| abstract |
PROBLEM TO BE SOLVED: To provide an exhaust gas treatment system and a treatment method that are excellent in durability, can reduce treatment costs, have high desulfurization and denitration efficiency, and can recover carbon dioxide with high purity. An exhaust gas treatment system includes a desulfurization unit that removes sulfur oxides, a denitration unit that removes nitrogen oxides, and a carbon dioxide recovery unit that collects carbon dioxide, and the desulfurization unit includes a calcium compound. A desulfurization device that removes sulfur oxides from exhaust gas using an absorbing solution containing a cleaning device, and a cleaning device that removes calcium-containing particles contained in the exhaust gas by washing the exhaust gas discharged from the desulfurization device with washing water; Have In the denitration section, the oxidation reaction is advanced by pressurization of the exhaust gas, and nitrogen dioxide is removed from the exhaust gas using an aqueous absorbing solution. [Selection] Figure 1 |