CORROSION REDUCTION FOR SUPERCRITICAL WATER GASIFICATION THROUGH SEEDED SACRIFICIAL METAL

摘要

Technologies are presented for reducing corrosion in supercritical water gasification through seeded sacrificial metal particles. The metal particles may be seeded into one or more material input streams through high pressure injection. Once distributed in the SCWG reactor, the metal particles may corrode preferentially to the metal SCWG reactor walls and convert into metal oxides that precipitate out above the supercritical point of water. The precipitated metal oxides may then be collected downstream of the SCWG reactor to be reprocessed back into seed metal at a smelter. The seeded metal particles may complete a process material cycle with limited net additional waste.