syngas" . . .