| Main Title |
Measurement and prediction of the resistivity of ash/sorbent mixtures produced by sulfur oxide control processes / |
| Author |
Young, Ronald P.
|
| CORP Author |
Southern Research Inst., Birmingham, AL. Environmental Sciences Dept.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, |
| Year Published |
1991 |
| Report Number |
EPA/600/7-91/009; SRI-ENV-88-1076 |
| Stock Number |
PB92-126812 |
| Subjects |
Flue gases--Desulfurization ;
Fly ash ;
Sorbents ;
Flue gases--Desulphurization
|
| Additional Subjects |
Air pollution sampling ;
Air pollution control equipment ;
Electrical resistivity ;
Sorbents ;
Fly ash ;
Mixtures ;
Electrostatic precipitators ;
Performance evaluation ;
Sulfur oxides ;
Chemical composition ;
Combustion products ;
Particle size distribution ;
Conductivity
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB92-126812 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
55 pages : illustrations ; 28 cm |
| Abstract |
The report describes the development of (1) a modified procedure for obtaining consistent and reproducible laboratory resistivity values for mixtures of coal fly ash and partially spent sorbent, and (2) an approach for predicting resistivity based on the chemical composition of the sample and the resistivities of the key compounds in the sample that are derived from the sorbent. Furnace and cold-side sorbent injection technologies for reducing the emission of sulfur oxides from electric generating plants firing medium- to high-sulfur coal are under development for retrofit applications. The particulate resulting from injecting this sorbent will be a mixture of coal fly ash and partially spent sorbent. The presence of this sorbent causes the resistivity of the mixture to be significantly higher than that of the fly ash alone. Since higher resistivity dusts are more difficult to collect in an electrostatic precipitator (ESP), accurate knowledge of the resistivity of the mixture is needed to determine if the ESP will operate within an acceptable efficiency range. |
| Notes |
Includes bibliographical references (page 45). Microfiche. |
