APPARATUS FOR PRODUCING HIGHER-PURITY CARBON DIOXIDE FOR RECOVERING CARBON DIOXIDE FROM WASTE GAS CONTAINING FLAMMABLE IMPURITIES, AND METHOD FOR RECOVERING HIGHER-PURITY CARBON DIOXIDE USING SAME

摘要

[ABSTRACT]APPARATUS FOR PRODUCING HIGHER-PURITY CARBON DIOXIDE FOR RECOVERING CARBON DIOXIDE FROM WASTE GAS5CONTAINING FLAMMABLE IMPURITIES, AND METHOD FOR RECOVERING HIGHER-PURITY CARBON DIOXIDE USING SAMEA carbon dioxide high-purity purification apparatus for recovering carbon dioxide from exhaust gas containing combustible impurities and a method for10 recovering high-purity carbon dioxide using the same are disclosed. In particular, an apparatus for efficiently burning exhaust gas containing combustible impurities using pure oxygen, thereby producing high-purity carbon dioxide, and a method for recovering high-purity carbon dioxide using the same are disclosed. The disclosed apparatus includes a combustion unit for burning volatile organic15 compound (VOC) contained in process exhaust gas mixed with combustible impurities, an external air suction fan and a burner, which are used to increase an internal temperature of the combustion unit, a pressure reduction valve for reducing the pressure of process exhaust gas, a mixer for mixing pure oxygen with the process exhaust gas, an 02 detector and an 02 supplier, a low explosive limit (LEL) detector20 for measuring a VOC concentration of the process exhaust gas, an assistant thel supplier, and a recycling fan and a heat exchanger, which removes moisture from the combusted gas, and heating the input waste gas. Fig. 1