A coal with 4 percent sulfur, conservatively, will require 32 tons* of limestone per hour, or 0.064 tons per MWe per hour.
Coal cobtaining sulfur is dangerous 
mnli hypothesis: Coal cobtaining sulfur is dangerous  premise: A coal with 4 percent sulfur, conservatively, will require 32 tons* of limestone per hour, or 0.064 tons per MWe per hour.