Petrochina Company Limited

Fengxuan Li

Famin Sun

Shoutao Ma

Gang Wang

Rui Wang

Ruifeng Li

Xianjun Wu

Chunmei Yu

Shengbo Sun

Chunming Dong

Zhihua Zhang

Tiegang Xu

Xiaoqiao Huang

Liying Liu

Lihong Qin

Xiangbin Meng

Xuefeng Lu

Qingfeng Ma

Shurong Ni

Fangming Xie

Yongsheng Duan

Ran Tian

Ruiqin Zhang

Xiufang Feng

Dongmei Ge

Jinling Zhu

Endong Xia

Ronglei Ji

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

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

Fengxuan Li