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Method for converting CO2 to methyl alcohol under synergistic action of ultraviolet light/coal

A technology of synergy and ultraviolet light, which is applied in the direction of chemical instruments and methods, separation methods, carbon dioxide reduction method preparation, etc., can solve the problem of conversion to methanol and other problems that have not been found, to increase the specific surface area, prevent spontaneous combustion or oxidation, and increase the reaction rate Effect

Active Publication Date: 2014-07-02
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Up to now, no information about CO under the UV / coal synergy 2 The method of converting to methanol has been reported

Method used

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  • Method for converting CO2 to methyl alcohol under synergistic action of ultraviolet light/coal
  • Method for converting CO2 to methyl alcohol under synergistic action of ultraviolet light/coal
  • Method for converting CO2 to methyl alcohol under synergistic action of ultraviolet light/coal

Examples

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Embodiment 1

[0049] CO under the ultraviolet light / coal synergy of the present embodiment 2 The method of conversion to methanol comprises the following steps:

[0050] Step 1. Put the coal into a disc pulverizer for pulverization, pass through a 200-mesh sieve, place it in a vacuum drying oven, and vacuum-dry it at a temperature of 100°C and a vacuum of -0.085MPa until the quality of water in the coal is 100%. content of 0.8%, to obtain coal powder;

[0051] Step 2, add Na in reaction bottle 2 that is filled with deionized water 2 SO 3 and NaOH, mixed solution 250mL; Na in the mixed solution 2 SO 3 The concentrations of NaOH and NaOH are both 0.1mol / L;

[0052] Step 3. Ultrasonic disperse the coal powder described in step 1 in the mixed solution described in step 2. The temperature of ultrasonic dispersion is 30°C, the power of ultrasonic dispersion is 200W, and the time of ultrasonic dispersion is 10 minutes to obtain a suspension ; The quality of adding coal powder in each liter o...

Embodiment 2

[0058] CO under the ultraviolet light / coal synergy of the present embodiment 2 The method for converting to methanol is the same as that in Example 1, except that the amount of coal powder added to each liter of the mixed solution in step 3 is 2 g.

Embodiment 3

[0060] CO under the ultraviolet light / coal synergy of the present embodiment 2 The method for converting to methanol is the same as in Example 1, except that the amount of coal powder added to each liter of the mixed solution in step 3 is 3 g.

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Abstract

The invention provides a method for converting CO2 to methyl alcohol under a synergistic action of ultraviolet light / coal. The method includes the following steps that (1) coal is sequentially subjected to smashing, sieving and drying process to obtain a coal powder; (2) a mixed solution of Na2SO3 and NaOH is prepared; (3) the coal powder is subjected to ultrasonic dispersion in the mixed solution to obtain a suspension; and (4) CO2 is fed into a reaction flask to obtain a mixture, the mixture is stirred and subjected to ultraviolet irradiation, and CO2 is converted to the methyl alcohol under the synergistic action of ultraviolet light and coal. The invention relates to a novel process of greenhouse gas resource utilization and clean coal utilization, the novel process is a novel method for converting CO2 to methyl alcohol under the synergistic action of ultraviolet light and coal, and the method has a wide development and application prospect in aspects of CO2 efficient conversion, clean coal utilization and the like.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of greenhouse gases, and in particular relates to a CO 2 method of conversion to methanol. Background technique [0002] The enhancement of the greenhouse effect has caused serious harm to the living environment of human beings, which has attracted great attention worldwide. The main greenhouse gases in the atmosphere are carbon dioxide, methane, nitrous oxide, etc., among which carbon dioxide is the main gas that causes the greenhouse effect. Due to the extensive use of fossil fuels such as coal, oil, and natural gas, global carbon dioxide is increasing by about 6 billion tons per year. Energy experts predict that global carbon dioxide emissions may exceed 38 billion tons by 2030, and the resulting greenhouse effect will seriously threaten human existence. [0003] However, carbon dioxide is a very precious resource in the chemical industry, and the current global utilization of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/62C07C31/04C07C29/15
CPCY02P20/50
Inventor 张亚婷周安宁魏建国杨瑞刘国阳蔡江涛邱介山
Owner XIAN UNIV OF SCI & TECH