01444nab a2200193 4500 20260520000827.0 260224s2009 xxu Mercury removal from coal by leaching with SO2 ene. 2009 27/07/2009 ; 27/07/2009 4 p. ; 774-778 Transcripción del resúmen publicado por el autor: This paper is about the pretreatment of coal to remove mercury content prior to coal combustion. The minute amount of mercury in Pittsburgh No. 8 coal (0.177 ppm) was removed by flowing a gas stream containing 10% oxygen and 1000 ppm SO2 into a coal-water slurry at 30 mL/s. A total of 50 g of 35-65 mesh coal was leached each time in 500 mL of solution. The temperature was varied from 50 to 80 °C, and the initial solution pH varied at 5.7, 1.8, and 1.5. It was found that the mercury removal increased from 44.2% at 50 °C to 88.6% at 75 °C at the natural pH (5.7) and after 3 h of reaction time. The pyrite conversions were much lower than those of mercury. Both the mercury and pyrite removals increased as the pH decreased at 71 °C. Mercury removal was high enough to consider the application of this technology to a commercial process. Energy & fuels 23 ARTICULO Ha Cho, Eung 41585 Chateker, Poornima 41586 Garlapalli, Ravinder 41587 170194 170194 0 0 0 0 238013 BAAB BAAB 2026-03-05 200045021 0 200045021 2026-03-05 15:12:27 2026-03-05 ARTICULO