Flue gas desulfurization (FGD) based on the so-called lime(stone)-gypsum-process is the classic absorption process for cost-effective separation of sulfuric oxides (SOx, i.e. SO² and SO³) from flue gases with medium to high flow rates or sulphur oxide loads. Flue gas desulfurization plants based on the lime(stone)-gypsum process are typically used for coal or heavy-oil powered industrial (therma

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