The bi-functional catalysts comprising non-noble metals such as Ni-W supported on zeolites were prepared to study hydrocracking of hydrotreated Light Cycle Oil (LCO) conversion into mono-aromatics. The three Ni-W supported zeolite catalysts with mixture of Y and Beta (Catalyst-A), Y (Catalyst-B), and Beta zeolites (Catalyst-C) were prepared by wetness impregnation method and characterized by using different techniques to understand the physico-chemical properties. The characterization results indicated that Ni-W supported on Beta zeolite catalyst has higher overall acidity and strong interaction between the H₂W₁₂O₄₀ and Ni²⁺ ions than Ni-W supported on mixture of Y & Beta, and Y zeolites. Furthermore, Beta zeolite catalyst exhibited tetrahedral tungstate species, which are due to strong interaction between support and metal ions. Among these catalysts, Ni-W supported on Beta zeolite catalyst showed high conversion for mono-aromatic 2 ring, and di-aromatics and selectivity towards mono-aromatics (43.5%). The high conversion of this catalyst could be due to higher total acidity and the presence of tetragonal tungsten species. High selectivity of mono-aromatics may be due to larger average pore diameter of the Beta zeolite.

制备了包含非贵金属（例如负载在沸石上的Ni-W）的双功能催化剂，以研究加氢处理的轻循环油（LCO）转化为单芳烃的加氢裂化。通过湿法浸渍法制备了三种Y-B负载的Y-B，C和B的Ni-W负载型沸石催化剂，并采用不同的技术对其进行了表征，以了解理化特性。表征结果表明，负载在β沸石催化剂上的Ni-W具有较高的整体酸度，且H ₂ W ₁₂ O ₄₀与Ni ²⁺之间具有较强的相互作用。Y和Beta以及Y沸石的混合物中负载的离子比Ni-W高。此外，由于载体和金属离子之间的强相互作用，β沸石催化剂显示出四面体钨酸盐物种。在这些催化剂中，负载在Beta沸石催化剂上的Ni-W对单芳族2环和二芳族化合物的转化率高，对单芳族化合物的选择性高（43.5％）。该催化剂的高转化率可能归因于较高的总酸度和四方钨物种的存在。单芳族化合物的高选择性可能是由于β沸石的平均孔径更大。