氢气纯化过程能量分析与工艺优化OA北大核心

Objective In the hydrogen purification system,in order to analyze the process energy,the influence of oxygen mole fraction in feedstock on heat release from hydrogen-oxygen reaction and reactor temperature was investigated.Method The energy consumption of the electric heater and the amount of cold consumed by the cooler were further calculated by the method of model calculation to enable the optimization of the process flow.Based on this,a new purification process of heat exchange regeneration gas was proposed,and the effects of oxygen mole fraction and logistics flow on system temperature were analyzed.Results The heating can meet the energy requirements only when the oxygen mole fraction is above 0.13%.Compared with the original process,the new heat exchange regeneration gas purification process can save more than 88%of the cooling capacity,and the operating temperature of the system can be maintained without electric heating.Conclusion The new heat exchange regeneration gas purification process can fully use the heat released by the hydrogen and oxygen reaction to heat the cold flow,save the electricity energy consumption and cooling capacity,and reduce operating costs.