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Reduction method for copper-radic catalyst for reforming methanol vapour to produce hydrogen

A copper-based catalyst, reforming hydrogen production technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the complex process and increase equipment investment. and other problems, to achieve the effect of uniform restoration, easy temperature control and investment saving.

Inactive Publication Date: 2006-10-25
HAO HUA CHENGDU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, roots blowers are usually used in industrial devices to circulate the dilution gas, which increases the investment in the device and makes the entire process complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 60ml methanol steam reforming hydrogen production catalyst to the gas phase reactor, the weight percentage of copper oxide in the catalyst is 65%, the vaporization part of the device, the reaction part heats up simultaneously, the temperature rise rate is 20 ℃ / h, simultaneously with the gas space velocity 1000h -1 Air is introduced, and when the temperature rises to 110°C, the air is stopped. Then use a metering pump at an air speed of 1200h -1 Pass into deionized water, and pass through to account for the volume percentage of both to be 0.5% of H 2 (ie 0.37L / h), the heating rate is 10°C / h. Stop feeding H when the temperature rises to 200°C 2 and water, and use a metering pump at the liquid space velocity for 1h -1 Pass in 0.5% methanol aqueous solution, continue to heat up, the temperature rise rate is 10°C / h, stop the temperature rise when the temperature rises to 230°C, continue to use the liquid space velocity for 1h -1 Introduce 1% methanol aqueous solutio...

Embodiment 2

[0024] Add 60ml methanol steam reforming hydrogen production catalyst to the gas phase reactor, the weight percentage of copper oxide in the catalyst is 55%, the vaporization part of the device, the reaction part is heated up at the same time, the temperature rise rate is 20 ℃ / h, and the air space velocity is 1500h at the same time -1 Air is introduced, and when the temperature rises to 120°C, the air is stopped. Then use a metering pump at an air-space velocity of 1500h -1 Pass into deionized water, and pass through to account for the volume percentage of both to be 1% H 2 , the heating rate is 10°C / h. Stop feeding H when the temperature rises to 160°C 2 and water, and use a metering pump at a liquid space velocity of 1.2h -1 Pass in 1% methanol aqueous solution, continue to heat up, the temperature rise rate is 10°C / h, stop the temperature rise when the temperature rises to 220°C, and continue to use the liquid space velocity for 1.2h -1 A 2% aqueous methanol solution ...

Embodiment 3

[0027] Add 60ml methanol steam reforming hydrogen production catalyst in the gas phase reactor, the weight percentage of copper oxide in the catalyst is 60%, the vaporization part of the device, the reaction part heats up simultaneously, the temperature rise rate is 20 ℃ / h, simultaneously with the gas space velocity 1000h -1 Air is fed in, and when the temperature rises to 120°C, the air is stopped; this step can also be fed inert gas, such as helium, neon or argon, etc. Then use a metering pump at an air-space velocity of 1000h -1 Pass into deionized water, and pass through to account for the volume percentage of both to be 0.5% of H 2 , the heating rate is 10°C / h. Stop feeding H when the temperature rises to 180°C 2 and water, and use a metering pump at a liquid space velocity of 0.8h -1 Pass in 0.5% methanol aqueous solution, continue to heat up at a rate of 10°C / h, stop heating when the temperature rises to 230°C, and continue at a liquid space velocity of 0.8h -1 A 1...

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PUM

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Abstract

The present invention discloses a reduction method of catalyst for reforming hydrogen production by using methyl alcohol aqueous vapour. Said method includes the following several stages: a, dehydration stage of catalyst; b, initiation stage of catalyst reduction; and c, reduction stage of catalyst. Said invention also provides the concrete steps of the above-mentioned every stage and its concrete requirements.

Description

technical field [0001] The invention relates to a method for reducing a catalyst for hydrogen production by steam reforming of methanol, in particular to a method for reducing a copper-based catalyst. Background technique [0002] Hydrogen has a very important position in the 21st century. China's demand for hydrogen energy will be mainly reflected in the following aspects: the demand for cheap hydrogen sources for the hydrofinishing of refined oil in refineries; the demand for hydrogen energy systems for proton exchange membrane fuel cell electric vehicles Demand for hydrogen energy systems for high-power power generation of proton exchange membrane fuel cells; demand for decentralized on-site hydrogen production in hydrogen refueling stations or residential quarters; demand for fine chemicals, aerospace and other industries. [0003] Methanol is easy to store and transport, and has high energy conversion efficiency. The reaction products of steam reforming of methanol are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/94B01J23/80B01J23/835C01B3/32
CPCY02P20/584
Inventor 张晓阳胡志彪黄宏李倩刘京林
Owner HAO HUA CHENGDU TECH
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