effects of zsm-5 preparation conditions on textural properties and catalytic cracking of n-hexane

In this study, the effects of crystallization temperature, crystallization time, and ph value on the textural properties of synthetic zsm-5 were investigated by the orthogonal test method. furthermore, the effects of zsm-5 catalysts synthesized under different preparation conditions on their reactivity during catalytic cracking were evaluated. moreover, the results have shown that the three factors that affect the zsm- 5 synthesis are in the following order: crystallization temperature > crystallization time > ph value. in addition, the optimal conditions for synthesizing zsm-5 catalysts were crystallization temperature of 170 °c, crystallization time of 48 h, and ph of 11. furthermore, under these conditions, the specific surface area, pore-volume, and acidity of the synthetic zeolite were moderate, and the hydrothermal stability was ideal. finally, when the optimal conditions were applied to the catalytic cleavage of n-hexane, the synthesized zeolite exhibited good activity and stability.