Low NOx Multiple Flame Burner Concept

EPA Contract Number: 68D40067
Title: Low NOx Multiple Flame Burner Concept
Investigators: Kelly, John T.
Small Business: Altex Technologies Corporation
EPA Contact: Manager, SBIR Program
Phase: II
Project Period: September 1, 1994 through April 1, 1997
Project Amount: $164,988
RFA: Small Business Innovation Research (SBIR) - Phase II (1994) RFA Text |  Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)


Stringently regulated ozone nonattainment air quality regions throughout the country will require the implementation of ultra-low NOx systems. Currently, only costly Selective Catalytic Reduction (SCR) systems can achieve 9 ppm NOx. Inexpensive low NOx burners, that can meet the regulations without SCR are urgently needed by industry.

Altex has identified the Multiple Flame Burner (MFB) concept, which uses a combination of flames to control NOx to very low levels. Phase I test results have shown the ability of the MFB to reduce NOx to less than 9 ppm, with good combustion and radiant heat transfer conditions. Most importantly, these results are achieved at a much lower cost than SCR, and lower cost than other ultra-low-NOx burners under development. Using the Phase I test results and cost data, it was estimated that the MFB would be 53 and 54 percent lower in cost to remove a ton of NOx than Flue Gas Recirculation based flame and porous surface burners respectively. This substantial cost advantage will drive the commercialization of the MFB for boiler applications.

With the assistance of a surface burner manufacturer, Altex, will further develop the MFB under the proposed Phase II program. During this program, the MFB design will be refined and tested at larger scale. Economic data will then be refined and the economic benefits of the burner will be quantified. Lastly, Altex and the manufacturer will prepare a plan for burner commercialization.

Supplemental Keywords:

RFA, Scientific Discipline, Air, Toxics, Sustainable Industry/Business, Chemical Engineering, cleaner production/pollution prevention, Sustainable Environment, Chemistry, HAPS, Technology for Sustainable Environment, Civil/Environmental Engineering, Civil Engineering, tropospheric ozone, Engineering, Engineering, Chemistry, & Physics, Environmental Engineering, Nitrogen Oxides, Nox, nitrogren oxides (NOx), low Nox burner, Multiple Flame Burner, flue gas monitor, low NOx, flue gas, low NOx MFB

Progress and Final Reports:

  • Final

  • SBIR Phase I:

    Low NOx Multiple Flame Burner Concept