Question

Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.

a.

reduce SO₂ content in

b.

catalytically convert SO₂ to SO₃ in

c.

increase the dew point of

d.

none of these.

Answer: (a).reduce SO₂ content in

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Q. Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.

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