【摘要】 进行了Cu(I)-沸石吸附剂清除制氨原料气中微量CO的研究。这种吸附剂对CO有良好的选择性,可使吸附器出口气体中残余CO含量降至5mg/L以下。CO的吸附量取决于吸附剂中的亚铜含量,吸附动力学数据可用Lee氏双孔扩散模型很好地拟合,研究了压力、温度、气速等参数对动态吸附的影响;并进行了长期的吸附循环试验以考察吸附剂的稳定性。更多还原

【Abstract】 Removel of small amounts of CO from ammonia synthesis gas by adsorption with Cu(I)-zeolite adsorbent was studied. Such adsorbant was effective to CO adsorption and had high selectivity. The residual amount of CO in the effluent gas from adsorber was below 5 mg/L after the adsorption. The capacity of adsorbent depended on its cuprous ion content. The kinetic adsorption data might be simulated with Lee’ s biporous diffusion model. The effect of parameters such as temperature, pressure and gas velocity on dynamic adsorption was studied. The stability of this type of adsorbent was examined by long-time cyclic adsorption-desorption processes.更多还原