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

A carbon material containing metal atoms, its preparation method and application, and a method for oxidative dehydrogenation of hydrocarbons

A metal atom and carbon material technology, applied in the field of hydrocarbon oxidative dehydrogenation, can solve the problem of low product selectivity, and achieve the effects of improving olefin selectivity, improving reaction safety, and improving raw material utilization rate

Active Publication Date: 2021-06-11
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the technical problem of low product selectivity of the existing nano-carbon materials when used as catalysts for the oxidative dehydrogenation of hydrocarbons, and provide a carbon material containing metal atoms, which can be used in the oxidative dehydrogenation of hydrocarbons. Shows significantly improved product selectivity in hydrogen reactions

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
  • A carbon material containing metal atoms, its preparation method and application, and a method for oxidative dehydrogenation of hydrocarbons
  • A carbon material containing metal atoms, its preparation method and application, and a method for oxidative dehydrogenation of hydrocarbons
  • A carbon material containing metal atoms, its preparation method and application, and a method for oxidative dehydrogenation of hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] According to a second aspect of the present invention, the present invention provides a method for preparing a carbon material containing metal atoms, the method comprising the following steps:

[0037] (1) supporting a metal compound on the raw carbon material to obtain a carbon material containing the metal compound;

[0038] (2) Calcining the carbon material containing the metal compound at a temperature of 500-1400° C. in an inert atmosphere.

[0039] According to the method described in the second aspect of the present invention, the raw carbon material contains oxygen element, hydrogen element and carbon element, based on the total amount of the raw carbon material and in terms of elements, the content of the oxygen element is 0.5-10% by weight, the content of the hydrogen element is 0.1-3% by weight, and the content of the carbon element is 87-99.4% by weight. From the perspective of further improving the product selectivity of the finally prepared metal-atom-co...

Embodiment 1

[0080] (1) Activated carbon (purchased from Green World Chemical Carbon Co., Ltd., which is purchased from Green World Chemical Carbon Co., Ltd., with a volume average particle diameter of 200 μm, and its property parameters are listed in Table 1) as the raw carbon material. In the X-ray diffraction spectrum of the raw carbon material, in The 2θ angle is between 20 °-30 ° and 40 °-50 °, there are diffuse peaks respectively, there are no diffraction peaks and sharp peaks in the rest of the positions) mixed with ferric nitrate aqueous solution (the content of ferric nitrate is 1.7g), in Immerse at room temperature (20°C) for 24 hours, and dry the impregnated mixture in an air atmosphere at 100°C for 6 hours to obtain a carbon material containing a metal compound, wherein the weight ratio of the raw carbon material to the metal compound is 1:0.17, and the raw carbon The weight ratio of material to water is 1:1.5.

[0081] (2) The carbon material containing the metal compound obta...

Embodiment 2

[0083] Adopt the same method as Example 1 to prepare the carbon material containing metal atoms, the difference is that in step (2), the temperature of roasting is 1100 ° C, so as to obtain the carbon material containing metal atoms according to the present invention (volume average particle diameter is 197 μm ), its property parameters are listed in Table 1, in the X-ray diffraction spectrum of the metal atom-containing carbon material, there are sharp peaks corresponding to graphitized carbon and sharp peaks corresponding to metal elements.

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a carbon material containing metal atoms, its preparation method and application, and a method for oxidative dehydrogenation of hydrocarbons. The carbon material containing metal atoms contains oxygen, hydrogen, carbon, metal and optional nitrogen. In the metal atom carbon material, the content of surface oxygen determined by X-ray photoelectron spectroscopy is a, the content of bulk oxygen determined by elemental analysis is b, and a / b≥2. As a catalyst for the oxidative dehydrogenation reaction of hydrocarbons, the metal atom-containing carbon material can obtain significantly improved olefin selectivity, reduce the amount of raw materials for ineffective combustion, and improve raw material utilization and reaction safety. Also, the metal atom-containing carbon material according to the present invention is low in cost and easy to obtain.

Description

technical field [0001] The invention relates to a metal atom-containing carbon material and its preparation method and application, and also relates to a hydrocarbon oxidation dehydrogenation method using the metal atom-containing carbon material as a catalyst. Background technique [0002] Carbon materials exist in various morphological structures, including carbon nanotubes, graphite, graphene, nanodiamonds, activated carbon, onion carbon, etc. Compared with traditional metal oxide catalysts, carbon materials have the advantages of being environmentally friendly, renewable, and low energy consumption. Carbon materials also have good thermal conductivity, so the energy utilization rate is high, which is conducive to reducing the reaction temperature and improving product selectivity. [0003] Currently, various types of carbon materials have been reported for catalytic reactions such as alkane activation and oxidative dehydrogenation. For example, in the 1960s and 1970s, r...

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 Patents(China)
IPC IPC(8): B01J27/24B01J23/745C07C5/48C07C11/08
CPCB01J23/745B01J27/24B01J35/1019B01J35/1023C07C5/48C07C2523/745C07C2527/24C07C11/08
Inventor 谢婧新荣峻峰于鹏林伟国宗明生
Owner CHINA PETROLEUM & CHEM CORP
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