| In recovering flue gas desulfurization (FGD) processes, sulfur dioxide is removed from the flue gas and converted into useful products, typically, sulfuric acid, liquid sulfur dioxide or elemental sulfur. For sulfur dioxide producers located far from their customers of sulfur-containing products, elemental sulfur is desirable since it is easy to ship and to store, and is the raw material of many sulfur consuming processes. The existing technologies for elemental sulfur production from sulfur dioxide in flue gas are mainly limited by high capital and operating costs due to the complexity of process. To overcome this limitation, a new process based on aqueous Na... |
