Copper based catalyst used for hydrogenating carbon dioxide to synthesize methanol, and preparation method and application thereof

A copper-based catalyst, carbon dioxide technology, used in the preparation of metal/metal oxide/metal hydroxide catalysts, organic compounds, catalyst activation/preparation, etc., can solve problems such as poor methanol selectivity and achieve mutual synergy The effect of strong, long operating life and simple preparation method

Active Publication Date: 2015-04-01
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
View PDF2 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the methanol selectivity of this catalyst is not good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper based catalyst used for hydrogenating carbon dioxide to synthesize methanol, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Synthesize the copper-based catalyst according to the mole percentage of the following metal elements: Cu:Zn:Al:Zr=30:40:20:10. Weigh 72.48g of copper nitrate, 119g of zinc nitrate, 75.03g of aluminum nitrate and 23.12g of zirconyl nitrate according to the molar percentage of 30:40:20:10.

[0035] Firstly, zinc nitrate, aluminum nitrate and zirconyl nitrate were dissolved in 1L of deionized water successively to prepare mixed solution 1.

[0036] (2) Weigh 105.99g of sodium carbonate and 40g of sodium hydroxide at a molar ratio of 1:1, mix and dissolve them in deionized water to prepare an alkaline precipitation solution 2 with a molar concentration of 1mol / L.

[0037] Under the conditions of a reaction temperature of 25°C and mechanical stirring, the above 1L solution 1 and 1.8L solution 2 were co-precipitated by co-precipitation method, and the pH of the precipitation was controlled at pH=8 to form a co-precipitation solution.

[0038] (3) Dissolve the copper nit...

Embodiment 2

[0040] (1) Synthesize the copper-based catalyst according to the mole percentage of the following metal elements: Cu:Zn:Al:Zr=35:40:15:10. Weigh 62.17g of copper sulfate, 119g of zinc nitrate, 20g of aluminum chloride, 23.12g of zirconyl nitrate and 10g of polyvinylpyrrolidone according to the molar percentage of 35:40:15:10:1.

[0041] First, zinc nitrate, aluminum chloride, zirconyl nitrate and polyvinylpyrrolidone were dissolved in 1L of deionized water in sequence to prepare mixed solution 1.

[0042](2) Weigh 138.21g of potassium carbonate and 40g of sodium hydroxide at a molar ratio of 1:1, dissolve them in deionized water, and prepare an alkaline precipitation solution 2 with a molar concentration of 1mol / L.

[0043] Under the conditions of a reaction temperature of 25°C and mechanical stirring, the co-precipitation method was used to co-precipitate the above 1L solution 1 and 1.7L solution 2, and control the pH of the precipitate to pH=9 to form a co-precipitation solu...

Embodiment 3

[0046] (1) Synthesize the copper-based catalyst according to the mole percentage of the following metal elements: Cu:Zn:Al:Zr=40:40:10:10. First weigh 96.64g of copper nitrate, 54.52g of zinc chloride, 37.51g of aluminum nitrate, 32.23g of zirconium oxychloride and 20g of polyvinylpyrrolidone according to the molar percentage of 40:40:10:10:2.

[0047] First, zinc chloride, aluminum nitrate, zirconium oxychloride and polyvinylpyrrolidone were dissolved in 1L of deionized water in sequence to prepare mixed solution 1.

[0048] (2) Weigh 121.89g of sodium carbonate and 64.53g of potassium hydroxide at a molar ratio of 1:1, dissolve them in deionized water, and prepare an alkaline precipitation solution 2 with a molar concentration of 1mol / L.

[0049] Under the conditions of a reaction temperature of 25°C and mechanical stirring, the co-precipitation method was used to co-precipitate the above 1L solution 1 and 1.65L solution 2, and control the pH of the precipitate to pH=10 to f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a copper based catalyst used for hydrogenating carbon dioxide to synthesize methanol, and a preparation method and an application thereof. The preparation method of the catalyst comprises the following steps: 1, processing a zinc salt, an aluminum salt, a zirconium salt and a stabilizer to prepare a first solution, or processing the zinc salt, the aluminum salt and the zirconium salt to prepare a second solution; 2, processing carbonate and hydroxide to prepare a third solution; 3, processing a copper salt to prepare a fourth solution; 4, processing the first solution and the third solution to form a first precipitation solution, or processing the second solution and the third solution to form a second precipitation solution; 5, adding the fourth solution to the first precipitation solution to form a third precipitation solution or adding the fourth solution to the second precipitation solution to form a fourth precipitation solution, ageing after Cu in the precipitation solution precipitates, and washing; and 6, drying, and calcining. The catalyst contains 30-50% of Cu, 20-40% of Zn, 10-20% of Al, and 5-20% of Zr. The catalyst is used for a reaction for hydrogenating carbon dioxide to synthesize methanol.

Description

technical field [0001] The invention relates to a copper-based catalyst, in particular to a copper-based catalyst for hydrogenation of carbon dioxide to synthesize methanol, its preparation method and application. Background technique [0002] Methanol is a widely used chemical basic raw material and environmentally friendly power fuel, widely used in organic synthesis, fuel, medicine and national defense industry and other fields. by CO 2 Hydrogenation of methanol can not only reduce the greenhouse gas CO 2 emissions, improve the living environment of human beings, and also solve the demand for methanol in the chemical and energy fields, and realize the combustion of carbon-containing energy→CO 2 →Methanol→Carbon-containing energy combustion is an effective cycle of carbon resources. Currently, research CO 2 The focus of methanol hydrogenation is to improve catalyst activity and methanol selectivity, and the key to solving this problem is the development of high-perform...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80C07C31/04C07C29/154B01J37/03
CPCY02P20/52
Inventor 孙予罕魏伟解荣永夏林王慧
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap