Semi-dry treatment system for flue gas desulfurization and denitrification

• Main Authors: SONG DUANYANG, CAI YOULIN, TIAN JIANMING, ZHOU GUANGQUAN, WANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model relates to a semi-dry treatment system for flue gas desulfurization and denitrification, which belongs to the technical field of flue gas purification and comprises a denitrification reaction tower for reacting nitrogen oxides in high-temperature flue gas, a concentration tower for forming a supersaturated solution of ammonium sulfite from a generated solution containing ammonium sulfite, and a gas-liquid separation tower for separating the supersaturated solution of ammonium sulfite from the supersaturated solution of ammonium sulfite, the lower part of the denitration reaction tower is communicated with a flue I of high-temperature flue gas, the middle lower part of the denitration reaction tower is communicated with a liquid outlet of the concentration tower, the top of the denitration reaction tower is communicated with the middle lower part of the concentration tower, and the top of the denitration reaction tower is communicated with the liquid outlet of the concentration tower. The top