Petrochina Company Limited

Zhihua Zhang

Famin Sun

Chunmei Yu

Shengbo Sun

Gang Wang

Ruifeng Li

Wencheng Zhang

Quanguo Zhang

Guojia Zhang

Jintao Guo

Lili Jiang

Sheng Hu

Wenyong Liu

Yanfeng Liu

Rui Li

Cheng Tang

Xinmiao Wang

Tan Zhao

Shoutao Ma

Shanbin Gao

Bin Xie

Fengxuan Li

Xiaodong Yang

Jinxian Jiang

Yuhe Yang

Dongqing Wang

Jingying Zhao

Hong Li

Ran Tian

Ruiqin Zhang

Xiufang Feng

Jinling Zhu

Disclosed are a method for preparing a noble metal hydrogenation catalyst comprising preparing a carrier from a molecular sieve having a 10-member ring structure and/or an amorphous porous material; preparing a noble metal impregnation solution; and preparing noble metal impregnation solutions in a concentration gradient ranging from 0.05 to 5.0 wt % with deionized water, and sequentially impregnating the carrier with the impregnation solutions from low to high concentrations during the carrier impregnation process, or preparing a noble metal impregnation solution at a low concentration ranging from 0.05 to 0.5 wt % and impregnating the carrier by gradually increasing the concentration of the noble metal impregnation solution to 2.0 to 5.0 wt % in the impregnation process, followed by homogenization, drying, and calcination, as well as a noble metal hydrogenation catalyst, use thereof, and a method for preparing lubricant base oil.

Method for preparing noble metal hydrogenation catalyst, noble metal hydrogenation catalyst and use thereof

A hydrogenation method and distillate two-phase hydrogenation reactor in which the size of an upper space of the reactor is greater than that of a lower catalyst bed part. The reactor comprises 2 to 4 catalyst beds. An inner component for gas replenishment and for stripping a liquid-phase stream containing impurities is arranged between at least one adjacent catalyst bed and comprises a separator plate and exhaust pipes. The separator plate is provided with multiple downcomer through holes. The separator plate is connected with a plurality of exhaust pipes. The exhaust pipes are vertically arranged above the separator plate. The top parts of the exhaust pipes are in contact with the lower part of the upper catalyst bed.

Distillate two-phase hydrogenation reactor and hydrogenation method

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Daqing, China

Zhihua Zhang