A packed tower is used for absorption of SO from air by contact with aqueous NaOH...
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A packed tower is used for absorption of SO₂ from air by contact with aqueous NaOH solution. The entering gas has 10 vol% SO₂ and the exit gas must contain no more than 0.5 vol% SO₂. The alkaline solution mass flow velocity is 18,000 kg/(m²hr) (dilute solution in water) and the gas mass flow velocity (on SO₂-free basis) is 500 kg/(m² hr). Calculate minimum pH of the alkaline solution entering the top of the tower, to satisfy conditions of the irreversible reaction, weight percentage of NaOH in water solution and packing height if k,a is 97 kmol/(m³ hr) and ka is 2,053 kmol/(m³ hr). Assume that the diffusivity ratio of the electrolyte over SO₂2(I) is 1.2. A packed tower is used for absorption of SO₂ from air by contact with aqueous NaOH solution. The entering gas has 10 vol% SO₂ and the exit gas must contain no more than 0.5 vol% SO₂. The alkaline solution mass flow velocity is 18,000 kg/(m²hr) (dilute solution in water) and the gas mass flow velocity (on SO₂-free basis) is 500 kg/(m² hr). Calculate minimum pH of the alkaline solution entering the top of the tower, to satisfy conditions of the irreversible reaction, weight percentage of NaOH in water solution and packing height if k,a is 97 kmol/(m³ hr) and ka is 2,053 kmol/(m³ hr). Assume that the diffusivity ratio of the electrolyte over SO₂2(I) is 1.2.
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Answer Entering gas has exit gas Answer Lovel of So 05 vol... View the full answer
Related Book For
Fundamentals of Momentum, Heat and Mass Transfer
ISBN: 978-1118947463
6th edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
Posted Date:
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