Abstract
The removal of SO2 and NOx emitted by marine diesel engines was still very important for the development of shipping industry. In this study, a novel method based on seawater/urea peroxide composited absorption solution was used to remove NOx and SO2 efficiently and can keep nitrate concentration lower in liquid phase. And the key parameters were investigated, such as removal efficiency, ions concentration, solution composition, reaction temperature and absorbent concentration. The selected reaction temperature and urea peroxide concentration was 60 °C and 5%, and the SO2 and NOx removal efficiency was close to 100% and 80% respectively. Compared with fresh water, the seawater can improve the NOx absorption capacity of urea peroxide solution, so as to meet the emissions regulation requirements. The concentration of NO3− increased with the oxygenation and absorption capacity of the absorbing solution increasing. However, the addition of seawater could make the concentration of NH4+ decrease a little bit. The ions concentration also increased with the reaction time, and when it came to practical application, the reaction time should be strictly controlled.
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.
