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Heterogeneous Oxidation Kinetics of Calcium Sulphite(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年02期
Page:
172-176
Research Field:
Publishing date:

Info

Title:
Heterogeneous Oxidation Kinetics of Calcium Sulphite
Author(s):
ZhongQin
School of Chemical Engineering,NUST,Nanjing 210094
Keywords:
f lue g as desul furizat ion kinet ics equat ions heterogeneous oxidation calcium sulphite
PACS:
O643
DOI:
-
Abstract:
The heterogeneous ox idat ion kinetics of calcium sulphite in aqueous slurries of spray dry scrubber residues w as studied in a pilot plant under typical condit ions of wet flue gas desulphurizat ion. The observed rate of sulphite oxidation accompanying oxy gen absorpt ion w as found to be 1st order in oxyg en and of the 0th or 0. 75th order in sulphite concentrat ion, respect ively, depending on dif ferent reaction cont rolling steps. T he effect of pH on the observed rate of sulphite oxidat ion w as weak. The oxidation rate increased w ith MnSO4 addition. During the ox-i dat ion of spray dry scrubber residues, SO2 emission has not been observed.

References:

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Last Update: 2013-03-25