| Main Title |
Lignosulfonate-Modified Calcium Hydroxide for Sulfur Dioxide Control. |
| Author |
Kirchgessner, D. A. ;
Lorrain, J. M. ;
|
| CORP Author |
Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Year Published |
1987 |
| Report Number |
EPA-68-02-3988; EPA/600/J-87/284; |
| Stock Number |
PB88-185236 |
| Additional Subjects |
Sulfur dioxide ;
Calcium hydroxides ;
Boilers ;
Air pollution control ;
Sorbents ;
Nitrogen oxides ;
Limestone ;
Lignocellulose ;
Removal ;
Particle size ;
Deagglomeration ;
Reprints ;
LIMB process ;
Lignosulfonate
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB88-185236 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
6p |
| Abstract |
The article discusses the use of lignosulfonate-modified calcium hydroxide Ca(OH)2 for sulfur dioxide (SO2) control. The limestone injection multistage burner (LIMB) process is currently being developed at the U.S. EPA as a low cost retrofittable technology for controlling oxides of sulfur and nitrogen from coal-burning utility boilers. The most effective commercial calcium-based sorbent for this process is Ca(OH)2, with SO2 removals of about 50%. Additions of calcium lignosulfonate up to 1.5 mass % of the dry product, introduced with the water of hydration, increase the SO2 capture of the resulting Ca(OH)2 to 60%. This is achieved through particle size reduction in the modified hydroxides. The principal mechanism of size reduction appears to be deagglomeration of the Ca(OH)2 crystals; a secondary benefit is derived from crystal size reduction. (Copyright (c) 1987 by the American Chemical Society.) |
| Supplementary Notes |
Pub. in Industrial and Engineering Chemistry Research, v26 n11 p2397-2400 1987. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Lignosulfonate-Modified Calcium Hydroxide for Sulfur Dioxide Control. |
| PUB Date Free Form |
c1987 |
| Category Codes |
68A; 99B |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
814620996 |
| Origin |
NTIS |
| Type |
CAT |
