Supercharge Your Innovation With Domain-Expert AI Agents!

Graphene-loaded transition metal compound, preparation method thereof and application of graphene-loaded transition metal compound in catalytic oxidation fuel oil desulfurization

A transition metal and graphene technology, applied in the refining of oxygen-containing compounds, catalysts for physical/chemical processes, chemical instruments and methods, etc., can solve the problems of low removal rate of sulfur-containing compounds, poor reusability, and difficulty in complete removal. , to achieve the effect of good reusability, convenient separation and recovery, and good dispersibility

Pending Publication Date: 2021-11-02
ZHONGBEI UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of low catalytic activity, low removal rate of sulfur compounds in fuel oil with relatively high concentration, long removal time, difficulty in complete removal, low stability and poor reusability of existing catalysts, and provides Graphene supported transition metal compound and its preparation method and its application in catalytic oxidation of fuel oil desulfurization

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
  • Graphene-loaded transition metal compound, preparation method thereof and application of graphene-loaded transition metal compound in catalytic oxidation fuel oil desulfurization
  • Graphene-loaded transition metal compound, preparation method thereof and application of graphene-loaded transition metal compound in catalytic oxidation fuel oil desulfurization
  • Graphene-loaded transition metal compound, preparation method thereof and application of graphene-loaded transition metal compound in catalytic oxidation fuel oil desulfurization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Polyethyleneimine modified graphene oxide loaded P 2 W 18 Composite catalyst P 2 W 18 -Preparation of PEI / GO: The steps are as follows: add 0.05 g polyethyleneimine-modified graphene oxide to 10 mL of water, adjust the pH value of the solution to 4 with 4 mol / L hydrochloric acid solution, and make it A liquid, 0.2 g P 2 W 18 Dissolve in 11 mL deionized water, adjust the pH value of the solution to 4.7 with 4 mol / L hydrochloric acid solution, and make it B liquid; slowly add liquid B dropwise into liquid A, adjust the pH value of the solution to 4.5 with 4 mol / L hydrochloric acid solution, and store at room temperature React for 10 hours, centrifuge at 4000 rpm (25°C) for about 10 minutes to obtain a solid product, wash with deionized water several times, and vacuum freeze-dry at -55°C for 48 hours to obtain polyethyleneimine-modified graphene oxide-supported P 2 W 18 Composite catalyst (P 2 W 18 -PEI / GO).

[0040] Preparation of graphene-supported tun...

Embodiment 2

[0042] Example 2: Polyethyleneimine modified graphene oxide loaded PW 12 Composite catalyst PW 12 -Preparation of PEI / GO: The steps are as follows: add 0.1g of polyethyleneimine-modified graphene oxide to 20 mL of water, adjust the pH of the solution to 4.1 with 4 mol / L hydrochloric acid solution, and make it A solution, 0.6g PW 12 Dissolve in 10 mL deionized water to form B solution; slowly drop B solution into A solution, adjust the pH value of the solution to 4.8 with 4 mol / L hydrochloric acid solution, react at room temperature for 10 hours, and centrifuge at 4000 rpm (25°C) for about 15 minutes , to obtain a solid product, washed with deionized water several times, and vacuum freeze-dried at -55°C for 48 hours to obtain polyethyleneimine-modified graphene oxide-supported PW 12 Composite catalyst (PW 12 -PEI / GO).

[0043] Preparation of graphene-supported tungsten carbide heterogeneous catalyst: the steps are as follows: polyethyleneimine-modified graphene oxide-support...

Embodiment 3

[0045] Example 3: Polyethyleneimine modified graphene oxide supported SiW 12 Composite catalyst SiW 12- Preparation of PEI / GO: The steps are as follows: add 0.15 g of polyethyleneimine-modified graphene oxide to 30 mL of water, adjust the pH of the solution to 4.3 with 4 mol / L hydrochloric acid solution, and make it A solution, 0.6 g SiW 12 Dissolve in 15mL deionized water to form B solution; slowly drop B solution into A solution, adjust the pH value of the solution to 5 with 4 mol / L hydrochloric acid solution, react at room temperature for 12 hours, and centrifuge at 4000rpm (25°C) for about 12min to obtain The solid product was washed several times with deionized water, and then vacuum freeze-dried at -55°C for 48 hours to obtain polyethyleneimine-modified graphene oxide-supported SiW 12 Composite catalyst (SiW 12 -PEI / GO).

[0046] The preparation of graphene-supported tungsten-doped tungsten nitride heterogeneous catalyst: the steps are as follows: polyethyleneimine-mo...

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 belongs to the technical field of heterogeneous catalyst preparation, and in allusion to the defects that an existing catalyst is low in catalytic activity, low in removal rate of large-concentration sulfur-containing compounds in fuel oil, long in removal time, difficult in complete removal, low in stability, poor in reusability and the like, provides a graphene-loaded transition metal compound, a preparation method thereof and application of the graphene-loaded transition metal compound in catalytic oxidation fuel oil desulfurization. Graphene oxide is taken as a carrier, polyoxometallate is taken as a tungsten source, an N-containing polymer is taken as a carbon source and a nitrogen source, a graphene oxide-loaded polyoxometallate precursor is prepared through an electrostatic bonding method, and a graphene-loaded transition metal carbide, tungsten-doped tungsten nitride or metal tungsten heterogeneous catalyst is prepared through high-temperature pyrolysis; and the obtained catalyst is good in chemical stability, low in price, environment-friendly and high in catalytic performance. When the catalyst is used in catalytic oxidation desulfurization of fuel oil, desulfurization is complete, the desulfurization speed is increased, the stability is improved, the reusability is high, and the catalyst has important significance on fuel oil desulfurization and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of preparation of heterogeneous catalysts, and in particular relates to a graphene-loaded transition metal compound, a preparation method thereof, and an application in catalytic oxidation of fuel oil desulfurization. It specifically involves the preparation of graphene-supported transition metal carbide, tungsten-doped tungsten nitride or metal tungsten heterogeneous catalyst and its application in fuel oil oxidative desulfurization. The graphene-supported transition metal carbide, tungsten-doped tungsten nitride or metal tungsten heterogeneous catalyst is prepared by using metal oxo salt as tungsten source and N-containing polymer as carbon source and nitrogen source. Background technique [0002] The development of the global economy is inseparable from fossil fuels. From power generation to transportation, liquid fuels (gasoline, diesel, etc.) play a huge role, but liquid fuels contain a large number of ...

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): B01J27/24C10G27/12
CPCB01J27/24C10G27/12C10G2300/202
Inventor 王蕊欣刘叶峰左鹏焦娇吕迎周喜阳焦纬洲
Owner ZHONGBEI UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com