Process and apparatus for reducing the so.sub.2 content of a...

Details Process and apparatus for reducing the so.sub.2 content of a... Process and apparatus for reducing the so.sub.2 content of a...

B - Operations, Transporting

01

J

165/2, 23/348

B01J 8/10 (2006.01)

Patent

CA 1097486

ABSTRACT OF THE DISCLOSURE In a process and apparatus for reducing the sulfur dioxide content of a hot flue gas, it is known to bring a lime slurry into contact with the gas to remove sulfur dioxide there- from and leave a highly liquid waste sludge product the dis- posal of which is a serious problem. In this invention, during the contact, the lime slurry flows from a scrubbing zone to a drying zone while the gas flows from the drying zone to the scrubbing zone, with the result that the waste sludge product is efficiently dewatered to a low moisture content by evapora- tion in the drying zone from the heat of the incoming flue gas and is thereby made easily disposable and exceptionally suitable for use as landfill.

275844

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