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

Preparation method of methane cracking catalyst

A technology for cracking catalysts and methane, which is applied in the field of preparation of methane cracking catalysts. It can solve the problems of waste liquid generation, waste of water, and uncontrollable loading of active components, etc., and achieve the goals of reducing environmental pollution, high conversion rate, and short preparation time. Effect

Pending Publication Date: 2022-02-08
无锡碳谷科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impregnation method is mainly to immerse the carrier in the metal solution. When the carrier reaches the adsorption equilibrium, the carrier is taken out for drying and roasting; this method has a significant disadvantage that it cannot control the loading of active components. This method is also called excessive impregnation method.
The co-precipitation method also requires several hours of reaction at 80-120°C in the process of preparing the catalyst, and then goes through the process of filtration, multiple cleaning, drying and roasting. The whole preparation process will waste a lot of water and waste liquid produce

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
  • Preparation method of methane cracking catalyst
  • Preparation method of methane cracking catalyst
  • Preparation method of methane cracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of preparation method of methane cracking catalyst, described preparation method comprises the steps:

[0039] (1) SiO 2 As a carrier, after drying in an oven at 110°C for 4 hours, take it out and place it in a desiccator to cool to room temperature;

[0040] (2) Weigh 3g SiO 2 Place in a ceramic crucible, use an acid burette to add deionized water drop by drop to the carrier, and stir at the same time during the dropping process until the deionized water just soaks the carrier, and the measured saturated adsorption capacity is 3.4mL / g;

[0041] (3) Weigh 19.1g Ni(NO 3 ) 2 ·6H 2 O and 3.0g Fe(NO3 ) 3 9H 2 O, mixed with deionized water to prepare 51 mL of metal salt solution.

[0042] (4) Add the metal salt solution dropwise into the 15.0 g carrier obtained in step (1), and stir while dripping. After the addition is completed, let stand at room temperature for 2 hours and dry at 80°C for 10 hours; the purpose of standing is to make the metal salt solution ...

Embodiment 2

[0046] A kind of preparation method of methane cracking catalyst, described preparation method comprises the steps:

[0047] (1) Add γ-Al 2 o 3 As a carrier, after drying in an oven at 120°C for 1 hour, take it out and place it in a desiccator to cool to room temperature;

[0048] (2) Weigh 3g γ-Al 2 o 3 Place in a ceramic crucible, use an acid burette to add deionized water drop by drop to the carrier, and stir at the same time during the dropping process until the deionized water just soaks the carrier, and the measured saturated adsorption capacity is 1.5mL / g;

[0049] (3) Weigh 19.9g Ni(NO 3 ) 2 ·6H 2 O and 6.9g Fe(NO 3 ) 3 9H 2 O, mixed with a mixed solution of deionized water and ethanol (ethanol: deionized water = 1:1) to prepare 22.5 mL of a metal salt aqueous solution.

[0050] (4) Add the metal salt solution dropwise into the 15.0 g carrier obtained in step (1), and stir while dripping. After the addition is completed, let stand at room temperature for 1 ho...

Embodiment 3

[0055] A kind of preparation method of methane cracking catalyst, described preparation method comprises the steps:

[0056] (1) Add γ-Al 2 o 3 As a carrier, after drying in an oven at 120°C for 1 hour, take it out and place it in a desiccator to cool to room temperature;

[0057] (2) Weigh 3g γ-Al 2 o 3 Place in a ceramic crucible, use an acid burette to add deionized water drop by drop to the carrier, and stir at the same time during the dropping process until the deionized water just soaks the carrier, and the measured saturated adsorption capacity is 1.5mL / g;

[0058] (3) Weigh 19g Ni(NO 3 ) 2 ·6H 2 O, 0.8g Cu(NO 3 ) 2 ·3H 2 O and 6.5gFe(NO 3 ) 3 9H 2 O was mixed with deionized water to prepare 22.5 mL of metal salt solution.

[0059] (4) Add the metal salt solution dropwise into the carrier obtained in step (1), and stir while dripping. After the dropwise addition is completed, let stand at room temperature for 4 hours, and dry at 120°C for 8 hours; the purpo...

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 preparation method of a methane cracking catalyst, which comprises the steps of: (1) drying a carrier at a temperature of 100-120 DEG C for 1-5 h, placing the carrier in a dryer, and cooling to a room temperature; (2) dropwise adding a metal salt solution into the carrier obtained in the step (1), stirring while dropwise adding, standing at room temperature for 1-4 hours after dropwise adding, and drying at 80-120 DEG C for 8-15 hours; and (3) after drying is finished, grinding until no obvious lumps exist, then roasting for 4-8 hours at 400-800 DEG C, cooling to room temperature, and grinding again to obtain powder, namely the methane cracking catalyst. The dosage of the metal salt solution is equal to the product of the saturated adsorption capacity of the carrier and the mass of the carrier. The methane cracking catalyst is prepared by using an equivalent-volume impregnation method, no redundant liquid is generated in the preparation process, all active substances are adsorbed on the surface of the carrier, and the loading capacity of the active components can be well controlled.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to a method for preparing a methane cracking catalyst. Background technique [0002] A carbon nanotube (CNT) is a tubular material composed of carbon (layers of graphite) whose diameter is measured in nanometers (equivalent to one billionth of a meter or one ten-thousandth the thickness of a human hair). The graphite layers look much like rolled sheets, a continuous grid of complete hexagons, with the carbon molecules at the vertices of the hexagons. Carbon nanotubes can be divided into various structures according to the length, thickness, helicity and number of layers. For example, according to the number of layers, they can be divided into single-walled carbon nanotubes (SWCNT), double-walled carbon nanotubes (DWCNT) and multi-walled carbon nanotubes. carbon nanotubes (MWCNTs). The diameter of SWCNT is collectively referred to as 0.5 to several nanometers, and the ...

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): B01J23/755B01J35/02C01B32/162
CPCB01J23/755B01J23/002C01B32/162C01B2202/34C01B2202/36C01P2002/01B01J2523/00B01J35/40B01J2523/41B01J2523/842B01J2523/847B01J2523/31B01J2523/17
Inventor 王斌孟德海郁志新
Owner 无锡碳谷科技有限公司
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