Methanol filter

Abstract

The invention relates to a methanol filter, comprising a shell with a hollow inner cavity, the upper end of the shell is open, a sealing cover is provided at the opening of the upper end, an air outlet is provided on the sealing cover, and the shell The lower part of the body is provided with an air inlet, the bottom of the housing is provided with a sewage outlet, and the hollow inner cavity is sequentially provided with a first ring magnet, an activated carbon filter adsorption layer, a filter cotton layer and a second filter layer from top to bottom. Two ring magnets, the first and second ring magnets are respectively separated from the activated carbon filter adsorption layer and the filter cotton layer by a preset distance. In the present invention, when the methanol is introduced from the air inlet and discharged from the air outlet, impurities such as sulfide and iron in the methanol can be removed, thereby ensuring that the quality of methanol can be improved in the formaldehyde production process and better protect silver. Catalyst cleanliness and service life.

Description

technical field [0001] The invention belongs to the technical field of formaldehyde production, and in particular relates to a methanol filter. Background technique [0002] Formaldehyde is a colorless gas with a strong pungent odor, easily soluble in water, alcohol and ether. Formaldehyde is gaseous at room temperature and usually appears in the form of aqueous solution. Formaldehyde is an important organic raw material, mainly used in artificial synthesis. With the development of industry, formaldehyde is used more and more widely as a raw material, such as synthetic fibers, leather industry, medicine, dyes, etc. Formalin has bactericidal and antiseptic capabilities, and can soak biological specimens. Its dilute solution (0.1-0.5%) can be used for soaking and disinfecting seeds in agriculture. [0003] Catalytic oxidation is commonly used in industry to produce formaldehyde from methanol. Formaldehyde is produced by catalytic oxidation of methanol in industry. Therefore,...

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Problems solved by technology

[0003] Catalytic oxidation is commonly used in industry to produce formaldehyde from methanol. Formaldehyde is produced by catalytic oxidation of methanol in industry. Therefore, the purity of methanol is directly related to the quality of the produced product. Methanol produced by natural gas and coal chemical industry contains trace impurities , these impurities are difficult to detect, especially crude alcohol contains more impurities, therefore, methanol needs to be pretreated to make the purity of methanol higher, thereby improving the production quality of formaldehyde, but currently there is no A Better Methanol Filtration System

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