Abstract
Oxy-fuel combustion is one of the near-zero emission clean coal technologies which can realize large-scale CO2 capture, low NOx emission, and easy removal of SO2. This paper focuses on the reduction mechanism of NOx during oxy-fuel combustion. The influence of high concentration CO on the NO reduction with coal char, ash, and various metal materials has been studied in a laboratory-scale quartz reactor. Experimental results indicate that the presence of high concentration CO plays a crucial role in reducing NO on the coal char surfaces. Effect of NO concentration varies with different reaction conditions and different char types, which may be attributed to the different kinetic reaction orders. Moreover, both the reaction temperature and char prepared temperature have a pronounced effect on the char–NO–CO reaction. The active components in coal ash exhibit a clearly catalytic effect on the NO reduction with high concentration CO. Furthermore, the catalytic effect of various metal oxides, as well as coal a...
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.
