| Main Title |
Development of Criteria for Extension of Applicability of Low-Emission, High-Efficiency Coal Burners. |
| Author |
Nurick, W. ;
Payne, R. ;
Lee, J. ;
Case, P. ;
Chen, S. ;
|
| CORP Author |
Energy and Environmental Research Corp., Santa Ana, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC. |
| Year Published |
1981 |
| Report Number |
EPA-68-02-2667; EPA-600/7-81-171C; |
| Stock Number |
PB82-197153 |
| Additional Subjects |
Burners ;
Air pollution ;
Nitrogen oxides ;
Combustion products ;
Industrial wastes ;
Performance evaluation ;
Furnaces ;
Design ;
Assessments ;
Sulfur oxides ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB82-197153 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
202p |
| Abstract |
The report describes the third year's efforts in a program to develop criteria for extending the applicability of low-emission, high-efficiency coal burners. For the small-scale fuel studies, 28 coals covering all ranks were tested under a wide variety of conditions to ascertain the impact of coal properties on the fate of fuel nitrogen (N). Significant accomplishments in this part of the program include: (1) bench-scale test results confirm the pilot-scale concept that decreasing the initial air/fuel ratio decreases fuel NOx formation; (2) detailed studies on optimizing a staged combustion system suggest that the stoichiometry producing minimum NOx emissions is a function of both fuel composition and primary-zone conditions; (3) distribution of the total fixed nitrogen (TFN) species--NO, NH3, and HCN--leaving the first stage is strongly dependent on coal composition; (4) distribution of the first-stage fuel N emissions has a significant impact on second-stage exhaust NO emissions (minimum second-stage NO emissions depend on competition between first-stage NO and increased gas - and solid-phase N species); and (5) during staged combustion, increasing the rate of heat extraction from the first stage (fuel-rich zone) decreases the decay of TFN species, but dramatically decreases TFN conversion in the second stage (first-stage extraction reduces exhaust NO emissions). |
| NTIS Title Notes |
Annual rept. no. 3, Oct 79-Oct 80. |
| PUB Date Free Form |
Oct 81 |
| Category Codes |
13A; 94; 68A |
| NTIS Prices |
PC A10/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323814075 |
| Origin |
NTIS |
| Type |
CAT |
