A preparation method of modified porous carbon fiber for flue gas desulfurization and denitrification

Abstract

The invention discloses a preparation method of modified porous carbon fiber for smoke gas desulfurization and denitrification. The modified porous carbon fiber is prepared from raw materials including tris(hydroxymethyl)methyl aminomethane, aminopropionic acid, sodium hydroxide, coconut shell, phenol, polyvinyl alcohol and the like. The carbon fiber uses coconut shell for preparing the porous carbon fiber; after the multi-time modified process treatment, the surface of the carbon fiber is subjected to great-amount amino modification; meanwhile, the structure advantages of high specific surface area and multiple micropores of the active carbon fiber are maintained; greater saturation adsorption volume can be shown through the surface high reaction activity; great amount adsorption on nitric oxide and sulfur oxide in the smoke gas can be realized; meanwhile, the preparation method is simple; the conditions are mild; the method is suitable for scaled production and use.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a preparation method of modified porous carbon fiber for flue gas desulfurization and denitrification. Background technique [0002] Coal occupies a dominant position in my country's energy production and consumption structure, and its output accounts for the vast majority of the country's energy output. However, with the continuous development of coal energy, the corresponding industries that use coal as energy produce a large amount of waste gas. These Exhaust gas is discharged into the environment, causing environmental pollution. In the exhaust gas polluted by coal burning, the content of nitrogen oxides and sulfur oxides is the majority. This requires manufacturers to adopt effective desulfurization and denitrification methods to control the pollution of exhaust gas degree. [0003] Among many flue gas desulfurization and denitrification technologies, wet fl...

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Problems solved by technology

[0005] At the same time, because the carbon fiber preparation process includes carbonization or graphitization, the carbon atom stacking orientation on the carbon fiber surface is more consistent, and the atomic layer spacing is smaller, so the fiber surface is non-polar and chemically inert. In addition, the carbon fiber surface has hydrophobic, Shortcomings such as smoothness and low adsorption performance lead to poor interfacial bonding between carbon fiber and its composite material