Off-gas desulfurization process

Details Off-gas desulfurization process Off-gas desulfurization process

B - Operations, Transporting

01

D

23/350

B01D 53/14 (2006.01) B01D 53/50 (2006.01) C01F 11/46 (2006.01)

Patent

CA 1221815

- 1 - TITLE OF THE INVENTION IMPROVEMENT IN THE OFF-GAS DESULFURIZATION PROCESS ABSTRACT OF THE DISCLOSURE In the conversion of sulfur dioxide in an off-gas to gypsum for removal by oxidizing with an oxygen-containing gas while neutralizing with limestone an absorbed solution formed by contacting an off-gas containing sulfur dioxide with an absorbing solution containing an organic carboxylate, the addition of a thiocyanate to the absorbing solution makes it possible to inhibit the decomposi- tion of the organic carboxylic acid in the absorbing solution.

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