Sulphur trioxide absorption apparatus and process

Details Sulphur trioxide absorption apparatus and process Sulphur trioxide absorption apparatus and process

C - Chemistry, Metallurgy

01

B

23/113, 23/387

C01B 17/765 (2006.01)

Patent

CA 1233313

Abstract Sulphur Trioxide Absorption Apparatus and Process An absorption tower for absorbing sulphur trioxide in sulphuric acid having distinct upper and lower packed absorption zones wherein substantially all of the sulphur trioxide is absorbed by the sulphuric acid in the lower zone, while in the upper zone the depleted gas stream is significantly cooled. The two zones receive feed acids of different temperatures and different acid irrigation rates. The tower allows of improved energy recovery while providing for environmentally acceptable emission standards.

500132

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