The potential releases of toxic trace elements such as mercury, lead and arsenic call for emission control during fluidised bed (FB) combustion, pyrolysis or gasification of waste-derived fuels and fossil fuels. Control measures for sulphur oxides, nitrogen oxides and particulates effectively remove many other pollutants from the exhaust gases as well, but mercury and several other trace elements are already problematic and this situation will only worsen with time. Besides the effect of temperature, gas atmosphere and halogens, the presence of other species, for example metal oxides, have an effect on under which conditions and in what form trace elements are released from fuels. Understanding the events of trace elements release from solid fuels during the pyrolysis or char combustion stage will provide a key to manipulating their partitioning and controlling their emissions. Pyrolysis experiments were made with coal, sewage sludge and automotive shredder residue (ASR) in a two-stage fluidised bed combustion (FBC) facility. An Ontario Hydro measurement train plus an additional sampling system were used to measure mercury and around fifteen other trace elements in the gases, and also char samples were taken and analysed. Results from these experiments are presented. An issue that is addressed explicitely is the bed material, which may be contaminated with significant amounts of toxic trace elements.
Skip Nav Destination
18th International Conference on Fluidized Bed Combustion
May 22–25, 2005
Toronto, Ontario, Canada
Conference Sponsors:
- Advanced Energy Systems
ISBN:
0-7918-4183-9
PROCEEDINGS PAPER
Partitioning of Mercury and Other Trace Elements From Coal and Waste-Derived Fuels During Fluidised Bed Pyrolysis Available to Purchase
Ron Zevenhoven,
Ron Zevenhoven
Helsinki University of Technology, Espoo, Finland
Search for other works by this author on:
Jaakko Savolahti,
Jaakko Savolahti
Helsinki University of Technology, Espoo, Finland
Search for other works by this author on:
Liselotte Verhoeven,
Liselotte Verhoeven
Helsinki University of Technology, Espoo, Finland
Search for other works by this author on:
Loay Saeed
Loay Saeed
Helsinki University of Technology, Espoo, Finland
Search for other works by this author on:
Ron Zevenhoven
Helsinki University of Technology, Espoo, Finland
Jaakko Savolahti
Helsinki University of Technology, Espoo, Finland
Liselotte Verhoeven
Helsinki University of Technology, Espoo, Finland
Loay Saeed
Helsinki University of Technology, Espoo, Finland
Paper No:
FBC2005-78124, pp. 535-549; 15 pages
Published Online:
October 7, 2008
Citation
Zevenhoven, R, Savolahti, J, Verhoeven, L, & Saeed, L. "Partitioning of Mercury and Other Trace Elements From Coal and Waste-Derived Fuels During Fluidised Bed Pyrolysis." Proceedings of the 18th International Conference on Fluidized Bed Combustion. 18th International Conference on Fluidized Bed Combustion. Toronto, Ontario, Canada. May 22–25, 2005. pp. 535-549. ASME. https://doi.org/10.1115/FBC2005-78124
Download citation file:
9
Views
Related Proceedings Papers
Related Articles
The Study of Partitioning of Heavy Metals During Fluidized Bed Combustion of Sewage Sludge and Coal
J. Energy Resour. Technol (June,2006)
In-Furnace Sulfur Capture by Cofiring Coal With Alkali-Based Sorbents
J. Energy Resour. Technol (July,2017)
Reduction of Sulfur Dioxide Emissions by Burning Coal Blends
J. Energy Resour. Technol (May,2016)
Related Chapters
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Reference Method Accuracy and Precision (ReMAP): Phase I
Reference Method Accuracy and Precision (ReMAP): Phase 1 (CRTD Vol. 60)
Conclusions
Clean and Efficient Coal-Fired Power Plants: Development Toward Advanced Technologies