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

A carbon material and heteroatom technology, applied in the field of heteroatom-containing carbon materials and their preparation, can solve the problems of low product selectivity and the like
CN109304196BActive Publication Date: 2021-05-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2021-05-14

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Abstract

The invention discloses a heteroatom-containing carbon material, its preparation method and application, and a hydrocarbon oxidative dehydrogenation method. The heteroatom-containing carbon material contains oxygen, nitrogen, hydrogen and carbon elements. The heteroatom-containing carbon material has X In the ray diffraction pattern, there are diffuse peaks between 20°-30° and 40°-50° at the 2θ angle, and the surface oxygen content determined by X-ray photoelectron spectroscopy is a, determined by elemental analysis The content of bulk oxygen is b, a / b≥2. As a catalyst for the oxidative dehydrogenation reaction of hydrocarbons, the heteroatom-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 heteroatom-containing carbon material according to the present invention is low in cost and easy to obtain.
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Description

technical field

[0001] The invention relates to a heteroatom-containing carbon material and its preparation method and application. The invention also relates to a hydrocarbon oxidation dehydrogenation method using the heteroatom-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 an...

Claims

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