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Graphite intercalation method, graphite intercalation product prepared by method and hydrocarbon oxidation method

A technology of graphite intercalation and graphite, which is applied in the direction of graphite, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high energy consumption, unfriendly environment, complex graphite intercalation process, etc., to achieve improved catalytic activity, Realize the effect of continuous operation and lower temperature

Active Publication Date: 2021-03-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a graphite intercalation method and a graphite intercalation material prepared by the method and a hydrocarbon oxidation method in order to overcome the problems of complex graphite intercalation process, high energy consumption and unfriendly environment in the prior art

Method used

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specific Embodiment approach

[0017] According to a specific embodiment of the present invention, the method may further include: before the contacting, injecting purge gas into the moving bed reactor, so as to blow out the air in the moving bed reactor. The present invention has a wide selection range for the purging gas, as long as it does not participate in the intercalation reaction, for example, it can be an inert gas, and the inert gas can be selected from at least one of nitrogen, helium, neon and argon. kind.

[0018] According to the present invention, the adding speed of the graphite can be properly selected according to the specifications of the moving bed reactor, preferably, relative to a 1L moving bed reactor, the adding speed of the graphite can be 0.01-100g / min, more preferably 0.1-10g / min. On this basis, those skilled in the art can adjust the feed rate of moving bed reactors with different specifications in proportion according to the specifications of the moving bed reactors.

[0019] ...

Embodiment approach

[0027] The metal halide may be at least one of metal chloride, bromide and iodide. According to a preferred embodiment of the present invention, the metal halide is selected from at least one of ferric chloride, cobalt chloride, nickel chloride, copper chloride, magnesium chloride, aluminum chloride and potassium iodide, more preferably chlorine At least one of copper chloride, ferric chloride, magnesium chloride and aluminum chloride.

[0028] According to the present invention, preferably, the oxyacid is nitric acid and / or sulfuric acid, and more preferably, the metal salt of the oxyacid is selected from at least one of iron nitrate, copper nitrate, nickel sulfate and copper sulfate.

[0029] Preferably, the transition metal in the transition metal oxide can be selected from at least one of VB group metals, VIB group metals and VIIB group metals, further preferably, the transition metal can be selected from chromium, vanadium and manganese at least one of . According to a ...

Embodiment 1

[0043] Into the moving bed reactor (1 L, the same below) was introduced into the moving bed reactor (1 L, the same below) as a purge gas of nitrogen for 5 minutes, in order to blow out the air in the moving bed reactor. From the lower part of the moving bed reactor, add 350 ° C gas-phase ferric chloride carried by nitrogen (the mass ratio of nitrogen and ferric chloride is 1:1), and the upper part adds flake graphite (purchased from Sinopharm Chemical Reagent Co., Ltd.) as raw material. ), the intercalation agent ferric chloride and flake graphite are reversely contacted in the moving bed reactor for intercalation reaction. Wherein, the adding rate of graphite flakes is 0.2g / min; the weight ratio of graphite flakes to ferric chloride gas is 100:400, and the intercalation reaction conditions include: the temperature is 380°C, the graphite flakes in the moving bed reactor The residence time is 3 hours; the bottom temperature of the moving bed reactor is about 10°C higher than th...

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Abstract

The invention relates to the field of graphite intercalation materials, and discloses a graphite intercalation method, a graphite intercalation product prepared by the method and a hydrocarbon oxidation method. The graphite intercalation method comprises the following steps: in a moving bed reactor, under an intercalation reaction condition, enabling graphite used as a raw material to contact withan intercalating agent, wherein at least part of the intercalating agent is in a gas phase, and the intercalation reaction conditions are as follows: the temperature is 200 DEG C or above. The graphite intercalation method provided by the invention is carried out in the moving bed reactor, continuous operation can be realized, a washing step can be omitted, and industrial production is facilitated. The graphite intercalation product prepared by the method has improved catalytic activity on oxidation reaction of hydrocarbon substances, particularly complete oxidation reaction, so that not onlycan higher hydrocarbon substance conversion rate be obtained, but also the temperature of the oxidation reaction can be effectively reduced.

Description

technical field [0001] The invention relates to the field of graphite intercalation, in particular to a graphite intercalation method and a graphite intercalation prepared by the method, and also relates to a hydrocarbon oxidation method using the graphite intercalation as a catalyst. Background technique [0002] Graphite crystal is a stacked structure of hexagonal rings (the distance between carbon atoms is 0.142nm) formed by covalent bonds of carbon atoms. The distance between layers is relatively large (0.335nm). Various molecules, atoms or ions are inserted between the layers of the crystal without destroying its two-dimensional structure, but the distance between the layers is increased to form a graphite-specific compound called graphite interlayer compound, also known as graphite intercalation compound . Compared with graphite, graphite intercalation compound has higher conductivity and stable chemical properties. In addition, graphite intercalation compound can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/22C01B32/50B01J27/10
CPCC01B32/22B01J27/10C01B32/50
Inventor 史春风荣峻峰宗明生
Owner CHINA PETROLEUM & CHEM CORP
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