The technology of cyclic utilizing byproducts from wet desulfuration by using magnesium oxidemagnesium sulfite has been presented. Study on feasibility shows that the desulfuration technology of this kind to have high desulfuration efficiency

as well as capital investment and operation cost to be relatively lower. It is suitable for desulfuration in power plant which isn’t far from magnesium mines

has low sulfer content in fuel coal

and has chemical plant for regeneration of magnesium sulfite nearby

but there is short of application achievements in large power plants at home.