
(1)4FeS2 + 11O2=2Fe2O3 + 8SO24x(56+32.06x2) 8x(32.06+16x2) 480.48 512.48SO2减少 1995-1800=195万吨FeS2减少 195÷512.48×480.48=182.82万吨煤减少 182.82÷5%=3656万吨(2)2SO2+O2=2SO3, SO3+H2O=H2SO4SO2 → H2SO464.06 98减少排放硫酸 =195÷64.06×98=298.31万吨

(1)4FeS2 + 11O2=2Fe2O3 + 8SO24x(56+32.06x2) 8x(32.06+16x2) 480.48 512.48SO2减少 1995-1800=195万吨FeS2减少 195÷512.48×480.48=182.82万吨煤减少 182.82÷5%=3656万吨(2)2SO2+O2=2SO3, SO3+H2O=H2SO4SO2 → H2SO464.06 98减少排放硫酸 =195÷64.06×98=298.31万吨