Polyaniline-based desulfurization and denitrification absorbent and preparing method thereof

A polyaniline-based, desulfurization and denitrification technology, applied in the field of desulfurization and denitrification, can solve problems such as poor thermal stability, and achieve the effects of improving absorption capacity, improving capacity, and increasing specific surface area

Inactive Publication Date: 2016-06-22
NANJING XINYUE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor thermal stability of existing organic amine absorbents, thereby proposing a polyaniline-based composite material absorbent with high thermal stability

Method used

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  • Polyaniline-based desulfurization and denitrification absorbent and preparing method thereof
  • Polyaniline-based desulfurization and denitrification absorbent and preparing method thereof
  • Polyaniline-based desulfurization and denitrification absorbent and preparing method thereof

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Experimental program
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Embodiment 1

[0027] This embodiment provides a polyaniline-based composite material absorbent for desulfurization and denitrification, including a matrix polyaniline, a two-dimensional sheet material or a nanoscale porous material wrapped by the matrix; the two-dimensional sheet material or nanoscale porous material occupies The weight percentage of the composite absorbent is 10%-50%.

[0028] The polyaniline-based composite absorber, two-dimensional sheet material or nano-porous material as an additive, acts as a skeleton, and polyaniline is wrapped on it, which can effectively reduce the mutual contact between polyaniline particles and increase its specific surface area. , thereby greatly improving the absorption capacity of the polyaniline-based composite absorbent, and greatly improving its removal efficiency; at the same time, the content of the two-dimensional sheet material or nano-porous material in the composite absorbent should not be too high, too high If the content of polyanil...

Embodiment 2

[0032] This embodiment 2 provides a method for preparing the polyaniline-based composite absorbent for desulfurization and denitrification provided in embodiment 1, comprising the following steps:

[0033] According to the ratio relationship between the aniline, ammonium persulfate and two-dimensional sheet material or nano-scale porous material for synthesizing polyaniline in the above-mentioned embodiment 1, the aniline and two-dimensional sheet material or nano-scale porous material for synthesizing polyaniline After compounding, dissolve the aniline, ammonium persulfate and two-dimensional sheet material or nano-porous material into the acidic solvent. After fully dispersing and synthesizing, centrifuge and place the lower part of the precipitate in an oven to dry , the polyaniline-based composite material desulfurization and denitrification absorbent prepared after drying.

[0034] Dissolving the aniline, sodium persulfate and two-dimensional sheet material or nano-porous...

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Abstract

The invention discloses a polyaniline-based desulfurization and denitrification absorbent and a preparation method thereof, wherein the matrix absorbent is polyaniline, and the substrate is wrapped with a two-dimensional sheet material, such as vermiculite, graphene, or nano-scale porous Materials such as diatomite, two-dimensional sheet material or nanoscale porous material account for 10%-50% by weight of the composite absorbent. The two-dimensional sheet material or nano-scale porous material wrapped by polyaniline can act as a skeleton to effectively reduce the mutual contact between polyaniline particles and increase its specific surface area, thereby greatly improving the absorption capacity of polyaniline-based composite materials. The absorption capacity greatly improves the removal efficiency. Among them, the preparation method includes dissolving aniline, ammonium persulfate, two-dimensional sheet material, and nano-scale porous material into an acidic solvent according to the ratio of synthetic polyaniline. The polyaniline-based composite material absorbent is obtained by drying in an oven. The whole preparation process is simply mixing and drying, and the preparation method is simple and the cost is low.

Description

technical field [0001] The invention relates to a polyaniline-based desulfurization and denitrification absorbent and a preparation method thereof, belonging to the technical field of desulfurization and denitrification. Background technique [0002] Because the current society only pays attention to economic development, it ignores the serious pollution brought to the environment while developing. At present, environmental pollution mainly includes water pollution, air pollution and solid waste pollution. The acid rain, smog, sandstorm and other harsh environments caused by these pollutions have seriously affected people's normal life, so people have paid more attention to and paid more attention to environmental pollution. The country has invested a lot of manpower, material and financial resources to control environmental pollution. [0003] In the final analysis, the main cause of air pollution is the combustion of coal-containing fuels and the smelting of ores, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
CPCB01D53/1456B01D53/1481B01D2252/2053B01D2257/302B01D2257/404
Inventor 刘屹东闵永刚单历元冯亚飞高林
Owner NANJING XINYUE MATERIAL SCI & TECH
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