Efficient methane and carbon dioxide reforming Ni/SiO2 catalyst and electrostatic spinning preparation method

A carbon dioxide and catalyst technology, applied in the field of high-efficiency catalysts, can solve the problems that electrospinning technology has not been widely reported, and achieve the effects of simple operation, high catalytic activity and good anti-carbon deposition performance

Active Publication Date: 2015-04-15
BEIJING UNIV OF CHEM TECH
View PDF1 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented describes how it can make efficient use of mature resources by making certain chemicals from coal or other sources like biomass through processes that involve electric discharge (ES). These techniques allow for more precise control over production process variables such as temperature, pressure, pH levels, etc., resulting in improved efficiency and productivity compared with traditional methods.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing novel and effective catalysis systems without causing severe negative effects on our planet's ecosystem due to their poor durability against clogging caused by sulfur compounds or nitrides during various stages of fuel consumption processes like combustion engines. Current solutions involve expensive materials used alone or combined together, leading to economic disadvantages over time.

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
  • Efficient methane and carbon dioxide reforming Ni/SiO2 catalyst and electrostatic spinning preparation method
  • Efficient methane and carbon dioxide reforming Ni/SiO2 catalyst and electrostatic spinning preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Weigh 4.7g tetraethyl orthosilicate (TEOS) and 1.1g polyvinylpyrrolidone (PVP) and 1.13g nickel nitrate respectively, then dissolve TEOS in 0.95g dilute hydrochloric acid (substance concentration 0.080mol / L) and 1.25g In ethanol, PVP is dissolved in 4.12g N,N-dimethylformamide (DMF) and 2.50g dimethyl sulfoxide (DMSO), and nickel nitrate is dissolved in 1.82g ethanol; The three solutions were placed on a magnetic stirrer and stirred at a constant speed for 9 hours, and finally the three solutions were fully mixed and placed on a magnetic stirrer to stir for 0.5 hours to obtain a spinning precursor. Operations were performed at 25°C.

[0024] 2. Put the mixed liquid obtained in 1 into the syringe, then put the syringe into the push device, stick a layer of metal foil on the receiver, and the speed is 80r / min. The voltage was adjusted to 12kV, the spinning liquid feeding rate was 1ml / h, and the spinning was started.

[0025] 3. Dry the sample obtained in 2 at 120°C f...

Embodiment 2

[0028] 1. Nickel nitrate was dissolved in 1.82g of water; others were consistent with step 1 in Example 1.

[0029] 2. Same as Step 2 of Example 1.

[0030]3. Same as Step 3 of Example 1.

[0031] 4. Take 0.1g of the sample obtained in step 3 and place it in a quartz tube. After reduction at 600°C, react with methane, carbon dioxide and argon at a flow ratio of 1:1:2 at a temperature of 700°C. The catalyst evaluation results are shown in the table 1. CH 4 , CO 2 The highest conversion rates were 64.97%, 78.23%; H 2 The highest selectivities of , CO are 89.98%, 96.28%, respectively.

Embodiment 3

[0033] 1. TEOS was dissolved in 0.85g dilute nitric acid (substance concentration 0.080mol / L) and 1.25g ethanol; others were consistent with step 1 in Example 1.

[0034] 2. Same as Step 2 of Example 1.

[0035] 3. Same as Step 3 of Example 1.

[0036] 4. Take 0.1g of the sample obtained in step 3 and place it in a quartz tube. After reduction at 600°C, react with methane, carbon dioxide and argon at a flow ratio of 1:1:2 at a temperature of 700°C. The catalyst evaluation results are shown in the table 1. CH 4 , CO 2 The highest conversion rates were 60.56%, 75.37%; H 2 The highest selectivities of , CO are 87.32%, 95.42%, respectively.

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 an efficient methane and carbon dioxide reforming Ni/SiO2 catalyst and an electrospinning preparation method, and belongs to the technical field of catalyst preparation. Through electrospinning technique, an efficient silica nanofiber supported nickel nanoparticle catalyst can be prepared. The preparation method comprises the following steps: first preparing a spinning precursor solution, then electrospinning, and finally drying and roasting to prepare a finished product. The preparation method has the advantages of easily obtained raw materials, simple operation, and good controllability, and is conducive to industrialized enlargement. The catalyst used in reaction for preparation of synthesis gas by methane and carbon dioxide catalytic reforming, and has the advantages of high catalytic activity, good resistance to deposition of carbon, good stability and the like.

Description

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

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
Owner BEIJING UNIV OF CHEM TECH
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