The effect of residence time on the CO2 reduction from combustion flue gases by an AC ferroelectric packed bed reactor

An experimental investigation was conducted to reduce CO₂ from combustion gases using an AC ferroelectric packed bed reactor. This ferroelectric packed bed reactor consists of two mesh electrodes packed with ferroelectric particles between them. An AC voltage is applied to the reactor to generate partial or spark discharges. The results show the following: the CO₂ gas reduction rate increases with increasing flue gas residence time and primary applied power; the CO₂ gas reduction rate increases with decreasing gas flow rate and dielectric constant of packed ferroelectric particles; and the CO₂ concentration is reduced by up to 18000 ppm, and 108 g of CO₂ are removed by 1 kWh of primary applied energy used in the packed-bed reactor