Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of copper based hydrogenation catalyst

A hydrogenation catalyst and catalyst technology, applied in the preparation of organic compounds, chemical instruments and methods, preparation of hydroxyl compounds, etc., can solve the problems of the inability to examine the influence of catalyst performance, the specific surface area of ​​the catalyst, and the adverse effects of the mechanical strength of the pore structure. Achieve the effect of being conducive to chemical adsorption and activation, short introduction process time, and high CO2 conversion rate

Inactive Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical impregnation method is limited by the inherent water absorption rate of the catalyst and the solubility of the additives, and it is impossible to investigate the influence of a wide range of additives on the performance of the catalyst in a single impregnation; Prolonged exposure to solvents will adversely affect the specific surface area, pore structure and mechanical strength of the catalyst

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 96.64g Cu(NO 3 ) 2 ·3H 2 O, 297.5g Zn(NO 3 ) 2 ·6H 2 O and 225.08g Al(NO 3 ) 3 9H 2 O was dissolved in 3L deionized water, at room temperature, with 1mol / L Na 2 CO 3 The aqueous solution was added dropwise and continuously stirred vigorously. When the pH value was between 7 and 9, the dropwise addition was stopped, and then the obtained precipitate was washed to remove Na + After that, the precipitate was dried overnight at 90°C, calcined at 250°C for 6h, shaped and crushed to obtain 20-40 mesh catalyst main particles C1; weigh 0.256g Mg(NO 3 ) 2 ·6H 2 Dissolve O in 100mL deionized water to make a 0.010mol / L solution, measure 4mL of C1 particles and put them into 10mL of the above solution, add 0.1mol / mL ammonia water dropwise to the solution at 30°C with stirring until the pH is between After 8~9, the catalyst was dried in an oven at 90°C for 3h, and then calcined in a muffle furnace at 200°C for 3h, and finally the catalyst was labeled as Mg-C1...

Embodiment 2

[0022] Weigh 193.28g Cu(NO 3 ) 2 ·3H 2 O, 119.00g Zn(NO 3 ) 2 ·6H 2 O and 300.11g Al(NO 3 ) 3 9H 2 O was dissolved in 3L deionized water at 40°C with 1mol / L NaHCO 3 The aqueous solution was added dropwise and continuously stirred vigorously. When the pH value was between 7 and 9, the dropwise addition was stopped, and then the obtained precipitate was washed to remove Na + After that, the precipitate was dried overnight at 90°C, calcined at 300°C for 4h, shaped and crushed to obtain 20-40 mesh catalyst main particles C2; weigh 0.262g Ba(NO 3 ) 2 Dissolve in 200mL deionized water to make a 0.005mol / L solution, measure 4mL of C2 particles and put it into 10mL of the above solution, add 0.5mol / mL ammonia water dropwise to the solution at 40°C with stirring until the pH is between 8 After ~9, the catalyst was dried in an oven at 90°C for 3h, and then calcined in a muffle furnace at 250°C for 3h, and finally the catalyst was labeled as Ba-C2.

[0023]The catalytic perfor...

Embodiment 3

[0025] Weigh 0.214g Zr(NO 3 ) 4 ·5H 2 O was dissolved in 500mL deionized water to make a 0.001mol / L solution, and 4mL of C1 particles were weighed and put into 10mL of the above solution, and 0.1mol / mL Na 2 CO 3 After the aqueous solution was added dropwise to the solution until the pH was between 8 and 9, the catalyst was washed with deionized water to remove Na + , the catalyst was dried in an oven at 90°C for 3h, and then calcined in a muffle furnace at 200°C for 3h to obtain a catalyst marked as Mg-C1.

[0026] The catalytic performance was compared with the 20-40 mesh C1 catalyst under the following conditions. Except that the final reduction temperature was 260°C and the catalyst evaluation temperature was 260°C, other performance comparison conditions were the same as in Example 1. The results are shown in Table 1.

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 relates to a preparation method of a copper based hydrogenation catalyst, and belongs to the technical field of catalyst preparation. The catalyst is prepared by adopting a staged precipitation method and is divided into two parts of a main body part and a surface auxiliary agent, the catalyst main body is composed of oxides of Cu, Zn and Al and is prepared by a co-precipitation method; the surface auxiliary agent includes one or more of Mg, Ba, Zr, Mn, Ga, Ce, La and Ti and is introduced to the surface of the catalyst main body by the chemical method. The prepared catalyst has the characteristics of high auxiliary agent utilization rate, high mechanical strength, and large number of strong alkaline sites in the surface, is used as a catalyst for a reaction for CO2 hydrogenation synthesis of methanol, and has high CO2 conversion rate and methanol selectivity.

Description

Technical field [0001] The present invention involves a method of preparing a copper hydrogenation catalyst, which is especially suitable for CO 2 Hydrogenation synthesis methanol reactions are the field of catalyst preparation technology. Background technique [0002] With the rapid development of modern industries and the continuous improvement of global automotive ownership, the increasing attention of environmental pollution and extreme climate phenomena brought about has attracted great attention from countries around the world.On November 26, 2012, the 18th Convention of the Convention on the Framework of the United Nations (COP18) was held in the capital of Qatar, a representative of the 194 parties to participate in the conference to discuss the overall action of saving the earth and curbing global warming.The plan, among them, global carbon emissions are still the core of discussion.In this background of this global, CO 2 The use of resources and recycling is particularl...

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
IPC IPC(8): B01J23/80B01J23/889B01J23/825B01J23/83C07C31/04C07C29/154
CPCY02P20/52
Inventor 于杨郝爱香陈海波贺健毛春鹏曹建平谢天明魏士新殷玉圣
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com