Catalyst with high carbon dioxide hydrogenation methanation performance, method for preparing catalyst and application thereof

A technology of hydromethanation and carbon dioxide, applied in the direction of metal/metal oxide/metal hydroxide catalyst, carbon compound catalyst, catalyst activation/preparation, etc., can solve complex process flow, increase equipment investment and process energy consumption , Reduce product gas price competitiveness and other issues

Active Publication Date: 2017-01-04
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process increases equipment investment and process energy consumption, complicates the process and reduces the price competitiveness of product gas

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

[0036] Alumina-zirconia composite carrier is prepared, its weight composition is: 60% of alumina and 40% of zirconia. Take aluminum nitrate and zirconyl nitrate according to the ratio of alumina and zirconium dioxide in the carrier, add deionized water to prepare a solution with a total concentration of metal ions of 0.5mol / L; meanwhile, prepare ammonium carbonate solution with deionized water, wherein The cation concentration is 1.2mol / L. The two solutions were added dropwise into a beaker filled with an appropriate amount of deionized water in a co-current manner, and the pH value of the liquid in the beaker was controlled at 8. The precipitation process was carried out at room temperature and under stirring conditions. After the precipitation was completed, it was aged in a 60°C water bath with stirring for 1 h. The precipitate was collected and washed with deionized water to pH 7.2. The precipitate was dried at 100°C for 12 hours, and then calcined at 450°C for 4 hours....

Embodiment 2

[0041] Alumina-zirconia composite carrier is prepared, its weight composition is: 70% of alumina and 30% of zirconia. Weigh aluminum nitrate and zirconyl nitrate according to the ratio of alumina and zirconia in the carrier, add deionized water to prepare a solution with a total concentration of metal ions of 2mol / L; at the same time, use deionized water to prepare ammonium carbonate solution, in which cation The concentration is 1.5mol / L. The two solutions were added dropwise into a beaker filled with an appropriate amount of deionized water in a co-current manner, and the pH value of the liquid in the beaker was controlled at 8. The precipitation process was carried out at room temperature and under stirring conditions. After the precipitation was completed, it was aged for 3 hours in a water bath at 80°C with stirring. The precipitate was collected and washed to pH 7 with deionized water. The precipitate was dried at 80°C for 15 hours, and then calcined at 550°C for 2 ho...

Embodiment 3

[0046] Alumina-zirconia composite carrier is prepared, its weight composition is: 80% of alumina and 20% of zirconia. Take aluminum nitrate and zirconyl nitrate according to the ratio of alumina and zirconium dioxide in the carrier, add deionized water to prepare a solution with a total concentration of metal ions of 0.5mol / L; meanwhile, prepare ammonium carbonate solution with deionized water, wherein The cation concentration is 1mol / L. The two solutions were added dropwise into a beaker filled with an appropriate amount of deionized water in a co-current manner, and the pH value of the liquid in the beaker was controlled at 9. The precipitation process was carried out at room temperature and under stirring conditions. After the precipitation was completed, it was aged in a water bath at 50°C with stirring for 2 hours. The precipitate was collected and washed with deionized water to pH 7.1. The precipitate was dried at 120°C for 10 hours, and then calcined at 600°C for 5 h...

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 catalyst with high carbon dioxide hydrogenation methanation performance. The catalyst comprises, by weight, 45-60% of main active components, 5-15% of precious metal active components, 2-8% of structural promoters, 5-15% of rare earth promoters and the balance vectors. The catalyst has the advantages that the catalyst is excellent in carbon dioxide methanation reaction performance, and accordingly hydrogen components in methanation products can be effectively reduced.

Description

technical field [0001] The invention belongs to a preparation method and application of a methanation catalyst, in particular to a high-performance carbon dioxide hydromethanation catalyst and its preparation method and application. Background technique [0002] Methane is an important fuel and chemical intermediate, which can be used in the synthesis of various compounds such as ethylene, acetylene, and formaldehyde. In recent years, with the rapid increase in the demand for natural gas in my country, the gap between the supply and demand of domestic natural gas resources has gradually increased. Using coal-to-synthesis gas as raw material and producing substitute natural gas through methanation reaction is an effective way to improve domestic natural gas supply. Syngas methanation is the core link of the process. [0003] The main components of coal-to-synthesis gas are CO and hydrogen, and CH can be generated through methanation reaction under the condition of catalyst p...

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): B01J23/89C07C1/12C07C9/04
CPCB01J23/002B01J23/8986B01J37/024B01J37/03B01J2523/00C07C1/12C07C2523/89B01J2523/31B01J2523/3712B01J2523/3737B01J2523/48B01J2523/72B01J2523/3706B01J2523/3768C07C9/04
Inventor 刘平张侃吉可明荀家瑶田艳青
Owner SHANXI INST OF COAL CHEM CHINESE ACAD 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