Record Display for the EPA National Library Catalog


Main Title Oxidative degradation of organic acids conjugated with sulfite oxidation in flue gas desulfurization /
Author Lee, Y. Joseph.
Other Authors
Author Title of a Work
Rochelle, Gary T.
Publisher U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory,
Year Published 1988
Report Number EPA/600-S2-88-018
OCLC Number 742042568
Subjects Organic acids--Deterioration ; Sulfites ; Oxidation ; Flue gases--Desulfurization
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-S2-88-018 In Binder Headquarters Library/Washington,DC 10/31/2018
ELBD ARCHIVE EPA 600-S2-88-018 In Binder Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
Collation 9 pages : illustrations, charts ; 28 cm
Caption title. "Apr. 1988." At head of title: Project summary. Distributed to depository libraries in microfiche. "EPA/600-S2-88-018."
Contents Notes
"Organic acid degradation conjugated with sulfite oxidation has been studied under flue gas desulfurization (FGD) conditions. The oxidative degradation constant, k,2, is defined as the ratio of organic acid degradation rate and sulfite oxidation rate times the ratio of the concentrations of dissolved S(IV) and organic acid. It is not significantly affected by pH or dissolved oxygen in the absence of Mn or Fe. However. k,2 is increased by certain transition metals such as Fe, Co, and Ni and is decreased by Mn and halides. Lower dissolved S(IV) magnifies these effects. A free radical mechanism was proposed to describe the kinetics. Hydroxy and sulfonated carboxylic acids degrade approximately three times slower than saturated dicarboxylic acids; while maleic acid, an unsaturated dicarboxylic acid, degraded an order of magnitude faster. A wide spectrum of degradation products of adipic acid were found including carbon dioxide (the major product), smaller dicarboxylic acids, monocarboxylic acids, other carbonyl compounds, and hydrocarbons."