【摘要】 采用静态容积法测量5A沸石分子筛对CO₂和CH₄的单组份等温吸附曲线,采用低温变压测量不同实验参数对5A沸石分子筛分离CH₄/CO₂混合气体的能力影响。静态实验表明,CO₂和CH₄吸附量随温度的降低而上升,-30℃时CO₂和CH₄在吸附剂上的饱和吸附量最高:分别为4.94 mmol/g和3.0 mmol/g;动态试验表明,增加吸附压力会降低分离效果,减小混合气体分离系数;降低吸附温度有利于CH₄/CO₂分离,提高混合气体分离系数。更多还原

【Abstract】 The isothermal adsorption curves of CO₂and CH₄on 5A zeolite were measured by static volumetric method,the influence of different experimental parameters on the separation of CH₄/CO₂mixture gas from CH₄/CO₂was measured by low temperature pressure.The static experiment showed that the adsorption capacity of CO₂and CH₄on adsorbent was the highest at 30℃with the decrease of temperature:4.94 mmol/g and 3.0 mmol/g,respectively.The dynamic test showed that increasing adsorption pressure can reduce the separation efficiency and decrease the separation coefficient of mixed gas,lower the adsorption temperature is favorable to the separation of CH₄/CO₂and increase the separation coefficient of mixed gas.更多还原