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Method for preparing hydrogen by alcohol

A hydrogen and air technology, applied in hydrogen production, carboxylate preparation, organic chemistry, etc., can solve the problems of increasing the cost of hydrogen production, and achieve the effect of mild conditions and cost reduction

Inactive Publication Date: 2015-01-07
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The noble metal catalyst used in the process will significantly increase the cost of hydrogen production, on the other hand, a small amount of CO will be produced

Method used

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  • Method for preparing hydrogen by alcohol
  • Method for preparing hydrogen by alcohol
  • Method for preparing hydrogen by alcohol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 10 parts of absolute ethanol and 1 part of sodium hydroxide solid in the reaction kettle, evacuate the air in the kettle with nitrogen, heat up to 220° C. in airtight conditions, and keep for 2 hours. Cool to room temperature and collect the gas.

[0035] The gas product prepared in this example was analyzed by gas chromatography, and the results are shown in Example 1 in Table 1. figure 1 Gas chromatograms of the gaseous products prepared for this example.

Embodiment 2

[0037] Weigh 10 parts of absolute ethanol and 1 part of sodium hydroxide solid in the reaction kettle, evacuate the air in the kettle with nitrogen, heat up to 240° C. in airtight conditions, and keep for 2 hours. Cool to room temperature and collect the gas. The gas product prepared in this example was analyzed by gas chromatography, and the results are shown in Example 2 in Table 1.

Embodiment 3

[0039]Weigh 10 parts of 20% ethanol with water and 1 part of sodium hydroxide solid into the reaction kettle, empty the air in the kettle with nitrogen, heat up to 240° C. in airtight conditions, and keep for 2 hours. The gas was collected after cooling to room temperature. The gas product prepared in this example was analyzed by gas chromatography, and the results are shown in Example 3 in Table 1.

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Abstract

The invention provides a method for preparing hydrogen by alcohol, which comprises the steps of: mixing the alcohol with alkali under the temperature of 100-400 DEG C, and reacting the alcohol with the alkali to obtain the hydrogen in reaction products. According to the preparation method provided by the invention, the gaseous product does not contain by-products such as CO and CO2, and impurity removal operation is not needed to be carried out on the products again, so that the cost is reduced. In addition, the preparation method provided by the invention is milder in condition, and can be used for preparing the hydrogen without needing noble metal catalyst, so that the cost is remarkably reduced.

Description

technical field [0001] The invention relates to the field of organic synthesis reactions, in particular to a method for producing hydrogen from alcohol. Background technique [0002] Energy is an important material basis for human survival and development. The oil, natural gas, and coal that people mainly use at present are all non-renewable fossil energy. Due to the unlimited exploitation of human beings, fossil energy has gradually become exhausted. On the other hand, the unrestricted use of these fuels also brings serious environmental problems, such as acid rain, greenhouse effect and so on. Therefore, finding new renewable clean energy is an urgent problem facing mankind. [0003] As an ideal energy carrier that can be obtained from various sources, hydrogen will bring new changes to the clean utilization of energy. Compared with conventional fuels, hydrogen, as a clean and pollution-free renewable energy, has always been an ideal substitute for petroleum in people's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C01B3/02C07C53/10C07C53/06C07C53/124C07C55/22C07C61/08
Inventor 张颖卫新来曲艳超傅尧郭庆祥
Owner UNIV OF SCI & TECH OF CHINA