Desulfurization method and device for sulfuric acid production device
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United States of America Patent
Stats
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Jun 27, 2017
Grant Date -
Oct 22, 2015
app pub date -
Oct 25, 2013
filing date -
Nov 30, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This desulfurization device is for desulfurizing a discharge gas which contains sulfur oxides and which was discharged from a device for sulfuric acid production that includes a concentrated-sulfuric-acid production step in which sulfur trioxide gas obtained by oxidizing sulfur dioxide gas is absorbed in an aqueous sulfuric acid solution while supplying water thereto to thereby produce sulfuric acid having a concentration as high as 90 wt % or more but less than 99 wt %, the desulfurization device comprising: a desulfurization tower in which the sulfur oxides are removed from the discharge gas and, simultaneously therewith, dilute sulfuric acid is formed from the sulfur oxides; and a dilute sulfuric acid mixer which, in the concentrated-sulfuric-acid production step, mixes the dilute sulfuric acid with the aqueous sulfuric acid solution.
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International Classification(s)
- 2013 Application Filing Year
- C01B Class
- 1318 Applications Filed
- 1164 Patents Issued To-Date
- 88.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C01B Class
- 0 % this patent is cited more than
- 8 Age
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