Abstract
The partitioning of twelve trace elements (Be, V, Cr, Mn, Ni, Cu, Zn, As, Se, Cd, Hg and Pb) in combustion products were carried out in this work. Samples of raw coal (RC), bottom ash (BA), fly ash (FA) were collected from China power plants and heating stations. The relative enrichment factors (RE) were calculated, and the influences of temperature, boiler types, coal type and characteristics of trace elements were discussed. The results indicate that only As, Se, Cd, Pb are strongly depended on temperature between 700 °C and 830 °C. As, Se, Hg have low REs in both BA and FA in three kinds of boiler, whereas Cr, Zn, Pb have low REs only in BA. Mass balance suggests that trace elements can be classified into four groups based on their volatility. The results of this study were based on China's actual power plants and heating stations, and the data could be used as a reference to the selection of coal, boiler type and operate temperature.
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.
