Method for measuring oxidation-reduction potential in a flue gas

Details Method for measuring oxidation-reduction potential in a flue gas Method for measuring oxidation-reduction potential in a flue gas

1997-08-22

1999-03-09

Snay, Jeffrey

Chemistry: analytical and immunological testing

Condition responsive control

436137, 436175, G01N 2700

Patent

active

058799451

ABSTRACT:
In a flue gas desulfurization process based on the wet lime-gypsum method, the controlled oxidation of sulfites, by comparison of the redox potential of an absorbing fluid in a sample tank and the redox potential of the absorbing fluid in a completely oxidized state in a reference tank, and adjustment of the rate of air flow through the absorbing fluid, is improved by removing peroxides from the absorbing fluid in the reference tank before passing air therethrough to effect oxidization to a completely oxidized state. The method avoids instability due to the presence of peroxides in the absorbing fluid.

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patent: 5433936 (1995-07-01), Ukawa et al.
patent: 5560893 (1996-10-01), Okino et al.
patent: 5595713 (1997-01-01), Gohara et al.

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