The aim of this study is to investigate the promotional effect of Fe–Mo, Co–Mo, and Ni–Mo bimetallic additives on the activity and stability of H-ZSM-5 zeolite for isomerization of 1-hexene. The catalysts were synthesized by wet-impregnation method and characterized by XRD, FTIR, BET, ICP-AES, HRSEM-EDS, HRTEM, H₂-TPR, NH₃-TPD, and pyridine-DRIFT analysis. The isomerization of 1-hexene was carried out in a micro-scale system under the conditions: T = 250 °C, P = 4.0 MPa, FR = 0.1 ml/min, WHSV = 1 h⁻¹. The conversion of 1-hexene over the 4 g bed of catalyst was in the range of 95–97% after 74 h time-on-stream with cis-3-hexene and cis-2-hexene as the principal products. It was shown that the appearance of the new strong Lewis acid sites, decreases the ratio of Brönsted/Lewis acid sites. Increase of the weak Lewis acid sites in the 2.5 wt%Ni2.5 wt%Mo-ZSM-5 catalyst facilitated the isomerization of 1-hexene and showed higher C6 olefin selectivity (48.4 mol%), research octane number (99.7), and bromine number (148.3) than other studied catalysts.

这项研究的目的是调查Fe-Mo，Co-Mo和Ni-Mo双金属添加剂对H-ZSM-5沸石用于1-己烯异构化的活性和稳定性的促进作用。通过湿浸渍法合成催化剂，并通过XRD，FTIR，BET，ICP-AES，HRSEM-EDS，HRTEM，H ₂ -TPR，NH ₃ -TPD和吡啶-DRIFT进行表征。1-己烯的异构化是在以下条件下在微型系统中进行的：T = 250°C，P = 4.0 MPa，FR = 0.1 ml / min，WHSV = 1 h ^-1。以顺式-3-己烯和顺式-2-己烯为主要产物，在运行74小时后，在4 g催化剂床上1-己烯的转化率在95-97％的范围内。结果表明，新的强路易斯酸位点的出现降低了布朗斯台德/路易斯酸位点的比例。2.5 wt％Ni2.5 wt％Mo-ZSM-5催化剂中弱路易斯酸位点的增加促进了1-己烯的异构化并显示出更高的C6烯烃选择性（48.4 mol％），研究辛烷值（99.7）和溴值（148.3）比其他研究的催化剂高。