V-Ce-Ti (vanadium-cerium-titanium) catalyst for joint denitrification to remove dioxin

A technology for removing dioxins and v-ce-ti, which is applied in the field of V-Ce-Ti catalysts, can solve the problems of catalysts that are difficult to catalyze degradation of NOx and dioxins, and catalyst environmental pollution, so as to reduce emissions and reduce production cost, effect of avoiding pollution

Inactive Publication Date: 2019-01-18
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem in the prior art that catalysts are difficult to catalytically degrade NOx and dioxins under low temperature conditions, and provide a V-Ce-Ti catalyst combined with denitrification and dioxin removal, which can reduce NO x and dioxin emissions; further, it can solve the environmental pollution problem of the catalyst after the reaction

Method used

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  • V-Ce-Ti (vanadium-cerium-titanium) catalyst for joint denitrification to remove dioxin
  • V-Ce-Ti (vanadium-cerium-titanium) catalyst for joint denitrification to remove dioxin
  • V-Ce-Ti (vanadium-cerium-titanium) catalyst for joint denitrification to remove dioxin

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Embodiment 1

[0034] A V-Ce-Ti catalyst for combined denitrification and dioxin removal of the present invention, the V-Ce-Ti catalyst is V a Ce b Ti c o x Catalyst is made by sol-gel method in one step, wherein the oxide mass ratio of V and Ce is 0.5 to 1, and the oxide mass ratio of Ce and Ti is 0.05 to 0.16. is measured, the measured V a Ce b Ti c o x The specific surface area of ​​the catalyst is 95.7219m 2 / g; In the present embodiment, the mass ratio of V and Ce is 1, and the mass ratio of Ce and Ti is 18, V a Ce b Ti c o x The mass ratio of V, Ce, and Ti oxides in the catalyst is 1:1:18.

[0035] A kind of preparation method of the V-Ce-Ti catalyst of combined denitrification and dedioxin as described above comprises the steps:

[0036] Step 1, mixing tetrabutyl titanate, glacial acetic acid and absolute ethanol, then adding cerium nitrate and stirring evenly to obtain mixed solution A;

[0037] Step 2, dissolving oxalic acid in water to obtain an oxalic acid solution, t...

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Abstract

The invention discloses a V-Ce-Ti (vanadium-cerium-titanium) catalyst for joint denitrification to remove dioxin, and belongs to the technical field of treatment on flue gas pollutants. The V-Ce-Ti catalyst is characterized in that the mass ratio of V and Ce oxides is 0.5 to 1; the mass ratio of Ce and Ti oxides is 0.05 to 0.16; the mass ratio of V, Ce and Ti oxides is 1:1:18; the specific surfacearea is 95.7219m<2>/g. The V-Ce-Ti catalyst for joint denitrification to remove dioxin has the advantages that when the flue gas is treated, the produced dioxin and oxynitride in the sintering process can be removed, the emission of dioxin and oxynitride in the sintering flue gas is reduced, and the powerful guarantee is provided for the clean production of steel and iron industry.

Description

technical field [0001] The invention relates to the technical field of flue gas pollutant treatment, in particular to a V-Ce-Ti catalyst combined with denitrification and dioxin removal. Background technique [0002] my country's steel production ranks among the top in the world for many years in a row. At the same time, the pollutant content emitted during the steel production process is also much higher than the world's advanced level. Among them, polychlorinated dibenzodioxins and polychlorinated The pollution of dibenzofurans (PCDDs / PCDFs) to the environment has also become more and more serious. Among them, dioxins have strong carcinogenic and teratogenic effects and high toxicity, are extremely difficult to degrade in the environment, and can also be enriched through the food chain. They are highly fat-soluble and can be transported in the atmosphere for long distances to affect the regional and even global environment. Known as the "poison of the century". At present...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/22B01J37/03B01J37/08B01J35/10B01D53/86B01D53/56
CPCB01D53/70B01D53/8628B01D53/8662B01D2258/025B01D2258/0283B01J23/002B01J23/22B01J35/1014B01J37/036B01J37/082B01J2523/00B01J2523/3712B01J2523/47B01J2523/55
Inventor 龙红明施琦李安琪王凯祥高志芳张洪亮春铁军余正伟狄瞻霞
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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