Mazzite沸石的重油裂化性能研究

报道了Mazzite沸石催化剂对大庆重油的催化裂化性能,并以HY沸石催化剂为对比进行了研究.通过对H-MAZ沸石催化剂和H-Y沸石催化剂对大庆重油的裂化性能的研究,发现H-MAZ沸石催化剂在改善裂化产品分布,提高柴汽比方面有潜在应用价值.

Mazzite沸石在催化汽油降烯烃和芳构化中的应用研究

研究了改性的Mazzite型沸石应用于催化汽油非临氢降烯烃和芳构化催化剂.实验表明,经Mazzite沸石催化剂处理后,催化汽油的烯烃含量都明显降低.

Cooperative Structure-Directing Effects in the Synthesis of a High-Silica Zeolite Mazzite Analogue

A zeolite Mazzite (MAZ) analogue with high silica content has been synthesized from a Na2O-Al2O3-SiO2-morpholine-H2O system. The crystal morphology of this MAZ analogue was found to consist of spherical agglomerates of diameter up to 17 μm. It has been unequivocally demonstrated that zeolite Mordenite (MOR) or amorphous material was produced instead in the absence of either morpholine or Na+. Associated phases indicate that the MAZ may be a “intermediate phase” between the crystallization fields of zeolites Analcime (ANA) and MOR. Thus, the zeolite MAZ analogue is seemingly derived from the cooperative structure-directing effect of the organic molecule morpholine and the inorganic cation Na+. The results of CHN elemental analyses as well as of thermogravimetric (TG) analyses confirmed that morpholine had been incorporated into the zeolitic structure.