Off-gas desulfurization process

Details Off-gas desulfurization process Off-gas desulfurization process

1984-08-28

1985-11-19

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, C01B 1700

Patent

active

045541400

ABSTRACT:
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 decomposition of the organic carboxylic acid in the absorbing solution.

REFERENCES:
patent: 3928537 (1975-12-01), Saitoh et al.
patent: 4092402 (1978-05-01), Kobayashi et al.
patent: 4155988 (1979-05-01), Karwat et al.

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