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Catalyst for purifying volatile organic compounds and preparation method thereof

A technology for volatile organic compounds and catalysts, which is applied in the field of catalysts for purifying volatile organic compounds and their preparation, can solve the problems of complex preparation and high content of precious metal Pt, and achieve the effects of high reactivity, improved catalyst performance and simple steps.

Pending Publication Date: 2022-05-20
金华铂锐催化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a catalyst for purifying volatile organic compounds with low noble metal Pt content, high reactivity and stable performance and its preparation method in order to solve the defects of high noble metal Pt content and complicated preparation of existing catalysts

Method used

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  • Catalyst for purifying volatile organic compounds and preparation method thereof
  • Catalyst for purifying volatile organic compounds and preparation method thereof
  • Catalyst for purifying volatile organic compounds and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present embodiment provides the preparation method of the catalyst for purifying volatile organic compounds, including:

[0028] (1) CuSO 4 / Preparation of SiC support

[0029] With high specific surface area SiC as carrier (specific surface 60m 2 / g), take by weighing 0.7813g copper sulfate (CuSO 4 ·5H 2 O), add water to dissolve, then add 20g of silicon carbide (SiC) carrier to impregnate for 1 hour, then dry at 120°C for 5 hours, and finally bake at 500°C for 4 hours to obtain CuSO 4 / SiC carrier.

[0030] (2) Fe 3 o 4 -Pt-NiO / CuSO 4 / Preparation of SiC catalyst

[0031] CuSO according to Ni loading 4 / 0.1wt% of SiC carrier, weigh 0.0438g nickel acetylacetonate, dissolve in 10mL acetone solution, add 10g CuSO 4 / SiC support impregnated for 1 h, referred to as A. Then according to the Pt loading for CuSO 4 / 0.1wt% of the SiC carrier, weigh 0.0202 g of platinum (II) acetylacetonate and dissolve it in 5 mL of acetone solution, add platinum (II) acetyl...

Embodiment 2

[0035] The present embodiment provides the preparation method of the catalyst for purifying volatile organic compounds, including:

[0036] (1) CuSO 4 The preparation of / SiC carrier is identical with embodiment 1;

[0037] (2) Fe 3 o 4 -Pt-NiO / CuSO 4 / Preparation of SiC catalyst

[0038] CuSO according to Ni loading 4 / 0.2wt% of SiC carrier, weigh 0.0875g nickel acetylacetonate, dissolve in 10mL acetone solution, add 10g CuSO 4 / SiC support impregnated for 1 h, referred to as A. Then according to the Pt loading for CuSO 4 / 0.1wt% of the SiC carrier, weigh 0.0202 g of platinum (II) acetylacetonate and dissolve it in 5 mL of acetone solution, add platinum (II) acetylacetonate (II) acetone solution to the above-mentioned impregnating solution for immersion, and place in N 2 Dry at 120°C under atmosphere to become sample B. CuSO according to Fe loading 4 0.2wt% of the SiC carrier, weigh 0.1261g of iron acetylacetonate and dissolve it in 5mL of acetone solution, add the...

Embodiment 3

[0042] The present embodiment provides the preparation method of the catalyst for purifying volatile organic compounds, including:

[0043] (1) CuSO 4 The preparation of / SiC carrier is identical with embodiment 1;

[0044] (2) Fe 3 o 4 -Pt-NiO / CuSO 4 / Preparation of SiC catalyst

[0045] CuSO according to Ni loading 4 / 0.3wt% of SiC carrier, weigh 0.1313g nickel acetylacetonate, dissolve in 10mL acetone solution, add 10g CuSO 4 / SiC support impregnated for 1 h, referred to as A. Then according to the Pt loading for CuSO 4 / 0.1wt% of the SiC carrier, weigh 0.0202 g of platinum (II) acetylacetonate and dissolve it in 5 mL of acetone solution, add platinum (II) acetylacetonate (II) acetone solution to the above-mentioned impregnating solution for immersion, and place in N 2 Dry at 120°C under atmosphere to become sample B. CuSO according to Fe loading 4 0.2wt% of the SiC carrier, weigh 0.1261g of iron acetylacetonate and dissolve it in 5mL of acetone solution, add the...

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Abstract

The invention discloses a catalyst for purifying volatile organic compounds and a preparation method thereof, the catalyst is composed of a carrier, an active component and an auxiliary agent, the carrier is CuSO4 / SiC; the active component is Pt; and the auxiliary agents are Fe3O4 and NiO. The CuSO4 / SiC carrier is prepared by loading CuSO4 on SiC powder, and the loading amount of the CuSO4 is 1wt% of the mass of SiC. The active component Pt and the assistants Fe3O4 and NiO are prepared by dipping nickel acetylacetonate, platinum acetylacetonate and iron acetylacetonate in sequence, and the loading capacities of NiO, Pt and Fe3O4 are 0.1-0.4 wt%, 0.1 wt% and 0.2 wt% of the CuSO4 / SiC carrier in terms of elementary substances; the catalyst provided by the invention can be used in a low temperature range, and has very high reaction activity on toluene, ethyl acetate, acetone and ethanol.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a catalyst and a preparation method thereof, in particular to a catalyst for purifying volatile organic compounds and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOCs) are a class of common air pollutants, which are highly toxic to the human body and may cause cancer and other serious diseases. Volatile organic compounds are involved in petrochemical, dye, pharmaceutical, plastic, leather and other industries. VOCs also cause the increase of atmospheric ozone concentration and photochemical pollution, so it is particularly important to strictly control the emission of VOCs. [0003] At present, the methods for removing volatile organic compounds (VOCs) include adsorption, photocatalysis, direct incineration, and catalytic combustion. Catalytic oxidation technology has been widely researched and applied because of its lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/224B01J37/02B01J35/10B01D53/44B01D53/86B01D53/72
CPCB01J27/224B01J37/0205B01D53/8687B01D53/8668B01D2257/708B01J35/613Y02A50/20
Inventor 罗声宏金凌云
Owner 金华铂锐催化科技有限公司