Check patentability & draft patents in minutes with Patsnap Eureka AI!

Heteroatom-containing carbon nanomaterial as well as preparation method and application thereof, and hydrocarbon dehydrogenation reaction method

A nano-carbon material and heteroatom technology, which is applied in the field of hydrocarbon dehydrogenation reaction, can solve the problem of insufficient catalytic activity, and achieve the effects of good catalytic activity, good stability and little structural influence.

Active Publication Date: 2017-08-04
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical problem that the catalytic activity of existing nano-carbon materials is still not high enough when they are used as catalysts for the oxidative dehydrogenation of hydrocarbons, and to provide a heteroatom-containing nano-carbon material, which contains heteroatom-containing nano-carbon materials When used as a catalyst for the oxidative dehydrogenation of hydrocarbons, it can not only obtain high catalytic stability, but also significantly improve the catalytic activity

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
  • Heteroatom-containing carbon nanomaterial as well as preparation method and application thereof, and hydrocarbon dehydrogenation reaction method
  • Heteroatom-containing carbon nanomaterial as well as preparation method and application thereof, and hydrocarbon dehydrogenation reaction method
  • Heteroatom-containing carbon nanomaterial as well as preparation method and application thereof, and hydrocarbon dehydrogenation reaction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] (1) 10g of multi-walled carbon nanotubes (specific surface area is 168m 2 / g, the weight loss rate w in the temperature range of 400-800°C 800 , the weight loss rate w in the temperature range of 400-500°C 500 ,w 500 / w 800 0.11, purchased from Chengdu Organic Chemistry Co., Ltd., Chinese Academy of Sciences) and 500mL acid solution (H 2 SO 4 The concentration is 1380g / L, HNO 3 The concentration of the acid solution is 227.5g / L, the solvent of the acid solution is water), and the obtained dispersion is placed in an ultrasonic cleaner for ultrasonic treatment, wherein, the temperature of the dispersion in the ultrasonic cleaner is controlled to be 50°C, and the duration of the ultrasonic treatment The time is 6 hours, and the frequency of the ultrasound is 45kHz. After the ultrasonic treatment is completed, the dispersion liquid is filtered, and the collected solid matter is washed with deionized water until the pH of the washing liquid is in the range of 6-7, and ...

Embodiment 2

[0093] The same method as in Example 1 was used to prepare heteroatom-containing carbon nanomaterials, except that in step (2), the oxidized carbon nanomaterials were calcined in a nitrogen atmosphere at a temperature of 550° C. for 5 hours. The composition and property parameters of the prepared heteroatom-containing carbon nanomaterials are listed in Table 1.

Embodiment 3

[0103] The same method as in Example 1 is used to prepare heteroatom-containing nano-carbon materials, the difference is that in step (1), in the acid solution, H 2 SO 4 The concentration is 0g / L, HNO 3 The concentration is 910g / L. The prepared heteroatom-containing carbon nanomaterials and their property parameters are listed in Table 1.

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 heteroatom-containing carbon nanomaterial as well as a preparation method and application thereof, and a hydrocarbon dehydrogenation reaction method. The heteroatom-containing carbon nanomaterial contains oxygen, hydrogen and carbon; in an X-ray photoelectron spectroscopy (XPS), a molar ratio of the content of oxygen element, determined by using a spectrum peak corresponding to a C-O group, to the content of oxygen element, determined by using a spectrum peak corresponding to a group described in the description, is greater than 1. The heteroatom-containing carbon nanomaterial shows good catalytic activity in an oxidative dehydrogenation reaction of hydrocarbons, still maintains the good characteristics of carbon nanomaterials, and has better stability. The preparation method of the heteroatom-containing carbon nanomaterial can stably regulate and control the content and existence form of heteroatoms in the carbon nanomaterial, and has little influence on the structure of the carbon nanomaterial.

Description

technical field [0001] The invention relates to a heteroatom-containing nano-carbon material and its preparation method and application, and also relates to a hydrocarbon dehydrogenation reaction method. 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. At present, various types of carbon materials have been reported to be used in catalytic reactions such as alkane activation and oxidative dehydrogenation. For example, in the 1960s and 1970s, researchers found that coke can catalyze the oxidative deh...

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): B01J21/18B82Y30/00C07C5/48C07C11/08C07C11/167
CPCB82Y30/00C07C5/48B01J21/18B01J21/185C07C2521/18B01J35/613B01J35/615C07C11/08C07C11/167
Inventor 李嘉权荣峻峰于鹏谢婧新史春风
Owner CHINA PETROLEUM & CHEM CORP
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