NIOSHTIC-2 Publications Search
The chemical reactions of sulfur in the citrate process for flue gas desulfurization.
Authors
Marchant WN; May SL; Moore BW; Simpson WW
Source
Salt Lake City, UT: U.S. Department of the Interior, Bureau of Mines, RI 8540, 1981 Jan; :1-23
NIOSHTIC No.
10006644
Abstract
The Bureau of Mines performed chemical research to elaborate details of sulfur chemistry pertaining to the citrate flue gas desulfurization process in which sulfur dioxide (SO2), absorbed (as bisulfite ion) in a buffered sodium citrate solution, is reduced by hydrogen sulfide (H2S) according to the overall reaction 2H2S+HSO3- +H+->3S+3H2O. The rate-limiting step in the process was shown to be the reduction by H2S of thiosulfate (S2O32-) that is formed as an intermediate. Pseudo first-order kinetic measurements were made at room temperature to retard the reaction sufficiently that adequate analysis was possible.
Keywords
Sulfur; Air pollution; Chemical reactions; Reaction kinetics; Absorbers; Materials; Flue gas desulfurization; Citrate process
Publication Date
19810101
Document Type
IH; Report of Investigations
Fiscal Year
1981
NTIS Accession No.
PB81-230286
Identifying No.
RI-8540
NIOSH Division
SLRC
Source Name
Salt Lake City, UT: U.S. Department of the Interior, Bureau of Mines, RI 8540
State
UT
Page last reviewed: May 11, 2023
Content source:
National Institute for Occupational Safety and Health
Education and Information Division