Trace Elements in Coal and Ash: A Spectroscopic View
Frank E. Huggins
Department of Chemical and Materials Engineering
University of Kentucky, Lexington, KY
Friday, February 8, 2002 3:30pm
Ben Bandy Conference Center
Center for Applied Energy Research
The presentation will consist of an overview of various X-ray absorption fine structure (XAFS) spectroscopic investigations into the occurrence of trace elements in coal, ash, and particulate matter and related environmental issues. After a brief review of the technique, the following topics will be discussed:
- Use of XAFS spectroscopy for the determination of basic information related to the mode of occurrence of elements in coal.
- Assessment of the hazards posed by various trace elements, designated as hazardous air pollutants, in ash products and fine particulate matter emissions derived from coal combustion.
- XAFS identification of mercury species on various sorbent materials proposed for capture of mercury from combustion flue gases.