The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2019
Filed:
Dec. 09, 2015
Petrochina Company Limited, Beijing, CN;
Xiaodong Yang, Daqing, CN;
Chunmei Yu, Daqing, CN;
Yanfeng Liu, Daqing, CN;
Sheng Hu, Daqing, CN;
Zhihua Zhang, Daqing, CN;
Famin Sun, Daqing, CN;
Wencheng Zhang, Daqing, CN;
Jintao Guo, Daqing, CN;
Wenyong Liu, Daqing, CN;
Xinmiao Wang, Daqing, CN;
Shanbin Gao, Daqing, CN;
Bin Xie, Daqing, CN;
Jinxian Jiang, Daqing, CN;
Yuhe Yang, Daqing, CN;
Rui Li, Daqing, CN;
Guojia Zhang, Daqing, CN;
Lili Jiang, Daqing, CN;
Tan Zhao, Daqing, CN;
Dongqing Wang, Daqing, CN;
Jingying Zhao, Daqing, CN;
Quanguo Zhang, Daqing, CN;
Ruifeng Li, Daqing, CN;
Shengbo Sun, Daqing, CN;
Hong Li, Daqing, CN;
Cheng Tang, Daqing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
Abstract
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.