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Sulfuric acid mist elimination method

A technology of sulfuric acid mist and fly ash, which is applied in separation methods, chemical instruments and methods, and other chemical processes, etc., can solve problems such as low price, and achieve the effect of low price, good adsorption performance, and solving treatment problems.

Inactive Publication Date: 2013-03-27
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for eliminating sulfuric acid mist. This method is not only cheap, but also has good adsorption performance and will not cause secondary pollution. Disposal of waste fly ash

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] The fly ash described in the embodiment of the present invention is a solid waste produced in the process of burning coal. Its formation process is that firstly, the pulverized coal is sprayed into the coal-fired furnace, and some components with a lower gasification temperature in the pulverized coal escape. Exhaust and combustion generate heat, so that the pulverized coal has some pores, and further becomes porous carbon particles. As the ...

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Abstract

The embodiment of the invention discloses a sulfuric acid mist elimination method. The method comprises the following steps of absorbing the sulfuric acid mist by adopting solid waste coal ash; and further carrying out alkaline activation and modification on the coal ash by adopting NaOH or CaO as a modifying agent so as to improve the adsorption performance of the coal ash. According to the sulfuric acid mist elimination method, not only is the cost low, but also the adsorptive property is good, an the secondary pollution can be avoided, so that the management problem of the sulfuric acid mist in a lead-acid storage battery plant is solved, and the treatment problem of industrial waste material coal ash is also solved.

Description

technical field [0001] The invention relates to the technical field of acid gas treatment, in particular to a method for eliminating sulfuric acid mist. Background technique [0002] At present, among chemical power sources, lead-acid batteries have the advantages of high electromotive force, large capacity, long life, wide operating environment temperature range, and are suitable for large current discharge. However, during the production process of lead-acid batteries, the temperature of the sulfuric acid electrolyte is kept at 60°C, and the sulfuric acid molecules in it will partially evaporate into the air, condensing with the moisture in the air to form acid mist; on the other hand, chemical reactions will occur during the formation process, producing hydrogen and Oxygen forms bubbles and floats up to the liquid surface and explodes, taking sulfuric acid out in the form of small droplets. [0003] The sulfuric acid mist produced above is a substance between the smoke a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01J20/20B01J20/30
Inventor 舒月红方瑜高倩陈红雨
Owner SOUTH CHINA NORMAL UNIVERSITY
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