Selenium sampling and analysis in coal combustion systems
Book
·
OSTI ID:257181
- CONSOL Inc., Library, PA (United States)
The Clean Air Act Amendments of 1990 identified 189 elements and compounds that are classified by the US EPA as air toxics. Among these are 11 inorganic trace elements found in coal. The US EPA developed and validated a sampling train (Method 29) for the measurement of these trace elements in flue gas from municipal waste combustors. This method also has been used in several trace element sampling programs conducted at coal-fired utilities. This presentation addresses the difficulties experienced in measuring selenium (Se) at coal-fired facilities. The US DOE conducted a Utility Air Toxics Assessment program consisting of measurements and material balance studies at eight coal-fired power plants. At all sites, the Se material balance closures were significantly low. Since then, CONSOL R and D has conducted a sampling and analytical program with the objective of determining the reasons for the low Se material balances. Results to date from this program will be discussed.
- OSTI ID:
- 257181
- Report Number(s):
- CONF-950952--
- Country of Publication:
- United States
- Language:
- English
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