Hydrocracking diversity in n-dodecane isomerization on Pt/ZSM-22 and Pt/ZSM-23 catalysts and their catalytic performance for hydrodewaxing of lube base oil  

作　　者：Shan-Bin Gao Zhen Zhao Xue-Feng Lu Ke-Bin Chi Ai-Jun Duan Yan-Feng Liu Xiang-Bin Meng Ming-Wei Tan Hong-Yue Yu Yu-Ge Shen Meng-Chen Li 

机构地区：[1]State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China [2]Petrochemical Research Institute,PetroChina Company Limited,Beijing 100195,China

出　　处：《Petroleum Science》2020年第6期1752-1763,共12页石油科学（英文版）

基　　金：financial supports by National Key R&D Program of China(Grant No.2017YFB0306702)are gratefully acknowledged。

摘　　要：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)and3%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.

关 键 词：ISOMERIZATION HYDROCRACKING CATALYSTS Pt/ZSM-22 Pt/ZSM-23 DODECANE Lube base oil 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]