A kind of preparation method of using iron-containing solid waste to prepare vocs catalyst

A technology of catalyst and catalyst carrier, which is applied in the field of air pollution control, can solve problems such as the blank period of research, achieve broad market application prospects, good low-temperature catalytic effect, and wide applicability

Active Publication Date: 2020-03-13
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of catalysts for the catalytic degradation of VOCs using iron-containing solid waste as a carrier, and the relevant research is in a blank period.

Method used

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  • A kind of preparation method of using iron-containing solid waste to prepare vocs catalyst
  • A kind of preparation method of using iron-containing solid waste to prepare vocs catalyst
  • A kind of preparation method of using iron-containing solid waste to prepare vocs catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) Prepare catalyst carrier with iron-containing solid waste: take 200g iron-containing solid waste (wherein SiO 2 : 40%; Fe 2 o 3 : 11%; TiO 2 MgO: 8%; MgO: 10%; Others: 31%) and organic matter 6g (corn stalk); after the two are pulverized with a pulverizer, the powder between 180~300 meshes is obtained through sieving, and the two powders are mixed evenly. Then, it was calcined at 500°C for 2 h under nitrogen atmosphere to obtain the catalyst support, denoted as TC.

[0033] (2) Catalyst preparation: take 1g catalyst carrier and be dispersed in the mixed solution that contains manganese nitrate and cerium nitrate, wherein the mass ratio of Mn element and Mn element and catalyst carrier total mass is 0.15, and the mol ratio of metal Ce element and Mn element is 0.3. Stir thoroughly for 30 min, then transfer the obtained mixture to a 90°C water bath environment and continue stirring until the water evaporates completely. The evaporated solid was fully dried at 130...

Embodiment 2

[0045] (1) Prepare catalyst carrier with iron-containing solid waste: take 250g iron-containing solid waste (wherein SiO 2 : 37%; Fe 2 o 3 : 9%; TiO 2 MgO: 5%; MgO: 12%; Others: 37%) and organic matter 7.5g (corn cob), after the two are pulverized with a pulverizer, the powder between 180~250 meshes is obtained through sieving, and then 450 under nitrogen atmosphere Calcined at ℃ for 2h to obtain a catalyst carrier, denoted as TC.

[0046] (2) Catalyst preparation: Weigh 1g of the catalyst carrier and disperse it in a mixed solution containing cerium nitrate (active component) and cobalt nitrate (auxiliary), wherein the mass ratio of the Ce element to the total mass of the Ce element and the catalyst carrier is 0.15, and the metal The molar ratio of the Co element to the Ce element was 0.45. Stir thoroughly for 30 min, then transfer the obtained mixture to an 80°C water bath environment and continue stirring until the water evaporates completely. The evaporated solid was ...

Embodiment 3

[0054] (1) Prepare catalyst carrier with iron-containing solid waste: take 200g iron-containing solid waste (wherein SiO 2 : 32%; Fe 2 o 3 : 6%; TiO 2 MgO: 5%; MgO: 4%; Others: 53%) and organic matter 8g (corncobs), after the two are pulverized with a pulverizer, get the powder between 180~300 mesh through sieving. Then, it was calcined at 400°C for 3 h under nitrogen atmosphere to obtain the catalyst support, denoted as TC.

[0055] (2) Catalyst preparation: Weigh 1g carrier and disperse it in a mixed solution containing nickel nitrate and cerium nitrate, wherein the mass ratio of Ni element to the total mass of Ni element and catalyst carrier is 0.15, and the molar ratio of metal Ce element to Ni element is 0.15 . Stir thoroughly for 60 min, then transfer the obtained mixture to a 90°C water bath environment and continue stirring until the water evaporates completely. The evaporated solid was fully dried at 130°C for 5 hours, then ground into a uniform powder, and final...

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Abstract

The invention relates to a method for preparing a VOCs catalyst by using iron-containing solid waste and catalytic oxidation of volatile organic compounds by using the catalyst. The novel catalyst forthe efficient catalytic oxidation of VOCs is prepared by using mixed powder of the iron-containing solid waste and organic matter as a carrier material of the catalyst, loading metal (one of Mn, Fe,Ni, Ce and V) oxide active components and doping an auxiliary agent (one of nitrates of Fe, Co and Ce and CaCO3). The catalyst simultaneously loaded with manganese and doped with cerium has the best catalytic activity.

Description

technical field [0001] The invention belongs to the field of air pollution control, and in particular relates to a preparation method for preparing a VOCs catalyst by using iron-containing solid waste. Background technique [0002] As the key precursor for the formation of atmospheric ozone and fine particle pollution, the emission control of volatile organic compounds (VolatileOrganic Compounds, VOCs) is the focus of current air pollution prevention and control work. The "13th Five-Year Plan" Volatile Organic Compound Pollution Prevention and Control Work Plan defines volatile organic compounds as "organic compounds that participate in atmospheric photochemical reactions, including non-methane hydrocarbons (alkanes, alkenes, alkynes, aromatic hydrocarbons, etc.), oxygen-containing organic compounds (aldehydes, ketones, alcohols, ethers, etc.), chlorine-containing organic compounds, nitrogen-containing organic compounds, sulfur-containing organic compounds, etc., most of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J23/83B01J23/847B01J32/00B01J37/02B01D53/86B01D53/44
CPCB01D53/8687B01D2257/708B01J23/83B01J23/8472B01J23/8892B01J37/0036B01J37/0201
Inventor 马小东
Owner HEBEI UNIV OF TECH
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