Method for preparing copper-zinc-based catalyst used in synthesis of methanol through CO2 hydrogenation

US10010875B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• RESEARCH INSTITUTE OF NANJING CHEMICAL INDUSTRY GROUP · CN

Inventors

• Yang Yu · Taipei, TW
• Aixiang Hao · Nanjing, CN
• Haibo Chen · Shanghai, CN
• Shixin Wei · Lo Wu, CN
• Yusheng Yin · 安丰镇, CN
• Tianming Xie · Huajiang, CN
• Jian He · Blue Bell, US
• Chunpeng Mao · 安丰镇, CN
• Jiedong Tan · Nanjing, CN

Key dates

• Filing date: Oct 30, 2015
• Grant date: Jul 3, 2018
• Expiry date: Feb 2, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed is a method for preparing a copper-zinc-based catalyst used in synthesis of methanol through CO2 hydrogenation, and ultrasonic waves are used for control over crystalline phase's composition of a catalyst precursor. Further related to is a catalyst prepared by such a method. An amount of aurichalcite in an active catalyst precursor can be improved through the method, and the specific surface area of the metal copper in a reduced state catalyst is high. The catalyst presents high activity and hydrothermal stability, and promotes high space time yield of methanol in the synthesis of methanol through CO2 hydrogenation.