Unformatted text preview: scuss the chemistry of typical SO2 scrubbing processes. b) A 400‐MW, 60% efficient power plant burns coal with a calorific value of 5000 kcal/kg and a sulphur content of 8%. It is intended to remove 95% of the SO2 from the combustion off‐gases by scrubbing with a solution of sodium hydroxide. Regeneration will be done with slaked lime. Provide a flow sheet for this scrubbing process, and estimate the daily consumption rates of the reagents used, assuming 10% loss of the scrubbing reagent. 1kWh = 860 kcal Atomic weights: Na = 23 Ca = 40 S = 32 H =...
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- Spring '13