Influence of Additives on Particular Matter from Heavy Fuel Oil Combustion in a Swirling Flame

Paper from the AFRC 2018 conference titled Influence of Additives on Particular Matter from Heavy Fuel Oil Combustion in a Swirling FlameHeavy fuel oil (HFO) is an economical alternative fuel for power generation due to its low production cost and high energy density. However, incomplete combustion usually takes place because of the presence of long-chain petroleum molecules which also result in high emissions levels. Thus, the novel burner used in the study utilizes a high swirl stabilized turbulent jet flame that has been stabilized to efficiently combust HFO with high residence time and mixture ratio between fuel and air. HFO contains primary contaminants, such as Vanadium (V), Nickel (Ni), and sulfur (about 3.0 wt%), results in corrosion of metal surfaces both near the combustion areas and beyond as well as hard slag deposits. In addition, the formation of SO3 (g) is mainly catalyzed by vanadium pentoxide. To reduce the deterioration effects of corrosion, highly Mg-based fuel oil additive has been tested in magnesium-vanadium weight ratio of 1:1. The present study is to exam the effect of HFO additives on the combustion performance by HFO combustion experiments without and with additives under swirling flame condition, especially on solid particle emissions. Moreover, the particulate matter was analyzed by SEM-EDS and TEM to characterize their morphology. The corrosion effect of the solid particles was evaluated by the PH meter at the cooling end