OCR Text |
Show United States' Department of Energy that address single-digit NOx levels, one with the Institute of Gas Technology/Tampella and the other with Riley Stoker/Tecogen. In much the same way as in 1989 GRI anticipated the current NOx emissions regulations, these programs attempt to anticipate what the air quality regulatory market will be like at the end of the 20th century. Another Problem - Air Toxics Emissions Even if the new programs to develop ultra-low NOx burners are successful, another problem looms on the horizon. Title III of the CAAA identifies a large number of toxic substances for regulation. While many of these are not of concern to the gas industry, formaldehyde and the smaller aromatics can be produced in a natural gas flame. This is particularly true if the flame is cooler than normal, which is precisely the case with low NOx burners. The problem is that little is known about the formation of these toxic species. GRI has joined a program organized by the Petroleum Environmental Research Forum that addresses the problem. This program is using advanced diagnostics, experiments in the GRIlSandia Burner Engineering Research Laboratory (the BERL is featured in a poster session), and a major computer modeling effort to define the factors influencing air toxics emissions from gaseous flames. The GRI programs aiming to deliver ultra-low NOx burners will be coordinated with this effort so that the new burners are low toxics emitters as well. A later paper titled "Toxic Combustion Byproducts" provides a full description of the program. 10 |