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Carbon monoxide low-temperature oxidation catalyst

An oxidation catalyst, carbon monoxide technology, applied in the field of carbon monoxide low-temperature oxidation catalyst, can solve the problems of low adsorption rate, difficult implementation, large equipment volume, etc., and achieve good oxidation catalytic effect

Inactive Publication Date: 2015-12-30
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low adsorption rate of the adsorption material during physical elimination, the volume of the equipment is large, which is limited by the application
Catalytic reduction is the use of H 2 and other reducing gases react with CO to produce valuable CH 4 or CH 3 OH, it is the best method in theory, but it is difficult to implement under the current technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Prepare according to stoichiometric ratio, weigh 1.582g lanthanum nitrate, 1.412g praseodymium nitrate hexahydrate, 1.888g nickel nitrate hexahydrate, 0.4724g cobalt nitrate hexahydrate and 20 milliliters of deionized water to form a mixed aqueous solution.

[0020] (2) Using n-butylamine as a template, add a corresponding amount of 3g template to the solution obtained in step (1), and stir to fully mix and dissolve the raw material and the template.

[0021] (3) Using ammonia water as the precipitating agent, adding the precipitating agent to the solution obtained in step (2) under the condition of stirring, and controlling the pH=11-12.

[0022] (4) Put the solution obtained in step (3) into a hydrothermal kettle and react in an oven at 120°C for 5 hours, then filter the co-precipitate and wash it repeatedly, filter it to neutral, and dry it in an oven at 120°C for 4 hours , grind the co-precipitate into uniform fine particles and place it in a 750°C muffle furnac...

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Abstract

The invention relates to a carbon monoxide low-temperature oxidation catalyst, which belongs to the field of oxidation catalysts. The carbon monoxide low-temperature oxidation catalyst is characterized in that the chemical formula of the catalyst is La1-XPrXNi1-yCoyO3, wherein x is from 0.35 to 0.50, and y is from 0.28 to 0.36. The carbon monoxide low-temperature oxidation catalyst is prepared by adopting a hydrothermal-coprecipitation method and has the advantages of reducing the carbon monoxide oxidation temperature and realizing low-temperature oxidation. Additionally, in low-temperature oxidation reaction of carbon monoxide, the conversion rate of carbon monoxide is 98.7% at 83 DEG C, the conversion rate of the carbon monoxide is 96.5% after reaction for 200 h due to the catalyst, and good catalytic oxidation is realized in low-temperature oxidation of carbon monoxide.

Description

technical field [0001] The invention relates to a catalyst, in particular to a low-temperature oxidation catalyst for carbon monoxide. Background technique [0002] Sustainable development has now become the consensus of human society and the direction of social development in the 21st century, but environmental pollution is an important issue that human society faces in sustainable development. Acid rain, water pollution, greenhouse effect, ozone hole and other issues have become environmental issues of global concern. With the great development of modern industry in the 20th century, the continuous increase of modern industrial enterprises such as thermal power plants and petrochemical enterprises has greatly promoted social development, but also caused a sharp increase in energy consumption, and produced and discharged a large amount of pollution. The harmful substances entering the atmosphere are increasing day by day. At the same time, with the rapid development of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83
Inventor 李凝滕俊江张晓华
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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