Petrochina Company Limited

Cheng Tang

Ruifeng Li

Famin Sun

Wencheng Zhang

Chunmei Yu

Jintao Guo

Guojia Zhang

Quanguo Zhang

Sheng Hu

Tan Zhao

Wenyong Liu

Shanbin Gao

Rui Li

Bin Xie

Xiaodong Yang

Xinmiao Wang

Yanfeng Liu

Lili Jiang

Hongling Chu

Xianjun Wu

Zhihua Zhang

Shengbo Sun

Xiaofeng Wang

Yuanyuan Ji

Ran Sun

Yuxiao Feng

Jinxian Jiang

Yuhe Yang

Dongqing Wang

Jingying Zhao

Hong Li

The present invention relates to a method for preparing a sulfur-resistant catalyst for aromatics saturated hydrogenation, comprising the steps of: preparing noble metal impregnation solutions from a noble metal and deionized water or an acid solution; impregnating a carrier with the impregnation solutions sequentially from high to low concentrations by incipient impregnation; homogenizing, drying, and calcinating to obtain the sulfur-resistant catalyst for aromatics saturated hydrogenation. The catalyst for aromatics saturated hydrogenation prepared by the method according to the present invention is primarily used in processing low-sulfur and high-aromatics light distillate, middle distillate, atmospheric gas oil, and vacuum gas oil. The method according to the present invention is advantageous in that the catalyst for aromatics saturated hydrogenation exhibits good hydrofining performance, superior aromatics saturation performance, high liquid yield of products, as well as excellent desulfurization and sulfur-resistance, and the catalyst has remarkable effects in use and a great prospect of application.

Sulfur-resistant catalyst for aromatics saturated hydrogenation and preparation method thereof

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

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Daqing, China

Cheng Tang