Vanadium-carbon-based catalyst for desulfurization and denitrification as well as preparation method and application of vanadium-carbon-based catalyst

A carbon-based catalyst, desulfurization and denitrification technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of uneven dispersion, low regeneration temperature, and loose atmosphere control, and improve the degree of dispersion. , the effect of improving reactivity and stability

Active Publication Date: 2019-04-09
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

This method can improve the wear resistance and catalytic activity stability of modified active coke, but due to the lack of effective dispersion measures, the active components are directly dissolved and added without treatment, resulting in the dispersion of active components such as vanadium in the active coke Inhomogeneous, which makes the modified activated coke prepared by the bulk method still have the defect that the sulfur capacity and denitrification activity continue to decl

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  • Vanadium-carbon-based catalyst for desulfurization and denitrification as well as preparation method and application of vanadium-carbon-based catalyst
  • Vanadium-carbon-based catalyst for desulfurization and denitrification as well as preparation method and application of vanadium-carbon-based catalyst
  • Vanadium-carbon-based catalyst for desulfurization and denitrification as well as preparation method and application of vanadium-carbon-based catalyst

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Embodiment Construction

[0031] The technical solution of the present invention and its effects will be further described below through specific examples. The following examples are only used to illustrate the content of the present invention, and are not intended to limit the protection scope of the present invention. Applying the idea of ​​the present invention to make simple changes to the present invention is within the scope of protection of the present invention.

[0032] The preparation method of the desulfurization and denitrification vanadium carbon-based catalyst of embodiment and comparative example is as follows:

[0033] (1) Preparation of coal powder: coking coal, coke powder, and dry asphalt are crushed, mixed and pulverized to a particle size of 200 mesh;

[0034] (2) Use ammonium metavanadate or potassium metavanadate, oxalic acid and deionized water to prepare a vanadium-containing complex solution;

[0035] (3) Manufacturing coal paste: Add the prepared coal powder, coal tar, and ...

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Abstract

The invention discloses a vanadium-carbon-based catalyst for desulfurization and denitrification comprising a carbon material and vanadium serving as an active component, wherein measured by V2O5, vanadium accounts for 0.5%-10% of the weight of the catalyst, and the balance is the carbon material. The vanadium-carbon-based catalyst has the advantages that the preparation method is simple and convenient, the active component is uniformly distributed, and the sulfur capacity and denitrification activity are remarkably improved with a regeneration process.

Description

technical field [0001] The invention relates to a vanadium-carbon-based catalyst and a preparation method thereof, in particular to a vanadium-carbon-based catalyst for desulfurization and denitrification, a preparation method and application thereof. technical background [0002] SO emissions from fossil fuel combustion 2 Nitrogen and nitrogen oxides (NOx) are the main causes of acid rain and photochemical smog, and their emissions have seriously exceeded the carrying limit of the atmospheric environment, causing serious damage to the ecological environment and bringing huge economic losses to human beings. Since the 1960s, on the basis of many years of research on the control technology of flue gas pollutants emitted by fossil fuel combustion, German researchers have begun to study SO in industrial flue gas. 2 and NOx simultaneous removal technology research. [0003] Activated coke dry method integrated removal of various pollutants in flue gas technology can realize SO...

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Application Information

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IPC IPC(8): B01J23/22B01D53/60B01D53/86
CPCB01D53/8637B01J23/22B01J35/0066
Inventor 张晓航曾泽泉黄张根郭士杰宁卫云韩小金
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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