Desulfurization and denitrification active carbon and preparation method and device thereof

Abstract

The invention discloses desulfurization and denitrification active carbon and a preparation method and device thereof. The active carbon is prepared from the following raw materials: raw coal, coke powder, coal tar, nickel powder, ferric oxide powder, zinc oxide powder and deionized water; the preparation method comprises the following steps that the raw materials are blended and stirred to be uniform and then subjected to bar depression treatment, a first bar depression raw material is obtained, the first bar depression raw material is ground to be powder, the ground raw material is obtained,the ground raw material is subjected to bar depression treatment, a secondary bar depression raw material is obtained, the secondary bar depression raw material is subjected to drying treatment underthe condition of air isolation, a carbonized raw material is obtained, the carbonized raw material is dipped in phosphoric acid, an activated raw material is obtained, the activated raw material is dried and subjected to spray treatment, and the desulfurization and denitrification active carbon is obtained. The preparation device comprises a stirring device, a feeding device and a pressing device. The desulfurization and denitrification active carbon and the preparation method and device thereof increase the sulfur capacity of the active carbon and the oxygen-containing groups on the surface,and remarkably improve the desulfurization and denitrification effect of the active carbon.

Description

technical field [0001] The invention relates to the technical field of carbon processing, in particular to a desulfurization and denitrification activated carbon and a preparation method and device thereof. Background technique [0002] my country is the world's largest coal producer and consumer, and about 84% of coal is burned directly. The burning of a large amount of coal has made the problem of air pollution more and more serious, and sulfur dioxide and nitrogen oxides are the main sources of pollution. Studies have shown that the main cause of smog in my country in recent years is SO 2 and NO X The formed secondary organic aerosol. Activated carbon is a high-quality adsorbent and catalyst, and its adsorption performance mainly depends on its specific surface area and porosity. Desulfurization and denitrification activated carbon, as a special activated carbon, can effectively remove SO by filling it into the desulfurization device 2 and NO X , such as pollutants ...

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Problems solved by technology

[0004] In order to overcome the problems existing in the related technologies, the present invention provides a desulfurization and denitrification activated carbon and its preparation method and device to solve the problem of low sulfur capacity and few oxygen-containing groups in the activated carbon produced by the existing method for producing desulfurization and denitration activated carbon. The problem of poor desulfurization and denitrification effect

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