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Process for supercritical CO2 hydrogenation based on amorphous alloy

An amorphous alloy and supercritical technology, which is applied in the field of supercritical CO2 hydrogenation to achieve the effects of saving heating costs, strong reaction stability and reducing energy consumption

Active Publication Date: 2020-05-08
SHANGHAI NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is exactly in order to overcome the conventional metal catalyzed CO in the above-mentioned prior art 2 In the hydrogenation reaction, a higher hydrogen-carbon ratio and a higher temperature are required, and a method for realizing CO at a lower hydrogen-carbon ratio and under mild conditions is provided. 2 Hydrogenation based amorphous alloys for supercritical CO 2 hydrogenation process

Method used

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  • Process for supercritical CO2 hydrogenation based on amorphous alloy
  • Process for supercritical CO2 hydrogenation based on amorphous alloy
  • Process for supercritical CO2 hydrogenation based on amorphous alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Reaction system: 10mL DMF as reaction solvent, add 2.5mL organic amine compound (as organic base, the same below), specifically triethylamine, the purpose of adding organic amine compound is to promote the formation of formate so that the reaction moves to the right . At the same time, 100 mg of NiB amorphous alloy was added as a catalyst. Mix the above systems into the reaction kettle, then empty and fill with gas. For specific implementation steps, please refer to the reaction implementation process.

[0057] Reaction temperature: The reaction temperature is stabilized at 40°C by the temperature control unit.

[0058] Total reaction pressure: 1MPa.

[0059] H in reaction 2 with CO 2 Scale: 0.2.

[0060] Reaction device and instructions for use:

[0061] Such as Figure 1~2 As shown, the reaction was carried out in a set of high-pressure catalytic reactor designed and built by ourselves. The reaction device is composed of a gas circuit control unit, a pressuri...

Embodiment 2

[0066] Reaction system: 10mL DMF was used as the reaction solvent, and 2.5mL TEA was added as the organic base. The purpose of adding the organic base was to promote the formation of formate so that the reaction shifted to the right. At the same time, 100 mg of NiB amorphous alloy was added as a catalyst. Mix the above systems into the reaction kettle, then empty and fill with gas. For specific implementation steps, please refer to the reaction implementation process.

[0067] Reaction temperature: The reaction temperature is stabilized at 40°C by the temperature control unit.

[0068] The total reaction pressures are: 0.1MPa, 1MPa, 3MPa, 5MPa, 7MPa, 9MPa.

[0069] H in reaction 2 with CO 2 Scale: 0.2.

[0070] Schematic diagram of the reaction device and instructions for use:

[0071] With embodiment 1.

[0072] The specific implementation process of the reaction:

[0073] With embodiment 1.

[0074] image 3 It is the activity diagram of the reaction hydrogenation ...

Embodiment 3

[0076] Reaction system: 10mL DMF was used as the reaction solvent, and 2.5mL TEA was added as the organic base. The purpose of adding the organic base was to promote the formation of formate so that the reaction shifted to the right. At the same time, 100 mg of NiB amorphous alloy was added as a catalyst. Mix the above systems into the reaction kettle, then empty and fill with gas. For specific implementation steps, please refer to the reaction implementation process.

[0077] Reaction temperature: The reaction temperature is stabilized at 40°C by the temperature control unit.

[0078] The total reaction pressure is: 9MPa.

[0079] H in reaction 2 with CO 2 The ratios are: 0.1, 0.2, 0.3.

[0080] Schematic diagram of the reaction device and instructions for use:

[0081] With embodiment 1.

[0082] The specific implementation process of the reaction:

[0083] With embodiment 1.

[0084] Figure 4 It is the reaction hydrogenation reaction product CH under different hy...

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Abstract

The invention relates to a process for supercritical CO2 hydrogenation based on amorphous alloy. The method comprises the following steps: mixing a solvent and organic amine in a reaction kettle to form a solution, selecting amorphous alloy as a catalyst, adding H2 and CO2 at a low temperature, heating the mixture until the partial pressure of CO2 reaches a supercritical state, and carrying out areaction in the state to obtain the products, formic acid and alkane compound. Compared with the prior art, the low hydrogen-carbon ratio and the low reaction temperature are different from those of atraditional CO2 hydrogenation catalytic reaction system, and more H2 energy consumption and temperature cost are saved.

Description

technical field [0001] The invention relates to the technical field of hydrogenation reaction, in particular to a method based on an amorphous alloy for supercritical CO 2 Hydrogenation process. Background technique [0002] The greenhouse effect has seriously affected the living environment of human beings, accompanied by a series of resource shortage problems. CO 2 As a kind of greenhouse gas, it not only causes many environmental problems such as glacier melting, sea level rise, and land desertification, but also, as the final oxidation product of carbon resources, its increase means the reduction of other carbon resources. At present, CO is converted into 2 Transformation into organic matter with relatively high added value and direct reduction into simple carbon-containing products have become CO 2 The scientific research direction used. while CO 2 Hydrogenation, as a research direction of green synthesis, has shown new vitality in recent years. [0003] During t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/00C07C53/02C07C1/12C07C9/04
CPCC07C1/12C07C51/00C07C53/02C07C9/04Y02P20/54
Inventor 李和兴朱建何结红秦联胜焦文琛陈伟
Owner SHANGHAI NORMAL UNIVERSITY
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