A solid ore containing 82 wt% FeS2 and 18 wt% inert is fed to a furnace....
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A solid ore containing 82 wt% FeS2 and 18 wt% inert is fed to a furnace. Dry air is fed in 40% excess of the amount theoretically required to oxidize all of the sulfur in the ore to SOg. A pyrite conversion of 85% is obtained, with 40% of FeS2 converted to form sulfur dioxide and the rest forming sulfur trioxide. Two streams leave the roaster: a gas stream containing SO3, SO2, 02, and N2, and a solid stream containing unconverted pyrite, ferric oxide (Fe203), and inert. Using 100 kg/min of ore as a basis, calculate the rate of Fe;03 production (kg/min) in the outlet solid stream, and the total molar flow and composition of the outlet gas stream. The following reactions take place in the furnace: (46.5 kg) 15 FeS2 (s) +02 (g) → Fe,O3(s) +4 SO, (g) 2 2FES, (s) +O, (g)→ Fe,O, (s) +4 SO, (g) A solid ore containing 82 wt% FeS2 and 18 wt% inert is fed to a furnace. Dry air is fed in 40% excess of the amount theoretically required to oxidize all of the sulfur in the ore to SOg. A pyrite conversion of 85% is obtained, with 40% of FeS2 converted to form sulfur dioxide and the rest forming sulfur trioxide. Two streams leave the roaster: a gas stream containing SO3, SO2, 02, and N2, and a solid stream containing unconverted pyrite, ferric oxide (Fe203), and inert. Using 100 kg/min of ore as a basis, calculate the rate of Fe;03 production (kg/min) in the outlet solid stream, and the total molar flow and composition of the outlet gas stream. The following reactions take place in the furnace: (46.5 kg) 15 FeS2 (s) +02 (g) → Fe,O3(s) +4 SO, (g) 2 2FES, (s) +O, (g)→ Fe,O, (s) +4 SO, (g)
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Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-1119498759
4th edition
Authors: Richard M. Felder,? Ronald W. Rousseau,? Lisa G. Bullard
Posted Date:
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