Fundamentals of Mercury Oxidation in Flue Gas

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

University of Utah

关键词: 01 Coal, Lignite, And Peat;    Oxidation;    Kinetics;    Simulation;    Mercury;   

DOI  :  10.2172/860439
RP-ID  :  none
RP-ID  :  FG26-03NT41797
RP-ID  :  860439

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 2 results for the experimental and modeling tasks. Experiments in the mercury reactor are underway and interesting results suggested that a more comprehensive look at catalyzed surface reactions was needed. Therefore, much of the work has focused on the heterogeneous reactions. In addition, various chemical kinetic models have been explored in an attempt to explain some discrepancies between this modeling effort and others.