Nobel metallic Pt/ZSM-22 and Pt/ZSM-23 catalysts were prepared for hydroisomerization of normal dodecane and hydrodewaxing of heavy waxy lube base oil. The hydroisomerization performance of n-dodecane indicated that the Pt/ZSM-23 catalyst preferred to crack the C–C bond near the middle of n-dodecane chain, while the Pt/ZSM-22 catalyst was favorable for breaking the carbon chain near the end of n-dodecane. As a result, more than 2% of light products (gas plus naphtha) and 3% more of heavy lube base oil with low-pour point and high viscosity index were produced on Pt/ZSM-22 than those on Pt/ZSM-23 while using the heavy waxy vacuum distillate oil as feedstock.

制备了诺贝尔金属Pt / ZSM-22和Pt / ZSM-23催化剂，用于正十二烷的加氢异构化和重蜡质润滑油基础油的加氢脱蜡。正十二烷的加氢异构化性能表明，Pt / ZSM-23催化剂更喜欢使正十二烷链中部附近的C–C键断裂，而Pt / ZSM-22催化剂则有利于破坏碳纳米管附近的碳链。正十二烷的末端。结果，与Pt / ZSM-23相比，在Pt / ZSM-22上生产了2％以上的轻质产品（天然气加石脑油）和3％以上的具有低倾点和高粘度指数的重油基础油。同时使用重蜡质真空蒸馏油作为原料。