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

Methanol synthesis catalyst

A methanol synthesis and catalyst technology, which is applied in catalyst activation/preparation, physical/chemical process catalyst, organic chemistry, etc., can solve problems such as short service life and poor thermal stability, and achieve the effect of improving economic benefits and reducing reaction procedures.

Active Publication Date: 2019-05-17
NINGXIA UNIVERSITY
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of poor thermal stability and short service life of existing copper-based methanol synthesis catalysts, and to provide a copper-based methanol synthesis catalyst with good heat resistance, long life and high catalytic activity. 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Methanol synthesis catalyst
  • Methanol synthesis catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 2.9 g (NH 4 ) 6 Mo 7 o 24 ∙4H 2 O was ground for 10 min, dissolved in 150 mL ethanol, stirred for 24 h; 1.5 g Cu(NO 3 ) 2 ∙3H 2 O stirred for 1 h; slowly dropwise added 5.8 g C 3 h 9 OSi∙(CH 4 OSi) n ∙C 3 h 9 Si and 2 drops of ethylenediamine were stirred for 12 h; dried at 80 °C for 6 h; dried at 150 °C for 10 h; treated in a nitrogen atmosphere at 700 °C for 3 h to obtain the catalyst. The mass content of Cu is 5%, Mo 2 The mass content of C is 21%, SiO 2 The mass content is 74%. The sample has a pore size of 3.9 nm and a pore volume of 120mm 3 / g, the surface area is 117.3 m 2 / g. Methanol synthesis activity evaluation: feed gas composition CO 31.2%, CO 2 5.0%, H 2 61.8%. The reaction temperature was 150 °C, and the reaction pressure was 4 MPa. The results are shown in Table 1.

Embodiment 2

[0024] Weigh 2.9 g (NH 4 ) 6 Mo 7 o 24 ∙4H 2 O was ground for 10 min, dissolved in 150 mL ethanol, stirred for 24 h; 3.1 g Cu(NO 3 ) 2 ∙3H 2 O stirred for 1 h; slowly dropwise added 5.8 g C 3 h 9 OSi∙(CH 4 OSi) n ∙C 3 h 9 Si and 2 drops of ethylenediamine were stirred for 12 h; dried at 80 °C for 6 h; dried at 150 °C for 10 h; treated in a nitrogen atmosphere at 700 °C for 3 h to obtain the catalyst. Wherein the mass content of Cu is 10%, Mo 2 The mass content of C is 20%, SiO 2 The mass content is 70%. The sample has a pore size of 4.1 nm and a pore volume of 150 mm 3 / g, the surface area is 151.4 m 2 / g. The methanol synthesis activity was evaluated with reference to Example 1, and the results are shown in Table 1.

Embodiment 3

[0026] Weigh 2.9 g (NH 4 ) 6 Mo 7 o 24 ∙4H 2 O was ground for 10 min, dissolved in 150 mL ethanol, stirred for 24 h; 4.9 g Cu(NO 3 ) 2 ∙3H 2 O stirred for 1 h; slowly dropwise added 5.8 g C 3 h 9 OSi∙(CH 4 OSi) n ∙C 3 h 9 Si and 2 drops of ethylenediamine were stirred for 12 h; dried at 80 °C for 6 h; dried at 150 °C for 10 h; treated in a nitrogen atmosphere at 700 °C for 3 h to obtain the catalyst. Wherein the mass content of Cu is 15%, Mo 2 The mass content of C is 19%, SiO 2 The mass content is 66%. The sample has a pore size of 4.3 nm and a pore volume of 170 mm 3 / g, the surface area is 154.3 m 2 / g. The methanol synthesis activity was evaluated with reference to Example 1, and 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

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
dispersityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a copper series catalyst for preparing methanol through CO / CO2 synchronous hydrogenation in an industrial atmosphere, and provides a methanol synthesis catalyst with the advantages that the activity is improved, and the service life is prolonged. The efficient conversion of preparing methanol through the CO / CO2 synchronous hydrogenation is realized. The catalyst is appliedto methanol synthesis; the selectivity reaches 100 percent. The catalyst is prepared from Cu, Mo2C and SiO2, wherein the mass percent of Cu, Mo2C and SiO2 is as fllows: 0 to 25 percent of Cu, 0 to 25percent of Mo2C and 50 to 75 percent of SiO2. The catalyst provided by the invention does not need to be reduced before use, and the large-scale popularization and application are convenient.

Description

technical field [0001] The invention belongs to the technical field of catalysts and relates to a methanol synthesis catalyst under low temperature conditions. Specifically related to CO / CO in industrial atmospheres 2 Copper-based catalyst for synchronous hydrogenation of methanol. Background technique [0002] Methanol is a basic chemical raw material as well as a potential vehicle fuel and hydrogen carrier. Industrial methanol production with synthesis gas (CO / CO 2 / H 2 ) as the raw material, Cu / ZnO / Al of Imperial Chemicals is mainly used in the fixed bed reactor 2 o 3 catalyst. In this catalyst, copper is the active component and zinc is the promoter. The synergistic effect between the two is the key factor for the high activity of the catalyst. Specifically, the role of ZnO is to store overflow hydrogen and promote the formation of Cu active sites. The reaction of Cu, the degree of dispersion of Cu and the density of Cu-Zn active sites determine the activity of th...

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 Applications(China)
IPC IPC(8): B01J27/22B01J35/10B01J37/08B01J37/02C07C29/154C07C31/04
CPCY02P20/52
Inventor 赵天生路甜甜张建利马清祥范素兵高新华
Owner NINGXIA UNIVERSITY
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