ETEC engineers have a long history in addressing and solving NOx Control emission problems through:
- Testing, analyzing and defining the combustion processes by which NOx emissions were generated;
- Providing operational and equipment combustion modifications necessary to reduce NOx emissions; and
- The pioneering of the NOx reduction technologies of: Induced Flue Gas Recirculation (IFGR); Slip Stream Flue Gas Recirculation (FGR); and additional Hybrid Solutions for NOx Control.
ETEC offers effective NOx reduction technologies to:
- Electrical Utilities;
- Large-scale Industrial gas/refinery fuel boilers and process heaters; and
- Smaller Industrial gas/refinery fuel boilers and process heaters.
FGR has been implemented on scores of boilers in the electrical utility industry as well as the industrial sector as an effective means of NOx control in conjunction with additional combustion modifications (CMODS). Because of the large volumes of recirculation gas involved in a utility boiler, most of these installations have relied on dedicated FGR fans to augment the existing Forced Draft (FD) fans in order to accomplish the mixing of the flue gasses with the combustion air.
Through ETEC's NOx control technologies and expertise, we can help you reduce your NOx emissions by up to 90%.
|
|
ETEC offers a far less costly FGR NOx Control technology than its competitors, eliminating the need for a separate FGR fan and windbox mixing device. This technology, known as induced flue gas recirculation (IFGR), utilizes the FD fan to pull (induce) flue gas from the boiler exhaust duct into the combustion air at the fan inlet. The fan also serves as the mixing device. This NOx Control technology is now covered under ETEC Patents No. 6,599,119 & 6,609,907.
|
 Combustion modification has long been recognized as a very cost effective NOx control technology for reducing NOx emissions. ETEC engineers have applied this technology, very effectively, to scores of combustion devices since the early 1970's.
|
ETEC engineers have utilized IFGR in conjunction with other NOx control technologies (also known as "Layered Technologies"), e.g., low NOx burners, overfire air, BOOS, etc. in order to provide optimum combustion performance while minimizing NOx emissions. Up to 90% NOx reductions can be obtained through layered technologies.
|
|
|
ETEC has developed solutions for Utility, Chemical and Refinery clients and has successfully reduced NOx emissions in both Natural Gas as well as Coal fired boilers.
|
 |
| UTILITIES |
|
ETEC has completed Utility IFGR projects from 450mw Electric Utility Boilers to 815mw Electric Utility Boilers reducing emissions up to 90% in combination with Combustion Modifications.
|
|
| REFINERIES/MILLS |
|
ETEC has completed Refinery IFGR projects for 450klb/hr Refinery Boilers, reducing emissions up to 90% in combination with Combustion Modifications.
|
|
| CHEMICAL PLANTS |
|
ETEC has completed Chemical IFGR projects for up to 350klb/hr Chemical Plant Boiler, reducing emissions up to 90% in combination with Combustion Modifications.
|
View our client list with examples of projects and the NOx Reductions achieved
|
|
|
