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Ｙ沸石用ＬｉＣｌ溶液交换得ＬｉＮａＹ沸石，再经ＳｉＣｌ４气相同晶取代进行脱铝补硅,获得高结晶度的高硅Ｙ沸石,硅铝比可大于１００［１］．在脱铝过程中，随着硅铝比的升高其孔结构和表面性质均发生变化,直接关联到Ｙ沸石在炼油中的催化裂化性能．通过对不同大小、结?..
Y zeolite exchanged with LiCl LiNaY zeolite zeolite, SiCl4 by gas-phase replacement of the same dealuminated silica to obtain high-crystallinity of high-silicon Y zeolite, silica to alumina ratio greater than 100 [1]. In the dealumination process, the pore structure and surface properties of the modified aluminosilicate are changed with the increase of the Si / Al ratio, which is directly related to the catalytic cracking performance of Y zeolite in refinery. By different sizes, knot?