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Catalyst for room temperature formaldehyde purification, and use thereof

A formaldehyde purification and catalyst technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as poor stability, high price, and poor moisture resistance , achieving high stability, convenient operation and low cost

Active Publication Date: 2015-09-16
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But the catalyst of above-mentioned prior art is expensive, has poor moisture resistance, and poor stability

Method used

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  • Catalyst for room temperature formaldehyde purification, and use thereof
  • Catalyst for room temperature formaldehyde purification, and use thereof
  • Catalyst for room temperature formaldehyde purification, and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A catalyst for purifying formaldehyde at room temperature, the catalyst is composed of a porous inorganic oxide, a transition metal active component and an auxiliary agent supported on the porous inorganic oxide, the porous inorganic oxide is cerium oxide, and its ratio Surface area is 10m 2 / g, the particle diameter is 30nm, the active component is manganese iridium composite oxide, the molar ratio of described manganese and iridium is 0.03, the weight of catalyst is 100%, the transition metal active component is by transition metal element weight, The percentage by weight of the transition metal active component is 5%, the auxiliary agent is barium oxide, and the auxiliary agent content is 8%.

Embodiment 2

[0040] All the other are identical with embodiment 1, except that specific surface area is 1000m 2 / g.

Embodiment 3

[0042] All the other are identical with embodiment 1, except that specific surface area is 60m 2 / g.

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Abstract

The invention relates to a catalyst for room temperature formaldehyde purification. The catalyst comprises a porous inorganic oxide carrier, and an active component and an assistant which are loaded on the carrier, the active component comprises a transition metal active component, and the transition metal is anyone of or a combination containing at least two of manganese, iron, ruthenium, iridium, osmium, nickel, copper and zinc. The catalyst for room temperature formaldehyde purification can be used under simple conditions, is convenient to operate, can effectively catalyze the main indoor pollutant formaldehyde under room temperature conditions, can catalyze oxidation of formaldehyde under room temperature conditions to form carbon dioxide water without formic acid, carbon monoxide, methyl formate or other byproducts, and allows he formaldehyde conversion rate to reach 100%.

Description

technical field [0001] The invention relates to a catalyst, in particular to a catalyst for purifying formaldehyde at room temperature. Background technique [0002] With the improvement of people's material and cultural living standards, interior decoration has become fashionable, but indoor air pollution is also becoming more and more serious. Formaldehyde is one of the most typical and serious pollutants in the indoor environment. The concentration limit of formaldehyde pollutants in indoor air stipulated by my country's national standards is 0.08mg / m 3 . At present, the concentration of formaldehyde in the indoor environment of our country exceeds the standard. According to the sampling survey conducted by the National Center for Disease Control and Prevention, more than 60% of the newly decorated residential buildings in my country have excessive formaldehyde concentration, which has caused great harm to people's health. With the improvement of environmental protecti...

Claims

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Application Information

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IPC IPC(8): B01J23/656B01J23/89B01D53/86B01D53/72
Inventor 贺泓张长斌王莲王少莘
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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