Industrial quick flue gas desulfurizing agent and preparation method thereof

Abstract

The invention discloses an industrial quick flue gas desulfurizing agent. The industrial quick flue gas desulfurizing agent is prepared from the following raw materials in parts by weight: 100 to 110 parts of bamboo charcoal, 30 to 35 percent of calcium oxide, 10 to 12 parts of ferric oxide, 20 to 23 parts of copper oxide, 10 to 12 parts of silicon dioxide, 20 to 24 parts of alum, 2 to 3 parts of vanadium pentoxide, 10 to 12 parts of hibiscus syriacus, 70 to 80 parts of diatomite, 20 to 24 parts of honeysuckle, 12 to 15 parts of fructus forsythiae, 30 to 35 parts of wild chrysanthemum flower, 3 to 4 parts of lignin, 10 to 12 parts of simethicone, 1 to 2 parts of rosin-polyethylene oxide ester, 4 to 5 parts of assistant agent and a suitable amount of water. The desulfurizing agent disclosed by the invention has a developed pore structure and a large specific surface area, has excellent effects of adsorbing, decoloring, and resisting bacteria, and is favorable for environmental friendliness; desulfurization can be performed quickly by using a plurality of alkali metal oxides. The industrial quick flue gas desulfurizing agent is applicable to desulfurization of boiler gas flue, does not generate secondary pollution, can be desorbed by using ammonia gas, has an obvious effect and high desorption efficiency, and is easy and convenient to use and low in cost.

Description

technical field [0001] The invention relates to a desulfurizer, in particular to an industrial fast flue gas desulfurizer and a preparation method thereof. Background technique [0002] At present, there are three main methods of flue gas desulfurization agent: one is the combustion sulfur fixation method, which is to add a certain amount of sulfur fixer to the coal, so that the sulfur dioxide generated during the combustion of coal will react with the sulfur fixer, and the sulfate will be discharged together with the slag. , this method is more costly. Another method is wet desulfurization, which mainly adopts spraying method and uses alkaline aqueous solution to absorb sulfur dioxide in flue gas. The land area is large, and the requirements for equipment anti-corrosion are high. Another method is activated carbon adsorption. This method has a short service life of activated carbon, complex regeneration, low desulfurization efficiency, large water consumption for washing,...

AI Technical Summary

Problems solved by technology

Another method is wet desulfurization, which mainly adopts spraying method, and uses alkaline aqueous solution to absorb sulfur dioxide in flue gas. Large area, high requirements for equipment anti-corrosion

Another method is the activated carbon adsorption method, which has a short service life of activated carbon, complicated regeneration, low desulfurization efficiency, large water consumption for washing, easy to cause secondary pollution, and high price of activated carbon, which increases the cost.

[0003] There are two main ways to remove NO and NO2 from flue gas. One is to reduce NO and NO2, such as using ammonia (NH3) as a reducing agent to reduce it to nitrogen. It is necessary to continuously adjust NH3 according to the operating load of the boiler. The amount of injection and the location of injection to ensure that NH3 is injected at the optimum temperature, this method has high operating costs; the other is to convert it into nitrate by oxidation, so as to achieve the purpose of removing NO and NO2