Supported desulfurizer and preparation method and application thereof

Abstract

The invention discloses a supported desulfurizer and a preparation method and application thereof, the preparation method comprises the following steps: 1) washing, screening and drying furfural residue, and carbonizing in a carbonization furnace to obtain a furfural residue carbonized material; 2) dissolving a metal compound, a compound surfactant, a pore-increasing agent and a strength enhancer in an organic solvent, and fully mixing to obtain an impregnation liquid; 3) impregnating the furfural residue carbonized material in the impregnation liquid, and filtering and drying to obtain a carrier loaded with an active metal compound; and 4) dipping the carrier loaded with the active metal compound in a sodium hydroxide solution, filtering, drying, and roasting to obtain the loaded desulfurizer. The carbonized material is prepared by taking the furfural residue as a raw material, so that the furfural residue can be reasonably recycled, the pollution of the furfural residue to the environment is eliminated, and the production cost of the desulfurizer is reduced; and the activated metal is loaded on the carbonized material, so that the adsorbent has very high adsorption efficiency on sulfides in waste gas.

Description

technical field [0001] The invention relates to a desulfurizing agent, in particular to a loaded desulfurizing agent and its preparation method and application. Background technique [0002] With the rapid development of the global economy, a large amount of fossil fuels are exploited and utilized. SO from combustion of fossil fuels x , Sulfate particles have caused adverse effects on the environment and human health. [0003] Adsorption desulfurization is a technology that uses adsorbents to effectively adsorb sulfur-containing compounds in fuel oil for desulfurization. The advantages of adsorption desulfurization are: for low concentration SO 2 It has high purification efficiency, simple equipment, convenient operation and effective recovery of SO 2 . In recent years, activated carbon as an adsorbent has attracted extensive attention in desulfurization due to its advantages of low production cost and large adsorption capacity. Patents CN105126597B, CN104338435B, etc....

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Problems solved by technology

Patents CN105126597B, CN104338435B, etc. disclose an adsorption-type desulfurizer using activated carbon as a carrier, but it uses traditional activated carbon, and the traditional activated carbon production method is likely to cause waste of coal and wood, so it is urgent to find a cheap desulfurizer that can Recycled Alternative Materials

[0004] Although CN102500323B discloses a kind of coconut shell activated carbon, the coconut shell activated carbon is limited because of the origin of the carbon on the one hand, and on the other hand because the price is higher, it is not suitable for large-scale production and application.

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