引言根据有效孔径的不同,丝光沸石有大孔(～10A°)、中孔(～7A°)和小孔(～4A°)之分,X射线衍射表明它们具有相同的晶体结构,其主要孔道由硅铝四面体的12元环构成。大孔丝光沸石呈现出12元环结构的吸附和催化性能,活化后的大孔Na型丝光沸石吸苯7.8(W％),而小孔只有0.6(W％);大孔H型丝光沸石上正己烷转化率70(W％),而小孔 Introduction Depending on the effective pore size, mordenite has large pores (~ 10A °), mesopores (~ 7A °) and small pores (~ 4A °). X-ray diffraction shows that they have the same crystal structure and that their major pore channels Consists of a 12-membered ring of Si-Al tetrahedrons. The macroporous mordenite exhibits the adsorption and catalytic properties of a 12-membered ring structure. The activated macroporous Na mordenite adsorbs 7.8% (W%) of benzene and only 0.6% of the pores (W%). On the macroporous H-type mordenite N-hexane conversion rate of 70 (W%), while small holes