FUEL 9 |
| The mercury emitted from power stations burning coal has been generating more and more concern. Before sorbent injection is used in practice, its Hg capture ability needs to be evaluated. The ICSET at Western Kentucky University (WKU) conducted experiments on lab- and pilot-scale reactors it developed to evaluate mercury sorbents. A semi-continuous mercury monitor (SCMM) was adopted to measure change of mercury concentration in the flue gas. The effects of residence time, sorbent injection rate and temperature inside the reactor were studied. The results show the developed systems can work well to evaluate removal efficiency of sorbents. The mercury removal efficiencies of tested sorbents varied from 97% down to 23%. Sorbent A-01 has good removal efficiency ranging from 85% to 95% under different working conditions, while the efficiency of A-02 varied from 33% to 50%. The experiments demonstrate A-01, a non-carbon based sorbent, is very good mercury sorbent. |
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Transformation and Capture of Mercury and Trace Metals from Combustion Sources
9:00 AM-11:45 AM, Sunday, 10 September 2006 Palace -- Mendocino Room, Oral
Division of Fuel Chemistry |