500 LB/HR Pilot Combustor and Pulse Jet Fabric Filter |
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Most of the research on mercury measurement
and control has been conducted on a pilot combustion unit with a design rate of 500
pounds of coal per hour and a pulse-jet
fabric filter for particulate control. |
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P S Analytical Sir Gallahad CEM Installed on Pilot Combustion Unit |
Filter Oven and Sample Line
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Analyzer with Computer, Switching Box
and Calibration Module
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Conditioning Box
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Recently, an on-line analyzer for mercury measurement was purchased and installed to
obtain near-real-time readings
of mercury concentration
and speciation in flue gas. |
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Typical Output of CEM |
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The on-line analyzer shows trends in total mercury concentration
as a function of time. |
(Click on image to see larger view) |
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High Unburned Carbon Test on CERF |
| Tests were conducted using the on-line analyzer to examine the effects of high unburned carbon under low excess (XS) air conditions |
(Click on image to see larger view) |
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Comparison of Total and
Speciated Mercury |
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| Under a Cooperative Research and Development Agreement with Frontier Geosciences, Inc., a solid sorbent method was compared with the standard ASTM (i.e., "Ontario-Hydro") method, showing excellent agreement for both total and speciated forms of mercury in flue gas. |
(Click on image to see larger view) |
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Comparison of PSA CEM vs Ontario-Hydro vs FSMS |
| The measurements using three different methods (on-line analyzer vs Frontier Geosciences solid sorbent vs Ontario-Hydro method) showed excellent agreement at extremely low flue gas concentrations (< 1.0 micrograms per dry standard cubic meter). |
(Click on image to see larger view) |
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Deepwater Technology
