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Ruthenium catalyst for propane catalytic combustion and preparation method of ruthenium catalyst

A ruthenium catalyst and catalytic combustion technology, which is applied in the field of environmental pollution control, can solve the problems that cannot meet the requirements of low-temperature activation and conversion of propane, and achieve the effect of simple preparation method and high activity

Inactive Publication Date: 2019-04-26
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two noble metals have good propane adsorption and activation capabilities, the complete conversion temperature of propane is usually higher than 300 °C under laboratory conditions, and the existing catalysts cannot meet the requirements of low-temperature activation and conversion of propane.

Method used

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  • Ruthenium catalyst for propane catalytic combustion and preparation method of ruthenium catalyst
  • Ruthenium catalyst for propane catalytic combustion and preparation method of ruthenium catalyst
  • Ruthenium catalyst for propane catalytic combustion and preparation method of ruthenium catalyst

Examples

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Effect test

Embodiment 1

[0021] A ruthenium catalyst for propane catalytic combustion and a preparation method thereof, comprising the following steps:

[0022] 1.736 g Ce(NO 3 ) 3 ·6H 2 O and 19.2 g NaOH were dissolved in 10 mL and 70 mL deionized water, respectively. After the two are fully dissolved, mix and stir for 30 min. Then the mixed solution was transferred to a 100ml crystallization kettle, and placed at 100° C. for crystallization for 24 hours to obtain a cerium oxide nanorod precursor. Then the solid product was washed several times by centrifugation with deionized water and ethanol, and dried in an oven at 80°C for 8 hours, and finally calcined at 400°C for 4 hours to obtain nanorod-shaped cerium oxide support, marked as CeO 2 -1.

[0023] 1 g CeO 2 -1 powder, 50 ml deionized water and 0.6 g of RuCl 3 (0.86%) aqueous solutions were mixed in a three-necked flask, and continued to stir at room temperature for 15 min to make them fully mixed. Then, under constant stirring at room te...

Embodiment 2

[0026] A ruthenium catalyst for propane catalytic combustion and a preparation method thereof, comprising the following steps:

[0027] 1.736 g Ce(NO 3 ) 3 ·6H 2 O and 19.2 g NaOH were dissolved in 10 mL and 70 mL deionized water, respectively. After the two are fully dissolved, mix and stir for 30 min. Then the mixed solution was transferred to a 100ml crystallization kettle, and placed at 100° C. for crystallization for 24 hours to obtain a cerium oxide nanorod precursor. Then the solid product was washed several times by centrifugation with deionized water and ethanol, and dried in an oven at 80°C for 8h, and finally calcined at 400°C for 4h to obtain nanorod-shaped cerium oxide support, marked as CeO 2 -1.

[0028] 1 g CeO 2 -1 powder, 50 ml deionized water and 1.2 g of RuCl 3 (0.86%) aqueous solutions were mixed in a three-necked flask, and continued to stir at room temperature for 15 min to make them fully mixed. Then, under constant stirring at room temperature,...

Embodiment 3

[0031] A ruthenium catalyst for propane catalytic combustion and a preparation method thereof, comprising the following steps:

[0032] 1.736 g Ce(NO 3 ) 3 ·6H 2O and 19.2 g NaOH were dissolved in 10 mL and 70 mL deionized water, respectively. After the two are fully dissolved, mix and stir for 30 min. Then the mixed solution was transferred to a 100ml crystallization kettle, and placed at 100° C. for crystallization for 24 hours to obtain a cerium oxide nanorod precursor. Then the solid product was washed several times by centrifugation with deionized water and ethanol, and dried in an oven at 80°C for 8 hours, and finally calcined at 400°C for 4 hours to obtain nanorod-shaped cerium oxide support, marked as CeO 2 -1.

[0033] 1 g CeO 2 -1 powder, 50 ml deionized water and 2.4 g of RuCl 3 (0.86%) aqueous solutions were mixed in a three-necked flask, and continued to stir at room temperature for 15 min to make them fully mixed. Then, under constant stirring at room tem...

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Abstract

The invention relates to a ruthenium catalyst for propane catalytic combustion and a preparation method of the ruthenium catalyst. According to the catalyst, rod-like cerium oxide serves as a carrierand noble metal ruthenium serves as an active component. The ruthenium catalyst for propane catalytic combustion is characterized in that the catalyst can completely catalyze and oxidize propane intoH2O and CO2 at the temperature of 150 to 240 DEG C; no other byproducts are generated; furthermore, the catalyst is not deactivated when the reaction is continuously conducted at the temperature of 190 DEG C for 60 hours. The catalyst provided by the invention has the advantages of simple preparation method, high activity, no byproduct, high stability and the like.

Description

technical field [0001] The invention relates to a preparation method and application of a ruthenium catalyst used for catalytic combustion of propane and belongs to the field of environmental pollution control. Background technique [0002] As liquefied petroleum gas is widely used in industrial production and daily life as fuel, the emission of low-carbon alkanes such as propane and butane is also increasing, which poses an increasingly serious threat to human health and the environment. Therefore, how to control and eliminate low-carbon alkanes Carbon alkane emissions have also become one of the hotspots in the field of environmental research. The catalytic combustion method has the advantages of high purification efficiency, wide concentration of exhaust gas, and no secondary pollution. It is one of the most effective methods to control and eliminate low-carbon alkanes emissions. The core is to design and prepare high-performance catalysts. [0003] In the catalytic comb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63F23G7/07
CPCF23G7/07B01J23/63F23G2209/14B01J35/23
Inventor 詹望成王征闵祚钰郭杨龙郭耘王丽王筠松
Owner EAST CHINA UNIV OF SCI & TECH
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