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High-hydrocarbon liquid fuel reforming hydrogen production catalyst as well as preparation method and application thereof

A liquid fuel, reforming hydrogen production technology, applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of easy carbonization, activity and high temperature resistance , easy sulfur poisoning and other problems, to achieve the effect of rapid reaction, inhibition of carbon sintering phenomenon, and high degree of dispersion

Pending Publication Date: 2022-06-03
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that existing diesel steam reforming catalysts are prone to carbon formation, sulfur poisoning, and insufficient activity and high temperature resistance, the present invention provides a hydrogen production catalyst for reforming high-carbon hydrocarbon liquid fuels, which is a catalyst containing lanthanum, cobalt, and iron The double perovskite type catalyst of the element, the structure formula of the double perovskite type catalyst is La 2 co x Fe 2-x o 5+ξ , where, 0.5≤x≤1.5, 0.01≤ξ≤1

Method used

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  • High-hydrocarbon liquid fuel reforming hydrogen production catalyst as well as preparation method and application thereof
  • High-hydrocarbon liquid fuel reforming hydrogen production catalyst as well as preparation method and application thereof
  • High-hydrocarbon liquid fuel reforming hydrogen production catalyst as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] B1. On a molar basis, dissolve 2 parts of lanthanum nitrate, 0.5 part of cobalt nitrate and 1.5 parts of ferric nitrate in distilled water in sequence under magnetic stirring until the mixture is uniform to form a clear and transparent solution.

[0047] B2. Add 1 part of acetylacetone and 2 parts of acetic acid to 1 part of hexamethylenetetramine in turn under the condition of oil bath heating, and after stirring, obtain a light yellow viscous liquid, and configure to obtain a complexing agent.

[0048] B3. Add 1 part of the prepared complexing agent to 1 part of the clear and transparent solution obtained from B1 and heat it in an oil bath, the heating temperature is 80°C, the heating time of the oil bath heating is 2h, and the preparation is carried out under magnetic stirring into a gel.

[0049] B4. Place the above gel in an oven to dry, the drying temperature is 180°C, and the drying time is 3h;

[0050] B5. Grind the dried gel into powder, calcined at 1000°C, th...

Embodiment 2

[0054] C1. On a molar basis, 2 parts of lanthanum nitrate, 1 part of cobalt nitrate and 1 part of ferric nitrate are sequentially dissolved in distilled water under the condition of magnetic stirring until the mixture is uniform to form a clear and transparent solution.

[0055] C2. Add 2 parts of acetylacetone and 5 parts of acetic acid to 2 parts of hexamethylenetetramine successively under the condition of oil bath heating, and after stirring, obtain a light yellow viscous liquid, and configure to obtain a complexing agent.

[0056] C3. Add 1 part of the prepared complexing agent to 1 part of the clear and transparent solution obtained from C1 and heat it in an oil bath, the heating temperature is 80°C, the heating time of the oil bath heating is 1h, and the preparation is carried out under magnetic stirring into a gel.

[0057] C4. Place the above gel in an oven to dry, the drying temperature is 180°C, and the drying time is 3h;

[0058] C5. Grind the dried gel into powde...

Embodiment 3

[0062] The molar ratio of lanthanum nitrate, cobalt nitrate and iron nitrate is 2:1.5:0.5,

[0063] D1. Dissolve 2 parts of lanthanum nitrate, 1.5 parts of cobalt nitrate and 0.5 part of ferric nitrate in distilled water successively under the condition of magnetic stirring on a molar basis until the mixture is uniform to form a clear and transparent solution.

[0064] D2. Add 1 part of 2,2-diethoxyacetophenone and 2 parts of acetic acid to 1 part of hexamethylenetetramine in turn under the condition of heating in an oil bath, stir to obtain a light yellow viscous liquid, and configure to obtain a complex mixture.

[0065] D3. Add 1 part of the prepared complexing agent to 1 part of the clear and transparent solution obtained in D1 and heat it in an oil bath, the heating temperature is 80°C, the heating time of the oil bath heating is 2h, and the preparation is carried out under magnetic stirring into a gel.

[0066] D4. Place the above gel in an oven to dry, the drying temp...

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Abstract

The invention relates to the field of hydrogen production through diesel oil reforming, in particular to a catalyst for hydrogen production through high-hydrocarbon liquid fuel reforming as well as a preparation method and application of the catalyst. Wherein the structural formula of the catalyst for hydrogen production by reforming of the high-carbon hydrocarbon liquid fuel is La2CoxFe2-xO5 + xi, x is more than or equal to 0.5 and less than or equal to 1.5, and xi is more than or equal to 0.01 and less than or equal to 1. The high-carbon hydrocarbon liquid fuel reforming hydrogen production catalyst provided by the invention is a double-calcium titanium type catalyst, and the preparation method is simple, efficient and high in yield; the catalyst is calcined at high temperature in the production process, is uniform in phase and high in dispersity, has excellent catalytic activity, sulfur resistance and thermal stability, can effectively inhibit surface carbon deposition on the surface of the catalyst, and shows excellent activity and stability in water vapor reforming hydrogen production of long-chain alkane.

Description

technical field [0001] The invention relates to the field of hydrogen production by diesel reforming, in particular to a high-carbon hydrocarbon liquid fuel reforming hydrogen production catalyst and a preparation method and application thereof. Background technique [0002] Combustion of fossil fuels is the source of electricity production for transportation and power applications in my country. There is a large amount of heat and friction loss in the conversion process, the combustion efficiency is low, and a large amount of pollutants are also generated. The development of fuel cell technology is expected to make efficient use of fossil fuel resources. As the only fuel or energy carrier that does not contain carbon, hydrogen fuel only generates water after combustion, with no pollutant emissions and high combustion efficiency. However, the main source of hydrogen is still natural gas reforming. This method requires high technology, and natural gas is not easy to compress...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J37/03B01J37/08B01J37/18C01B3/40
CPCB01J23/83B01J23/002B01J37/036B01J37/082B01J37/18C01B3/40B01J2523/00C01B2203/0233C01B2203/1052B01J35/23B01J2523/3706B01J2523/842B01J2523/845Y02P20/52
Inventor 刘运权罗虹键李妍李涛
Owner XIAMEN UNIV
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