Cu(Ⅰ)—NaY分子筛的制备及乙烯、乙烷在该分子筛上吸附平衡的研究

Preparation of Cu (I) - NaY Zeolite and Adsorption Equilibrium of Ethane, Ethylene on the Zeolite

用离子交换方法制备了铜交换的分子筛,研究了将二价铜还原为一价铜的方法。测量了在不同温度下乙烯和乙烷在NaY及Cu(Ⅰ)—NaY分子筛上的吸附等温线,研究了在化学吸附和物理吸附同时存在时的吸附平衡并提出了相应的模型,该模型能满意地关联乙烯在Cu(Ⅰ)—NaY分子筛上的吸附等温线。

Cupric ion exchanged NaY zeolite was prepared. The method to reduce cupric into cuprous exchanged zeolite was studied. The adsorption isotherms of ethane and ethylene on NaY and Cu (I)-NaY zeolite were measured at various temperatures. A hecterogeneous adsorption model was proposed to simulate the isotherms with simultaneous physical and chemical adsorption. The model correlation is in good agreement with experimental adsorption isotherms of ethylene on Cu (I) - NaY zeolite.