Device for directly synthesizing C1-C4 alcohol by CH4/CO2 at low temperature and synthesis method thereof

A C1-C4, CO2 technology, applied in the direction of chemical instruments and methods, chemical/physical processes, chemical/physical/physical chemical processes, etc., can solve the problems such as no alcohol, to avoid sintering and carbon deposition deactivation, The effect of high stability and simple process

Inactive Publication Date: 2019-04-12
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its characteristics are: focusing on the catalysis of nickel, copper and stainless steel electrodes in dielectric barrier reactors, it is found that copper electrodes and nickel electrodes are beneficial to the generation of acids (C1-C4), especially for formic acid. Under the reaction conditions, the total selectivity of acids is less than 1.5%, but there is no report of alcohols

Method used

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  • Device for directly synthesizing C1-C4 alcohol by CH4/CO2 at low temperature and synthesis method thereof
  • Device for directly synthesizing C1-C4 alcohol by CH4/CO2 at low temperature and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] One CH 4 / CO 2 A device for directly synthesizing C1-C4 alcohols at low temperature, the device includes a 2mm thick stainless steel plate I1 as a high voltage electrode, a 2mm thick stainless steel plate II3 as a ground electrode, and a 2mm thick stainless steel plate III4 as a ground electrode;

[0056] The stainless steel plate I1 is located between the stainless steel plate II3 and the stainless steel plate III4, and the stainless steel plate II3, the stainless steel plate I1 and the stainless steel plate III4 are parallel to each other;

[0057] The upper and lower surfaces of the stainless steel plate I1 are covered with a 1mm thick glass layer 2;

[0058] The outer surface of the stainless steel plate II3 and the outer surface of the stainless steel plate III4 are in contact with the refrigeration unit 5;

[0059] The discharge distance between the stainless steel plate II3 and the stainless steel plate I1 is equal to the discharge distance between the stainless steel pla...

Embodiment 2

[0061] A CH using the device described in Example 1 4 / CO 2 A method for directly synthesizing C1-C4 alcohols at low temperature, the method is: using low-temperature plasma to selectively activate methane and carbon dioxide to generate C1-C4 alcohols;

[0062] The synthesis conditions are: the refrigeration unit 5 controls the reaction temperature to 30°C, the molar ratio of methane and carbon dioxide is 1, the residence time of methane and carbon dioxide in the plasma discharge zone is 4s, and the power input voltage is 40V, The input current is 1.00A, and the discharge frequency is 12kHz.

[0063] Conclusion: Alcohol products are detected, and it is found that low temperature is beneficial to the integration of methane dry weight into alcohols. Compared with the reaction raw materials methane and carbon dioxide, the reaction products are weaker in stability and relatively active, suggesting that low temperature inhibits the further decomposition of products, thus promoting alcoho...

Embodiment 3

[0065] The difference from Embodiment 2 is that the refrigeration unit 5 controls the reaction temperature to 90°C.

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Abstract

The invention relates to a device for directly synthesizing C1-C4 alcohol by CH4 / CO2 at low temperature and a synthesis method thereof, belonging to the fields of methane and carbon dioxide resource utilization and plasma catalytic chemical synthesis. The method is characterized by selectively activating the methane and the carbon dioxide to generate the C1-C4 alcohol by adopting a synergistic action of low-temperature plasma and a supported catalyst and the action of additive gas. By the adoption of the device for directly synthesizing the C1-C4 alcohol by the CH4 / CO2 at the low temperature and the synthesis method thereof, a new reaction process of one-step synthesis of the C1-C4 alcohol by methane dry reforming is achieved.

Description

Technical field [0001] The present invention relates to a CH 4 / CO 2 A device for directly synthesizing C1-C4 alcohols at low temperature and a synthesis method thereof belong to the field of resource utilization of methane and carbon dioxide, and plasma catalytic chemical synthesis. Background technique [0002] Methane is a rich and cheap low-carbon energy and chemical raw material. In addition, methane and carbon dioxide are the main greenhouse gases in the atmosphere, but they are also potential "carbon resources". If it can "turn waste into treasure", it can not only alleviate the ecological and environmental problems caused by greenhouse gas emissions, but also realize the sustainable recycling of carbon resources. Therefore, the research on the co-conversion of methane and carbon dioxide is of great significance to natural gas chemical industry, petrochemical industry and environmental protection, and has attracted widespread attention from academic and industrial circles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/08C10L1/02
CPCB01J19/088B01J2219/0894C10L1/02
Inventor 王丽朱益民朱斌段云飞
Owner DALIAN MARITIME UNIVERSITY
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