Hydrogen chloride magnesium-based adsorbent and preparation method thereof
An adsorbent, hydrogen chloride technology, applied in chemical instruments and methods, separation methods, inorganic chemistry and other directions, can solve the problems of low conversion rate of adsorbents, and achieve the effects of low cost, good stability and high performance
Inactive Publication Date: 2020-09-01
WUHAN UNIV OF TECH
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Problems solved by technology
[0010] One of the purposes of the present invention is to provide a magnesium hydrogen chloride-based adsorbent, which is mainly used to improve the conversion reaction rate of the adsorbent based on MgO, and solve the problem of low conversion rate of the adsorbent
Method used
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Comparison scheme
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Embodiment Construction
[0028] For a better understanding of the present invention, the following examples are further descriptions of the present invention, but the content of the present invention is not limited to the following examples.
[0029] A preparation method of magnesium hydrogen chloride based adsorbent, comprising the steps of:
[0030] (1) First, magnesite (the main component is magnesium carbonate, the mass fraction of magnesium carbonate is greater than 80%) is crushed and screened to obtain powder, and then the powder is calcined in a calcination furnace at 600°C, MgCO 3 →MgO+CO 2 , to obtain a powder containing magnesium oxide;
[0031] (2) configuration mass concentration is the mixed aqueous solution of sodium chloride and manganese nitrate of 20%, the mol ratio of sodium chloride and manganese nitrate is 1:1; The calcined product containing magnesium oxide powder obtained in step (1) is added Into the mixed aqueous solution of sodium chloride and manganese nitrate, the total m...
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Abstract
The invention belongs to the technical field of environmental pollution control and clean coal combustion, and particularly relates to a hydrogen chloride magnesium-based adsorbent and a preparation method thereof. The preparation method comprises the following steps: (1) grinding magnesite into powder, and calcining at a certain temperature for a certain time to obtain powder taking magnesium oxide as a main component; (2) putting the calcined product obtained in step (1) into a mixed aqueous solution of sodium chloride and manganese nitrate, and stirring until the obtained mixture is uniformly mixed; and (3) drying the mixture obtained in step (2) at a certain temperature to obtain the hydrogen chloride magnesium-based adsorbent. The hydrogen chloride magnesium-based adsorbent obtained by the preparation method disclosed by the invention can keep good stability and has good acid gas adsorption capacity. In an experiment that the magnesium-based adsorbent absorbs hydrogen chloride, the hydrogen chloride adsorption effect of the magnesium-based adsorbent prepared by the method is better than that of an unmodified magnesium-based adsorbent.
Description
technical field [0001] The invention belongs to the technical field of environmental pollution prevention and clean coal combustion, and specifically relates to a magnesium hydrogen chloride-based adsorbent and a preparation method thereof. Background technique [0002] In recent years, biomass, refuse-derived fuel (RDF), medical waste combustion or gasification power generation technology has received extensive attention. This technology not only effectively treats solid waste and solves the pollution problem, but also realizes the resource utilization. Waste incineration technology has the advantages of reduction, harmlessness, heat supply, and power generation, and has become the main way of waste disposal today. However, the composition of waste is complex, and secondary pollution will inevitably be generated during the incineration process. Among them, chlorine is the secondary pollution caused by domestic waste incineration. One of the important elements of secondary ...
Claims
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IPC IPC(8): B01D53/50B01D53/62B01D53/68B01D53/81C01F5/00C04B2/10
CPCB01D53/508B01D53/62B01D53/68B01D53/81B01D2251/402B01D2251/602B01D2257/2045B01D2257/504B01D2258/0283C01F5/00C04B2/10
Inventor 吴汇哲陈奔
Owner WUHAN UNIV OF TECH