Catalyst for water vapor reformation of ethanol to prepare hydrogen and its preparing method and use

A steam reforming and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of easy carbon deposition, reduced hydrogen selectivity, and adverse Problems such as the hydrogen production process, to achieve the effect of cheap price, simple and easy-to-operate preparation method, and cheap and easy-to-obtain raw material sources

Active Publication Date: 2007-06-27
YUNNAN ZHENGBANG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among copper-based catalysts, ZnO and SiO are mainly studied 2 、Cr 2 o 3 , Nb 2 o 5 Carrier supported copper catalyst, the catalyst has better activity at low temperature, but the hydrogen selectivity is low, it is easy to generate acetaldehyde, ethylene and other by-products, and it is easy to deposit carbon, so it is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023]A catalyst for hydrogen production by steam reforming of ethanol, which is loaded with Co on a composite carrier of aluminum oxide and magnesium oxide, and the mass percentage of aluminum oxide and magnesium oxide is 1%:99%. The mass percentage of the aluminum oxide and magnesium oxide composite carrier in the ethanol steam reforming hydrogen production catalyst is 5.0%.

Example Embodiment

[0024] Example 2

[0025] A catalyst for hydrogen production by steam reforming of ethanol, which is characterized in that Ni is loaded on a composite carrier of aluminum oxide and magnesium oxide, and the mass percentage of aluminum oxide and magnesium oxide is 99%:1%. The mass percentage of the aluminum oxide and magnesium oxide composite carrier in the hydrogen production catalyst for the steam reforming of ethanol is 95.0%.

Example Embodiment

[0026] Example 3

[0027] A catalyst for hydrogen production by steam reforming of ethanol, which is characterized in that Cu is carried on a composite carrier of aluminum oxide and magnesium oxide, and the mass percentage of aluminum oxide and magnesium oxide is 50%:50%, The mass percentage of the aluminum oxide and magnesium oxide composite carrier in the hydrogen production catalyst for the steam reforming of ethanol is 20.0%.

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PUM

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Abstract

The present invention discloses a kind of catalyst for water vapor reformation of ethanol to prepare hydrogen and its preparation process and use. The catalyst includes composite carrier of alumina and magnesia and at least one of carried transition metal, transition metal alloy, and transition metal-RE metal mixed oxide. The preparation process includes the following steps: preparing catalyst carrier, compounding water solution of nitrate, setting the carrier into the water solution of nitrate and adding urea via stirring, evaporating to eliminate water, stoving, grinding and roasting. The catalyst has low carrier cost and simple preparation process, is used in water vapor reformation of ethanol to prepare hydrogen, and can result in low reaction temperature, high hydrogen selectivity and no generation of side products ethylene, acetaldehyde, etc.

Description

technical field [0001] The invention relates to a catalyst, a preparation method and application, in particular to a catalyst for hydrogen production, a preparation method and the use of the catalyst for hydrogen production by steam reforming of ethanol, which belongs to the fuel cell hydrogen source technology. Background technique [0002] In the past 20 to 30 years, in order to solve the problem of sustainable development of energy and environment, coupled with the depletion of fossil fuels, the development and utilization of clean renewable energy has attracted much attention. As a clean energy, hydrogen is attracting more and more attention. [0003] Hydrogen is an efficient, clean and renewable energy, which will play a significant role in the sustainable development of the global energy system and will have a huge impact on the global ecological environment. Hydrogen itself is renewable and when burned produces only water and no pollutants, not even CO 2 , can achie...

Claims

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Application Information

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IPC IPC(8): B01J23/75B01J23/755B01J23/72B01J23/80B01J23/83B01J21/10B01J21/04C01B3/32
Inventor 张金利张利峰李王一平
Owner YUNNAN ZHENGBANG SCI & TECH
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