Catalyst for high-temperature water gas conversion reaction and manufacturing method thereof

A catalyst, high-temperature water technology, applied in chemical instruments and methods, catalytic treatment of combustible gases, catalysts for physical/chemical processes, etc., can solve the problem of high price of precious metals, and achieve high oxidation reaction efficiency, economy and practicability. Effect

Inactive Publication Date: 2018-09-04
深圳市国能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, catalysts containing noble metals have been reported to be highly active as catalysts for the water gas shift reaction, but the price of noble metals is too high, so it is necessary to develop catalysts that do not contain noble metals and have high activity.

Method used

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  • Catalyst for high-temperature water gas conversion reaction and manufacturing method thereof
  • Catalyst for high-temperature water gas conversion reaction and manufacturing method thereof
  • Catalyst for high-temperature water gas conversion reaction and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A catalyst for high-temperature water-gas shift reaction is composed of the following raw materials in weight percentage: 96% iron, 3% nickel, and 1% zinc.

[0028] The preparation method of the catalyst for the high-temperature water-gas shift reaction, the specific steps are as follows:

[0029] (1) Take iron precursor, nickel precursor and zinc precursor respectively as raw materials, calculate the amount of the above-mentioned precursor according to the scope of the weight percentage of the metal content and take the precursor of the required amount for subsequent use;

[0030] (2) Add the iron precursor to 180mL of distilled water, mix and stir with a magnetic stirrer, add the nickel precursor and zinc precursor and then stir;

[0031] (3) Stir the above aqueous solution for 1 h, adjust its pH value to 2.5, add 90 mL of distilled water and 9 g of sodium carbonate mixture, and dry at 65 ° C for 0.8 h;

[0032] (4) Adjust the pH value of the above-mentioned dried pr...

Embodiment 2

[0035] A catalyst for high-temperature water-gas shift reaction, which is composed of the following raw materials according to weight percentage: 88% iron, 10% cobalt, and 2% zinc.

[0036] The preparation method of the catalyst for the high-temperature water-gas shift reaction, the specific steps are as follows:

[0037] (1) Take iron precursor, cobalt precursor and zinc precursor respectively as raw materials, calculate the amount of the above precursor according to the scope of the weight percentage of the metal content and take the required amount of precursor for subsequent use;

[0038] (2) Add the iron precursor to 200mL of distilled water, mix and stir with a magnetic stirrer, add the cobalt precursor and zinc precursor and then stir;

[0039] (3) Stir the above aqueous solution for 1.1 h, adjust its pH to 2.75, add 100 mL of distilled water and 10 g of sodium carbonate mixture, and dry at 70°C for 1 h;

[0040] (4) Adjust the pH value of the above-mentioned dried pro...

Embodiment 3

[0043] A catalyst for high-temperature water-gas shift reaction is composed of the following raw materials according to weight percentage: 82% iron, 15% nickel and 3% cobalt.

[0044] The preparation method of the catalyst for the high-temperature water-gas shift reaction, the specific steps are as follows:

[0045] (1) Take iron precursor, nickel precursor and cobalt precursor respectively as raw materials, calculate the amount of the above-mentioned precursor according to the scope of the weight percentage of the metal content and take the required amount of precursor for subsequent use;

[0046] (2) Add the iron precursor to 220mL of distilled water, mix and stir with a magnetic stirrer, add the nickel precursor and cobalt precursor and then stir;

[0047] (3) Stir the above aqueous solution for 1.2h, adjust its pH value to 3, add 110mL of distilled water and 11g of sodium carbonate mixture, and dry at 75°C for 1.2h;

[0048] (4) Adjust the pH value of the above dried prod...

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PUM

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Abstract

The invention discloses a catalyst for high-temperature water gas conversion reaction. The catalyst is prepared from iron and two ingredients selected from nickel, cobalt and zinc. During the preparation, iron precursors are added into distilled water; stirring is performed through a magnetic stirring machine; two ingredients are selected from nickel precursors, cobalt precursors and zinc precursors; then, stirring is performed; a distilled water and sodium carbonate mixed solution are added; then, drying is performed; a distilled water and sodium hydroxide mixed solution is added; washing isperformed; solid obtained after the washing is dried; pyrolysis treatment is performed. The catalyst belongs to a chromium-free three-ingredient series composite catalyst containing iron and two ingredients selected from nickel, cobalt and zinc, and is applied to high-temperature water gas conversion reaction. Compared with the iron- chromium series catalyst, the catalyst has the advantages that the oxidization reaction efficiency of carbonic oxide is high; non-noble metal is used for replacing high-price noble metal, so that the economic performance and the practicability are higher.

Description

technical field [0001] The invention relates to a catalyst, in particular to a catalyst for high-temperature water-gas shift reaction and a manufacturing method thereof. Background technique [0002] Recently, many researchers and futurists believe that the alternative energy source for the energy depletion problem is hydrogen. At present, many researchers are conducting research on hydrogen. Generally speaking, hydrogen production projects are fuel reformation, high-temperature water-gas shift reaction, low-temperature water-gas shift reaction, and are formed by selective oxidation of carbon monoxide. [0003] Although pure hydrogen is the ideal energy source for next-generation energy systems, it is very difficult to use due to safety and storage issues. Therefore, research is actively being conducted to reform natural gas such as gasoline or alcohol to produce and utilize hydrogen fuel. By reforming hydrogen, not only is hydrogen gas needed, but carbon monoxide is produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755B01J23/80C01B3/40C10K3/04C01B3/16
CPCB01J23/755B01J23/80C01B3/16C01B3/40C10K3/04Y02P20/52
Inventor 吴斌王丽丽
Owner 深圳市国能环保科技有限公司
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