TY - JOUR
AU - Sekine, Masahiko
AB - With tap water as a physical solvent to absorb CO2 from different concentrations of mixed gases (containing CO2 and N2), an apparatus outfitted with a water-film generator was used to enhance the CO2 dissolution rate as well as the contact between the liquid and gas phases. The operational pressure in the absorption tank, induced gas pressure, initial CO2 content, liquid-to-gas ratio, and temperature had a significant effect on the CO2 removal efficiency and its absorption rate in water. On varying the experimental conditions, the CO2 removal ability and absorption rate varied from 22.9 to 90.0% and 4.5 × 10−4–44.4 × 10−4 mol s−1 L−1, respectively. For instance, the removal and absorption rates reached approximately 90.0% and 12.0 × 10−4 mol s−1 L−1, respectively, when the experiment was operated at 10 °C and 0.30 MPa of gas pressure with 35% CO2 inlet gas content and 1.40 liquid-to-gas ratio. Additionally, a statistical tool, the Taguchi method, was applied to evaluate the effects of four parameters thoroughly and systematically. According to the Taguchi analysis results of nine total runs for four independent variables with three levels for each, the two most significant variables for the removal rate were temperature and liquid-to-gas ratio, whereas those for the absorption rate were inlet gas CO2 concentration and gas compressed pressure. These results may provide evidence to aid in the adoption of this method for large-scale CO2 capture from exhaust gases.
TI - Performance of a Carbon Dioxide Removal Process Using a Water Scrubber with the Aid of a Water-Film-Forming Apparatus
JF - Waste and Biomass Valorization
DO - 10.1007/s12649-017-9951-8
DA - 2017-05-20
UR - https://www.deepdyve.com/lp/springer-journals/performance-of-a-carbon-dioxide-removal-process-using-a-water-scrubber-Sf3o3hPxPD
SP - 1827
EP - 1839
VL - 9
IS - 10
DP - DeepDyve
ER -