| Main Title |
Development and Pilot Plant Evaluation of Silica-Enhanced Lime Sorbents for Dry Flue Gas Desulfurization (Journal Version). |
| Author |
Jozewicz, W. ;
Jorgensen, C. ;
Chang, J. C. S. ;
Sedman, C. B. ;
Brna, T. G. ;
|
| CORP Author |
Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Publisher |
c1988 |
| Year Published |
1988 |
| Report Number |
EPA-68-02-3988; EPA/600/J-88/177; |
| Stock Number |
PB89-119481 |
| Additional Subjects |
Desulfurization ;
Flue gases ;
Sulfur dioxide ;
Air pollution abatement ;
Air pollution control equipment ;
Calcium hydroxides ;
Sorbents ;
Performance evaluation ;
Design criteria ;
Pilot plants ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-119481 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
11p |
| Abstract |
The paper discusses recent work on lime enhancement and testing at the bench-scale, followed by evaluation of the more promising sorbents in a pilot plant to develop low cost, retrofittable flue gas cleaning technology specifically the development of highly reactive sorbents. Conversion of Ca(OH)2 with SO2 increased several-fold when Ca(OH)2 was slurried with fly ash first and later exposed to SO2 in a laboratory packed bed reactor; Ca(OH)2 enhancement increasing with increased fly ash amount. Diatomaceous earths were very effective reactivity promoters of lime-based sorbents. Analysis of the promoted sorbents revealed the formation of a new phase (calcium silicate hydrates) after hydration, which may be the basis for improved SO2 capture. Fly ash/lime and diatomaceous earth/lime sorbents were tested in a 100 cu m/h pilot facility incorporating a gas humidifier, a sorbent duct injection system, and a baghouse. The inlet SO2 concentration was 1000-2500 ppm. With once-through dry sorbents injection into the humidified flue gas, the total SO2 removal ranged from 50 to 90%. (Copyright (c) 1988 Air Pollution Control Association.) |
| Supplementary Notes |
Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Availability Notes |
Pub. in Jnl. of the Air Pollution Control Association, v38 n6 p796-805 Jun 88. |
| NTIS Title Notes |
Journal article, Oct 86-Feb 88. |
| Title Annotations |
Reprint: Development and Pilot Plant Evaluation of Silica-Enhanced Lime Sorbents for Dry Flue Gas Desulfurization (Journal Version). |
| Category Codes |
68A; 99B |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
901217179 |
| Origin |
NTIS |
| Type |
CAT |
