Record Display for the EPA National Library Catalog


Main Title Technical Assistance Document for Monitoring Sulfuric Acid Vapor from Stationary Sources.
Author Winberry, W. T. ;
CORP Author Engineering-Science, Inc., Durham, NC.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Year Published 1985
Report Number EPA-68-01-6312; EPA/600/4-85/005;
Stock Number PB85-143261
Additional Subjects Air pollution ; Sulfuric acid ; Fuels ; Concentration(Composition) ; Gas analysis ; Sampling ; Chemical analysis ; Industrial wastes ; Combustion products ; Stationary sources ; Air pollution sampling ; Air pollution detection
Library Call Number Additional Info Location Last
NTIS  PB85-143261 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 150p
When fuels containing sulfur are burned, almost quantitative formation of sulfur dioxide (SO2) occurs. As much as 5-8% of the sulfur dioxide emitted may be converted to sulfur trioxide either by atomic oxygen in the combustion zone or by efficient catalysis of heavy metal contaminants in the fuel oil. At moisture levels above four percent and temperatures below 300F (149C), theoretical models indicate that the sulfur trioxide quickly combines with the water vapor present to form sulfuric acid vapor. The composition and concentration of the chemical species emitted are influenced by fuel characteristics, boiler design and operation, and emission controls. It is precisely this combination of emissions of different species of sulfates that has hindered the characterization and measurement of sulfuric acid vapor from combustion sources. This document describes the different types of monitoring principles with their advantages and limitations. Evaluation of different monitoring techniques--both laboratory and field evaluation--are included in the document. Also included is a section dealing with generating known concentration of sulfuric acid vapor used in evaluating monitoring techniques.