A 1000 MW pulverized coal fired steam plant (40% efficient) uses coal with a heat content of 11,250 BTU/lb. The coal has an ash content of 9%. Within that 9%, 65% is fly ash and the rest 35% is the bottom ash that can be regarded as a solid waste. The coal also has a sulfur content of 2%. What is the particular matter emission rate contributed by fly ash (ton fly ash/ hour)? Sulfur is removed in the form of CaSO3 particles using CaO, with 100% utilization of CaO. If the plant achieves 95% sulfur removal, what is the final sulfur emission rate (ton SO2/hour)? What is the solid contributed by formed CaSO3 (ton CaSO3 / hour)? What is the total solid waste produced by the plant (bottom ash + formed CaSO3, ton/hour)

Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter6: Biological Processes
Section: Chapter Questions
Problem 6.3P
Question
100%

A 1000 MW pulverized coal fired steam plant (40% efficient) uses coal with a heat content of 11,250 BTU/lb. The coal has an ash content of 9%. Within that 9%, 65% is fly ash and the rest 35% is the bottom ash that can be regarded as a solid waste. The coal also has a sulfur content of 2%. What is the particular matter emission rate contributed by fly ash (ton fly ash/ hour)? Sulfur is removed in the form of CaSO3 particles using CaO, with 100% utilization of CaO. If the plant achieves 95% sulfur removal, what is the final sulfur emission rate (ton SO2/hour)? What is the solid contributed by formed CaSO3 (ton CaSO3 / hour)? What is the total solid waste produced by the plant (bottom ash + formed CaSO3, ton/hour)

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