000			01444nab a2200193 4500
005			20260520000827.0
008			260224s2009 xxu
245	0	0	_aMercury removal from coal by leaching with SO2
260			_a _b _cene. 2009
270			_a27/07/2009 ; 27/07/2009
300			_a4 p. ; 774-778
520			_aTranscripción 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.
773	0		_tEnergy & fuels _g23
942			_cARTICULO
100	1		_aHa Cho, Eung _941585
100	1		_aChateker, Poornima _941586
100	1		_aGarlapalli, Ravinder _941587
999			_c170194 _d170194