Superfund Research Program
Process Using Recyclable Sorbents for the Removal of Sox from Flue Gases and Other Gas Streams
Patent Status: Issued
Authors: Pinnavaia, T.J., M. Chibwe, J. Amarasekera
A process for removing and then capturing noxious sulfur oxides from gas streams, particularly from the flue gases of coal-burning power plants, using Ni-containing heated layered double hydroxide (LDH) as recyclable sorbents. The sorbent compositions contain metal components that form stable metal sulfites and sulfates at one temperature, but are decomposed at a higher temperature to regenerate the sorbent material.
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