Molten salt oxidation is a non-flame, thermal process that destroys all organic materials while simultaneously retaining inorganic and hazardous components in the melt. It is used as either hazardous waste treatment (with air) or energy harvesting similar to coal and wood gasification (with steam). The molten salt of choice has been sodium carbonate (m.p 851°C), but other salts can be used. Sulfur, halogens, phosphorus and similar volatile pollutants are oxidized and retained in the melt. Most organic carbon content leaves as relatively pure CO/CO2/H2/H2O gas (depending on the feed conditions, whether steam or air is used), and the effluent only requires a cold trap and a mild aqueous wash (except mercury-containing wastes). It has been used for safe biological and chemical weapons destruction, and processing waste such as scrap tires where direct incineration/effluent treatment is difficult. The major downside of the process compared to direct incineration is the eventual saturation of the melt by contaminants, and needing reprocessing/replacement.
See alsoedit
Recovery boiler - a technology with similar issues used in Kraft process chemical pulping of paper, though temperatures <500°C
Referencesedit
This waste-related article is a stub. You can help Wikipedia by expanding it.
molten, salt, oxidation, flame, thermal, process, that, destroys, organic, materials, while, simultaneously, retaining, inorganic, hazardous, components, melt, used, either, hazardous, waste, treatment, with, energy, harvesting, similar, coal, wood, gasificati. Molten salt oxidation is a non flame thermal process that destroys all organic materials while simultaneously retaining inorganic and hazardous components in the melt It is used as either hazardous waste treatment with air or energy harvesting similar to coal and wood gasification with steam The molten salt of choice has been sodium carbonate m p 851 C but other salts can be used Sulfur halogens phosphorus and similar volatile pollutants are oxidized and retained in the melt Most organic carbon content leaves as relatively pure CO CO2 H2 H2O gas depending on the feed conditions whether steam or air is used and the effluent only requires a cold trap and a mild aqueous wash except mercury containing wastes It has been used for safe biological and chemical weapons destruction and processing waste such as scrap tires where direct incineration effluent treatment is difficult The major downside of the process compared to direct incineration is the eventual saturation of the melt by contaminants and needing reprocessing replacement See also editRecovery boiler a technology with similar issues used in Kraft process chemical pulping of paper though temperatures lt 500 CReferences edit nbsp This waste related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Molten salt oxidation amp oldid 1183950951, wikipedia, wiki, book, books, library,
