Fundamentals of Mercury Oxidation in Flue Gas

Lighty, JoAnn S. ; Silcox, Geoffrey ; Fry, Andrew ; Helble, Joseph ; Krishnakumar, Balaji

University of Utah

关键词: Sulfur Dioxide;    01 Coal, Lignite, And Peat;    Oxidation;    Mercury;    Coal;   

DOI  :  10.2172/896137
RP-ID  :  None
RP-ID  :  FG26-03NT41797
RP-ID  :  896137

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this project is to understand the importance of and the contribution of gas-phase and solid-phase coal constituents in the mercury oxidation reactions. The project involves both experimental and modeling efforts. The team is comprised of the University of Utah, Reaction Engineering International, and the University of Connecticut. The objective is to determine the experimental parameters of importance in the homogeneous and heterogeneous oxidation reactions; validate models; and, improve existing models. Parameters to be studied include HCl, NO{sub x}, and SO{sub 2} concentrations, ash constituents, and temperature. This report summarizes Year 3 results for the experimental and modeling tasks. Experiments have been completed on the effects of chlorine. However, the experiments with sulfur dioxide and NO, in the presence of water, suggest that the wet-chemistry analysis system, namely the impingers, is possibly giving erroneous results. Future work will investigate this further and determine the role of reactions in the impingers on the oxidation results. The solid-phase experiments have not been completed and it is anticipated that only preliminary work will be accomplished during this study.