System for producing sodium carbonate by recovering carbon dioxide in flue gas

• Main Authors: LIU GANG, CHI CHANGWEI, DING LITANG, WANG ZHIWEI, WANG ZHENHAO, MA WEI
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• Subjects: CHEMISTRY; COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM; INORGANIC CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model relates to a system for producing sodium carbonate by recovering carbon dioxide in flue gas, which comprises a first-stage alkali liquor absorption tower and a second-stage alkali liquor absorption tower which are sequentially communicated, the second-stage alkali liquor absorption tower is communicated with a static mixer, and the lower part of the first-stage alkali liquor absorption tower is communicated with a first-stage alkali liquor circulating pump; an outlet of the primary alkali liquor circulating pump is communicated with a primary alkali liquor cooler; the primary alkali liquor cooler is communicated with the upper part of the primary alkali liquor absorption tower; the lower part of the secondary alkali liquor absorption tower is communicated with a secondary alkali liquor circulating pump, an outlet of the secondary alkali liquor circulating pump is communicated with a secondary alkali liquor cooler, and the secondary alkali liquor cooler is communicated with the upper part of