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:
Oct. 13, 2020
Filed:
Jun. 15, 2018
Petrochina Company Limited, Beijing, CN;
Chunxia Che, Beijing, CN;
Yulong Liang, Beijing, CN;
Ying Qian, Beijing, CN;
Wei Han, Beijing, CN;
Feng Zhang, Beijing, CN;
Galian Gou, Beijing, CN;
Xilin Jing, Beijing, CN;
Xiaoxin Chang, Beijing, CN;
Qiang Gui, Beijing, CN;
Lifen Gu, Beijing, CN;
Wei Xie, Beijing, CN;
Zhongdong Zhang, Beijing, CN;
Dehua Huang, Beijing, CN;
Duping Tan, Beijing, CN;
Yuan Gao, Beijing, CN;
Lin Cheng, Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
The present invention relates to a palladium-based supported hydrogenation catalyst and a preparation method and application thereof. The catalyst is prepared by the following method: impregnating an AlO-containing carrier with an organic solution containing a bipyridine derivative having hydroxy group, optionally drying followed by impregnating with a mixed solution containing the main active component palladium ions and the auxiliary active component Mions, where M is one selected from Ag, Au, Ni, Pb and Cu; and then optionally drying, and calcining to obtain the catalyst. The preparation method provided by the present invention allows Pd atoms and M atoms to be highly uniformly dispersed on the carrier, which overcomes the adverse impact of the surface tension of the impregnation solution and the solvation effect on the dispersibility of active components. The palladium-based supported hydrogenation catalyst provided by the present invention has excellent hydrogenation activity, ethylene selectivity and anti-coking performance, and can be used in a selective hydrogenation process of C2 fraction.