Synthetic Biofuels by Molten‐Salt Catalytic Conversion: Corrosion of Structural Materials in Ternary Molten Chlorides

The molten-salt catalytic conversion of biomass into synthetic fuels is one the promising renewable energy topics 21st century. Mixtures Zn–Na–K//Cl have gained attention, acting as catalytically active heat transfer fluids in process, due to their low costs and principally melting points which effectively lower required operating temperature reactor. Herein, corrosion behavior three candidate steels, SS316L, SS321, Alloy 800, pure molten salt, a salt–biomass mix, mix containing inhibitor (zinc oxide (ZnO)) comprehensively investigated. herein described study demonstrates that additions increase penetration depth mechanism leads partial spalling scale. This attributed presence oxygen moisture from leading formation reactive HCl gas. addition ZnO reduced corrosivity all alloys obtained protective, adherent, thin scale conclusion indeed an effective for presented salt system. These findings constitute major advance implementation salt-catalytic reactors fuel production.