Preparation method of high efficient desulfurization and denitration adsorbent

Abstract

The invention discloses a preparation method of a high-efficiency desulfurization and denitrification adsorbent. The preparation method includes the following steps: (1) mixing: adding nano-magnesia powder to water as a solvent and mixing (dissolving at 30-50°C) homogeneous MgSO 4 ·7H 2 In the mixed solution of O and Tianjin powder thickener, mix evenly and stir with water to adjust to a moldable soft state; (2) molding: adopt extruder to carry out molding treatment, and extrude thin strips of nano-magnesium oxide adsorbent; (3) drying: at 120°C, dry the adsorbent in an oven for 10 minutes; (4) granulation: after the adsorbent is dried, cut it into thin strips of a certain length; (5) roasting: in a resistance furnace at a certain temperature Raise the temperature to activate roasting, take it out and cool it at room temperature, that is, the granular nano-magnesia adsorbent. The process condition of the invention is simple, the reaction condition is mild, the prepared desulfurization and denitration high-efficiency adsorbent is safe and environment-friendly, the effect is stable and good, and has great market prospect.

Description

technical field [0001] The invention relates to the field of fine chemical industry, in particular to a preparation method of a high-efficiency desulfurization and denitrification adsorbent. Background technique [0002] my country is the world's largest producer and consumer of coal, and coal still accounts for a large proportion of my country's energy structure. According to statistics, about 80% of my country's electric energy, 70% of industrial fuel, 60% of chemical raw materials, 80% Both heating and domestic fuel come from coal. With the rapid development of the global economy, the development and utilization of coal has brought serious pollution to the environment. In particular, coal-fired power plant boilers emit a large amount of sulfur oxides and nitrogen oxides, accounting for about 1% of the total emissions. exacerbated the deterioration of the environment. Among them, atmospheric smoke and dust, acid rain, greenhouse effect and destruction of the ozone layer h...

AI Technical Summary

Problems solved by technology

Due to the shortcomings of step-by-step desulfurization and denitrification technology, such as complex process, large floor space, and high operating costs, the desulfurization and denitrification technology with simple development technology, low operating cost, and stable operation has become one of the important directions for the development of coal-fired flue gas treatment technology in the future.