Integral catalyst for preparation hydrogen by methyl alcohot reformation and its preparation method

A monolithic catalyst, reforming hydrogen production technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. Wastewater, uneconomical problems, etc., to achieve good low-temperature activity, energy saving, and fast dynamic response

Active Publication Date: 2005-03-23
上海舜华新能源系统有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current catalysts for methanol reforming or oxidative reforming are basically prepared by co-precipitation method. This preparation method has high requirements on the control of the pH value of the precipitation, and the washing of the precipitation solution consumes a large amount of water, and at the same time A large amount of waste water is produced, which is neither economical nor environmentally friendly. More importantly, this preparation method is difficult to make a monolithic catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take a size of Φ19×30, the number of holes is 47 holes / cm 2 The cylindrical cordierite ceramic honeycomb carrier was washed with deionized water and dehydrated, dried at 120°C for 4 hours in a flowing air atmosphere, calcined at 500°C for 2 hours, and naturally cooled to room temperature .

[0025] After the pretreated carrier is degassed and vacuumized, it is immersed in an alumina slurry with a solid content of 25% that has been added with lanthanum, cerium and titanium. The weight percentage of each component in the slurry is composed of )as follows:

[0026] γ-Al 2 o 3 88%

[0027] La 2 o 3 (add after dissolving lanthanum nitrate in water) 5%

[0028] CeO 2 (add after dissolving cerium nitrate in water) 5%

[0029] TiO 2 (added with metatitanic acid) 2%

[0030] After dipping for 10 minutes, remove the residual slurry in the carrier channel, dry naturally for 6 hours, dry for 6 hours at 80°C in a flowing air atmosphere,...

Embodiment 2

[0040] The monolithic catalyst for methanol oxidative reforming adopts the same preparation method as in Example 1, but the content of zirconia in the active coating is doubled, that is, 6%, γ-Al 2 o 3 The content of is reduced to 69%, while the content of other components remains unchanged.

Embodiment 3

[0042] The methanol oxidative reforming monolithic catalyst adopts the same preparation method as in Example 1, but the content of zirconia in the active coating is zero, CeO 2 The content of the content is 6%, while the content of other components remains unchanged.

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PUM

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Abstract

An integrated catalyst for preparing H2 from methanol by reformation is composed of cellular ceramic carrier, the internal coated layer, and the external coated active component and cocatalyst coating. It features that its heat absorbing reaction and heat releasing reaction take place on a same catalyst bed layer, resulting in high dynamic response.

Description

technical field [0001] The invention relates to a methanol reforming catalyst for hydrogen production and a preparation method thereof, in particular to a copper-zinc-based multi-component catalyst for methanol reforming hydrogen production and a preparation method thereof. Background technique [0002] In recent years, with the increasing maturity of fuel cell technology and its significance to environmental protection, fuel cell vehicles using fuel cell technology have developed rapidly, and methanol vehicle-mounted hydrogen production has become one of the more ideal hydrogen supply solutions. [0003] Hydrogen production by steam reforming of methanol has been widely used in the hydrogen production industry because of its high hydrogen production rate and mature production process. However, the steam reforming of methanol is an endothermic reaction, which requires a large amount of external heat. Heat generation and heat exchange devices limit the miniaturization of hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80C01B3/40H01M4/90H01M8/22
CPCY02E60/50Y02P20/52Y02P70/50
Inventor 马建新周伟潘相敏邬敏忠
Owner 上海舜华新能源系统有限公司
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