Energy Recovery Process of Supercritical Water Oxidation Technology
Supercritical water oxidation technology has the characteristics of high temperature and high pressure.The optimization of energy recovery process is the key to realize the industrialization of supercritical water oxidation technology.In this paper,two kinds of supercritical water energy recovery processes were designed,exergy efficiency and energy efficiency were used as the objective function.The energy recovery under the conditions of preheating temperature 400～600℃,system pressure 21～29 MPa,turbine pressure 0.1～23 MPa and exhaust steam temperature 160～200℃ was studied.The results showed that heat energy recovery was preferred to pressure energy recovery.When the preheating temperature was 600℃,the reaction pressure was 23 MPa,the turbine outlet pressure was 0.10 MPa and the heat exchanger outlet temperature was 211.85℃,the exergy efficiency and energy efficiency were 87.7%and 76.7%,respectively.Preferential recovery of heat energy was beneficial to the development of supercritical water oxidation technology.
Supercritical water oxidationEnergy recovery processPressure energyHeat energy
万方数据
维普
