Abstract

The paper reports the synthesis of embryonic and highly crystalline ZSM-5 zeolites with SiO₂/Al₂O₃ ratios of 50 to 400, as well as the examination and comparative evaluation of their physicochemical properties by XRD, low-temperature nitrogen adsorption/desorption, ammonia TPD, and TEM methods. The Ni-W sulfide catalysts prepared in situ from the embryonic and highly crystalline ZSM-5 were investigated in a hydrocracking reaction of 1-methylnaphthalene (50 atm H₂, 380°C, 5 h). The catalytic systems based on embryonic ZSM-5 were found to promote, to a larger extent, the hydrogenation and migration of the methyl group on the naphthalene ring.

中文翻译：

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胚胎高结晶ZSM-5分子筛原位制备的Ni-W硫化物催化剂在1-甲基萘加氢裂化反应中的应用

摘要

本文报道了SiO ₂ / Al ₂ O ₃比为50至400的胚态和高度结晶的ZSM-5沸石的合成，以及通过XRD，低温氮吸附/脱附对其理化性质的检查和比较评估。 ，氨气TPD和TEM方法。制备的镍-钨硫化物催化剂在原位从胚胎和高结晶的ZSM-5在1-甲基萘（50个大气压H的加氢裂化反应进行了研究₂，380℃，5小时）。发现基于胚ZSM-5的催化体系在更大程度上促进了萘环上甲基的氢化和迁移。