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Preparation process of copper-based catalyst

A copper-based catalyst and preparation technology, which is applied in the field of catalyst preparation, can solve the problems of heavy weight and unfavorable use of portable hydrogen production equipment, and achieve the effects of low cost, weight reduction and bulk density reduction

Inactive Publication Date: 2015-05-27
SHANGHAI MOCHUN POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The bulk density of copper-based catalysts currently on the market is greater than 1.20g / mm3, and the weight is large, which is not conducive to the use of portable hydrogen production equipment

Method used

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  • Preparation process of copper-based catalyst
  • Preparation process of copper-based catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] see figure 1 , the invention discloses a preparation process of a copper-based catalyst, the preparation process comprising the following steps:

[0075] [Step S1] Weighing raw materials; using an electronic balance to weigh a set amount of copper nitrate, zinc nitrate, aluminum nitrate, and zirconium nitrate;

[0076] [Step S2] put the weighed fine particle raw material into the reaction tank, the volume of the reaction tank is 50L;

[0077] [Step S3] Add deionized water into the reaction tank to dissolve the raw materials; set the rotation speed of the reaction tank to 450r / min, and the temperature to 60°C;

[0078] [step S3'] adding aluminum oxide as crystal nucleus and carrier;

[0079] [Step S4] Add sodium carbonate at a concentration of 0.1Mol / l to the reaction tank at 23ml / min; the stirring speed is 550r / min, and the temperature is set at a constant temperature of 60°C (other temperatures can also be used, such as 50-75°C);

[0080] [Step S5] Continue to stir ...

Embodiment 2

[0094] The invention discloses a preparation process of a copper-based catalyst. The catalyst is produced in a sealed continuous pipeline. zone, the second drying zone, and the second roasting zone.

[0095] Raw material comprises metal nitrate, precipitant solution; Metal nitrate comprises transition metal nitrate and rare earth metal nitrate; Transition metal nitrate comprises copper nitrate, zinc nitrate, aluminum nitrate, ferric nitrate (also can be copper nitrate, zinc nitrate, aluminum nitrate, zirconium nitrate), rare earth metal nitrates include one or more of lanthanum nitrate, zirconium nitrate; precipitant solution includes one or more of ammonia, sodium carbonate.

[0096] After the raw materials are dissolved, they are pumped into the pipeline through metering pumps, and successively pass through the above-mentioned precipitation area, aging area, washing area, drying area, roasting area, crushing area, granulation area, second drying area, and second roasting are...

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Abstract

The invention discloses a preparation process of a copper-based catalyst. Flour is added as a pore forming agent when raw materials are smashed, and then, granulation is carried out. The preparation process comprises the steps of weighing the raw materials; placing the weighed fine granulated raw materials into a reaction tank; adding water into the reaction tank to dissolve the raw materials; adding sodium carbonate into the reaction tank, and stirring; settling; standing; washing; carrying out vacuum filtration; drying the filtered sediment by using a drying oven; firing the dried solid substance by using a muffle furnace; adding graphite, pseudo-boehmite and the flour into the solid substance, and then, smashing by using a smasher; adding deionized water, and blending in a tray; prepressing the materials by using a prepress; granulating by using a granulator; drying the granules formed by using the granulator for the set time; forming by tabletting the dried granules by using a tablet press; and firing in the muffle furnace. By using the preparation process, the stacking density of the prepared granules can be reduced, the weight of the catalyst can be reduced, and the production cost of the catalyst can be lowered.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and relates to a catalyst preparation process, in particular to a copper-based catalyst preparation process. Background technique [0002] In recent years, with the development of proton exchange membrane fuel cells, especially their application in automobiles and distributed power generation, there is an urgent need for small, efficient, and decentralized mobile hydrogen production systems to supply raw hydrogen. As a result, various hydrogen production systems have emerged, as well as various hydrogen production methods. [0003] For example, Chinese patent CN202519022U discloses a methanol steam reforming hydrogen production equipment, which includes a liquid storage container, a heat exchanger, a gasification chamber, a reforming chamber, and a separation chamber. The equipment includes one or more heating units to control the temperature of the parts of the hydrogen production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J23/83
Inventor 向华钟才新
Owner SHANGHAI MOCHUN POWER TECH