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Low NOx Without Flue Gas Recirculation

30 PPM NOx title card

Low NOx, sub 30PPM, often means utilizing a burner with some means of Flue Gas Recirculation.  This technology effectively reduces NOx by using “cooled flue gases from the boiler stack as a source of dilution gas. They are very low in oxygen content and are composed of inert compounds like nitrogen, water vapor and carbon…

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What is NOx?

NOx, or Oxides of Nitrogen is formed in all combustion processed. It is a general term that includes two forms; Nitric Oxide (NO) and Nitrogen Dioxide (NO2).  NO2 is formed when NO is subjected atmospheric Oxygen. What are the Environmental and Health Concerns? When NOx reacts with hydrocarbons and oxygen in the presence of sunlight,…

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What is Combustion?

What is it? Combustion, or burning, is a rapid combination of oxygen with a fuel, resulting in a release of heat and light. The oxygen comes from the combustion air, which is approximately 21% oxygen (O2) and 79% Nitrogen (N2).  Hydrocarbon fuels contain carbon, hydrogen and in some cases, sulfur and nitrogen.  Natural and LP…

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