A kind of resource processing method of carbon dioxide and water highly selective synthesis of ethanol

A carbon dioxide and resource recovery technology, applied in chemical instruments and methods, preparation of organic compounds, preparation of hydroxyl compounds, etc., can solve problems such as low catalytic pathway and limited selectivity, and achieve improved conversion rate, reduced energy consumption, and improved operating conditions mild effect

Active Publication Date: 2020-05-05
NORTHWEST UNIV
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Problems solved by technology

However, the conversion of carbon dioxide by plasma alone has the problem that the conversion rate of reactants and the selectivity of target products are lower than those of catalytic pathways.
Guo Li et al [Feul,2015,158:843-847] used non-equilibrium negative ion technology to promote CO 2 React with water to obtain ethanol, but the selectivity of the reaction is limited, and a certain amount of methanol will be produced by-product in the reaction process

Method used

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  • A kind of resource processing method of carbon dioxide and water highly selective synthesis of ethanol
  • A kind of resource processing method of carbon dioxide and water highly selective synthesis of ethanol
  • A kind of resource processing method of carbon dioxide and water highly selective synthesis of ethanol

Examples

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Effect test

Embodiment 1

[0075] Weigh 0.5000 g of the copper-zinc-aluminum catalyst and fill it into a quartz tube reactor. before the reaction at N 2 (30mL / min) atmosphere, the temperature was raised to 300°C at a heating rate of 5°C / min, and stabilized for 10min. Access to H 2 (30mL / min) after reducing for 2h, under N 2 (30mL / min) the atmosphere was cooled down to 160°C. The reaction gas was introduced, the flow rate of carbon dioxide was 30mL / min, the mass content of water vapor was 63.12%, and the input power of the non-equilibrium negative corona plasma was 96W. After collecting the liquid phase products, the gas chromatography FID detector was used for detection and analysis.

Embodiment 2

[0077] The difference from Example 1 is that the input power of the unbalanced negative corona plasma is 192W.

Embodiment 3

[0079] The difference from Example 1 is that the input power of the unbalanced negative corona plasma is 288W.

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Abstract

A method of resourcefully processing carbon dioxide and water to synthesize ethanol with high selectivity. The copper-zinc-aluminum catalyst is placed in the reaction area of ​​the reaction device and then the copper-zinc-aluminum catalyst is reduced, and then in N 2 Under protection, the temperature of the reaction area is controlled to 160°C, and a mixed gas of carbon dioxide and water vapor is introduced into the reaction device under discharge conditions to react and obtain ethanol. In the present invention, electronegative gas molecules (carbon dioxide, water vapor, etc.) are excited to form negatively charged gas ions under discharge conditions, and the negatively charged gas ions react on the surface of an industrial copper-based catalyst to selectively generate ethanol. The invention can realize discharge reaction and catalytic reaction in the same area, thereby generating ethanol with high selectivity and no by-product methanol.

Description

technical field [0001] The invention relates to a method for generating ethanol by resource utilization of carbon dioxide with high selectivity, in particular to a method for resource process carbon dioxide and water to synthesize ethanol with high selectivity. Background technique [0002] CO 2 It is the main greenhouse gas, and its content in the air is about 0.03%. The problem of global warming caused by the greenhouse effect is one of the most serious problems faced by human beings. At the same time, carbon dioxide is the most abundant carbon source in the world, and the resource utilization of carbon dioxide is an effective way to solve the problems of greenhouse effect and energy crisis. [0003] At present, the resource utilization methods of carbon dioxide mainly include catalytic hydrogenation [Catal.Today.1996, 28:261-266, Appl.Catal. :37-48], electrochemical reduction method [Chemisty Select,2016,1(19):6055-6061], etc. Among them, the catalytic hydrogenation me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C29/159C07C31/08
CPCC07C29/159C07C31/08Y02P20/52
Inventor 赵彬然刘亚俊马晓迅陈占溥
Owner NORTHWEST UNIV
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