Pollutant reduction and energy saving in industrial sectors by applying high temperature air combustion method

Abstract

In recent decade energy demand and oil resources limitation have been appeared as one of the main concerns of humankind and this fact has led scientists to find efficient ways for fuel combustion. In conventional combustion, the pollutants reduction is associated with losses efficiency. In other word, low pollutant and high efficiency are not fulfilled simultaneously by applying traditional combustion. High temperature air combustion (Hitac) is a new technology in combustion which has received more attention during this decade because of low emissions and more energy saving. Experiments illustrate that the flame is disappeared when preheated and diluted oxidizer is applied in Hitac. Although, low concentration of oxygen is charged in Hitac furnace, sustainability of combustion is fulfilled when oxidizer is preheated higher than fuel auto-ignition temperature. This review paper tries to show the importance of Hitac systems in energy saving and abatement of pollutant formation, and discuses about necessity of transient from conventional combustion to Hitac in industrial sectors.