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空气预纯化系统中,为了更好地设计吸附器并保证纯化系统的安全运行,必须进行传质区长度和透过曲线的计算。本文基于透过曲线法,实验研究空气各组分浓度、入口温度、流量及竞争吸附等多因素耦合作用下,CO_2与H_2O在纯化器上的动态吸附特性。结果表明,空气各参数变化均会对CO_2在13X分子筛上吸附传质过程造成一定影响,其中空气入口温度是影响13X分子筛上CO_2传质区长度的最显著影响因素;空气中CO_2浓度对13X分子筛上CO_2传质区长度的影响呈负相关,而H_2O浓度对活性氧化铝上H_2O传质区长度的影响呈正相关,两者呈相反趋势。
Air pre-purification system, in order to better design the adsorber and ensure the safe operation of the purification system, the mass transfer zone length and the transmission curve must be calculated. Based on the curve method, the dynamic adsorption characteristics of CO_2 and H_2O on the purifier were experimentally studied under the multi-factor coupling of air concentration, inlet temperature, flow rate and competitive adsorption. The results show that the change of air parameters will affect the adsorption and mass transfer of CO_2 on 13X zeolites. The air inlet temperature is the most significant factor affecting the mass transfer length of CO_2 on 13X zeolites. The CO_2 concentration in air affects the mass transfer of 13X molecular sieves The effect of H 2 O concentration on the length of H 2 O on the active alumina was positively correlated with the opposite trend.