The Thermodynamic Behaviour of Potassium during Rice Straw Combustion

The thermodynamic behaviour of potassium during rice straw combustion are studied based on the chemical thermal equilibrium analysis as well as simulating the influence of additives by adding aluminium and sulfur to the system. The chemical morphology and physical phase of potassium are compared under the oxidizing atmosphere in a temperature range from 500°C~1400°C. The results show that the behaviour of potassium in a combustion system is primarily influenced by sulfur, chlorine and to a less degree of silica, and adding aluminium or sulfur to the combustion system has a great effect on the chemical morphology and physical phase of potassium.