Desulfurization Gypsum Production Line (For Power Plant) Currently the worlds most technologically sophisticated desulfurization process is limestone - gypsum method. There is a very high command on the contents and fineness of limestone powder and calcium oxide for desulfurization. Jan 11, 2016 Jan 11, 2016 Wastewater treatment system design MgO FGD technology. 1. Flue Gas Desulfurization Technology Overview. Magnesium desulfurization technology around the world have a lot of application performance, which has been applied in 13 of the more than 100 projects. Taiwans power plant is 95% of magnesium oxide, the United States, Germany Crushed limestone powder is important material for flue gas desulfurization or power plant desulfurization. The desired fineness is usually 200mesh. Joyal can offer you suitable grinding mills to produce limestone powder with 200mesh fineness, such as MTM trapezium grinding mill and MTW European trapezium grinding machine.