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In this work, the fate of mercury in a bubbling fluidized bed combustor working under oxy-combustion conditions has been studied and compared with air combustion. The influence of burning three different rank coals, with sulphur content ranging from 0.65% to 5.17%, on Hg partitioning has been studied. The presence of limestone as sorbent for SO2 capture as well as the concentration of O2 at the entrance...
The environmental implications of mercury do not correspond only to the emissions to the atmosphere; the quality of the captured CO2 to be transported and sequestered has been subject of research, concerning trace quantities of heavy metals participating in mineralization and precipitation reactions in sequestration conditions. For oxycoal combustion, mercury is not an environmental issue alone but...
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