【摘要】 综述了空气深冷和变压吸附分离制氮技术。建立了液氮气化及空气变压吸附分离制氮供气方案运行成本的核算关系式,为使用氮气选择合理的供气方案提供了依据。结合本单位的具体用气需求并根据供气运行成本的核算结果,得出:高压氮气流雾化工艺制备铜合金粉末时,采用液氮气化供应氮气的技术方案较为经济合理。更多还原

【Abstract】 The paper reviews the nitrogen separating technologies of air cryogenic and Pressure Swing Adsorption(SPA).An accounting equation of operation cost for the liquid nitrogen gasification and air pressure swing adsorption is established which provides a basis for selecting a reasonable nitrogen gas supply program.Combined our demand of nitrogen application and based on the calculated result of running cost for two technologies from the equation,it’s concluded that when applying high pressure nitrogen gas atomizing process to produce copper alloy powder,the liquid nitrogen evaporation technology is more economical and reasonable.更多还原