Nature protection technologies

1.1.2.1.2. Non-stoichiometric combustion (Biased Burner Firing — BBF)

Part 1. AIR PROTECTION FROM POWER INDUSTRY EMISSIONS

1.1. Nitrogen oxide emission reduction

1.1.2. Technological methods for reduction of nitrogen oxide formation in boilers at combustion

of different types of organic fuel

1.1.2.1. Regime and commissioning activities for nitrogen oxide emission reduction

1.1.2.1.2. Non-stoichiometric combustion (Biased Burner Firing — BBF)

Roslyakov P.V., MPEI(TU)

Power boilers usually have several stages of burners or a few burners in one stage, at least. This allows to implement a method of non-stoichiometric combustion without any additional costs.

Non-stoichiometric combustion isn’t a conventional way of fuel combustion, arranging the separate reduction (α < 1) and oxidation (α > 1,2…1,25) combustion zones in the furnace while maintaining the traditional excess air at the furnace outlet.