Abstract
Technologies for simultaneous removal of SO2 and NOx have been attracting great attention due to its cost-effective possibility compared to single pollutant treating counterparts. To this end, a hybrid system that integrates NTP with γ-Al2O3 as adsorbent was developed to remove SO2 and NOx simultaneously from the exhaust gas. The adsorption capacity of γ-Al2O3 for NOx was significantly enhanced by the presence of NTP. The overshooting of effluent concentration of NOx is due to replacement of adsorbed NOx by SO2, revealing that the competitiveness between NOx and SO2 for adsorption site. The intraparticle diffusion model fitted well the adsorption of SO2/NOx mixture under the irradiation of NTP, pointing out that the diffusion rate of target molecules may be the rate-controlling step for this process. Langmuir isotherm is suitable for describing the adsorption of NOx and SO2 on γ-Al2O3 under the irradiation of NTP. The effects of Pd, flow rate, and bed height on the breakthrough characteristics of SO2/NOx adsorption were determined by the experiment and intraparticle diffusion model. The kid for both NOx and SO2 decreased with increasing Pd from 6.5 to 7.5 W and bed height from 1.0 to 2.0 cm, respectively. The possible reason for the significant enhancement of NOx adsorption capacity under the irradiation of NTP is proposed based on the experimental and theoretical data.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
