Petrochina Company Limited

Famin Sun

Ruifeng Li

Chunmei Yu

Wencheng Zhang

Guojia Zhang

Jintao Guo

Xianjun Wu

Quanguo Zhang

Lili Jiang

Wenyong Liu

Cheng Tang

Tan Zhao

Zhihua Zhang

Shengbo Sun

Rui Li

Shoutao Ma

Xiaodong Yang

Yanfeng Liu

Sheng Hu

Xinmiao Wang

Shanbin Gao

Fengxuan Li

Bin Xie

Gang Wang

Rui Wang

Hongling Chu

Tiegang Xu

Chunming Dong

Endong Xia

Xiaofeng Wang

Yuanyuan Ji

Ronglei Ji

Ran Sun

Liying Liu

Yuxiao Feng

Lihong Qin

Xiangbin Meng

Xuefeng Lu

Jinxian Jiang

Xiaoqiao Huang

Yuhe Yang

Shurong Ni

Dongqing Wang

Qingfeng Ma

Jingying Zhao

Hong Li

Ran Tian

Fangming Xie

Ruiqin Zhang

Xiufang Feng

Yongsheng Duan

Jinling Zhu

Dongmei Ge

Provided are a liquid-phase hydroisomerization system and a process therefor and use thereof. The system comprises a gas-liquid mixer (), a hydroisomerization reactor () and a fractionating column (). An oil product and hydrogen are mixed as a liquid hydrogen-oil mixture, and are introduced into the hydroisomerization reactor for a hydroisomerization reaction, and after being fractionated, a target product is led out. A supplemental hydrogen-dissolving inner member is provided at least between a group of two adjacent catalyst bed layers in order to supplement hydrogen to the reactants. The process cancels a circulating hydrogen compressor, has a simple process flow, and can be applied to the production of a lubricant base oil by the hydroisomerization of a lubricant raw material or the production of a low freezing point diesel by the hydroisomerization of and the reduction in the freezing point of a diesel raw material.

Liquid-phase hydroisomerization system and process therefor and use thereof

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

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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Beijing, China

Famin Sun