Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1979-07-11
1981-05-12
Vertiz, O. R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423512A, C01B 1700
Patent
active
042671566
ABSTRACT:
In the process of desulfurizing flue gases in which an alkaline solution of sodium, such as sodium sulfite or sodium hydroxide, is contacted with gases in a scrubber to produce a sodium bisulfite solution, an improved method is provided for substantially reducing the time and equipment required to regenerate the sodium solution. In the method, a lime slurry stream and a sodium bisulfite stream are conflowed into a bifurcated mixing nozzle having a pair of converging inlets and a common outlet. The confluence of the streams in the nozzle creates turbulence which causes the lime slurry to react substantially instantaneously with the sodium bisulfite solution to regenerate the sodium solution which is recycled to the scrubber and a calcium sulfite precipitate which is filtered from the sodium solution and discarded.
REFERENCES:
patent: 2902342 (1959-09-01), Korley
patent: 3419378 (1968-12-01), Kearns
patent: 3911084 (1975-10-01), Wall et al.
patent: 3989797 (1976-11-01), Brady et al.
Berry, Chemical Engineers' Handbook, 3rd Ed. 1950, p. 1203.
Dabbs Joseph C.
Dauerman Leonard
Delaney Brian
Rao Krishna K.
Heller Gregory A.
The Foundation at New Jersey Institute of Technology
Vertiz O. R.
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