Method and nano device for removing heavy metal in flue gas

A technology for removing heavy metals and heavy metals, applied in metal/metal oxide/metal hydroxide catalysts, separation methods, chemical instruments and methods, etc., can solve problems such as mercury leakage and groundwater pollution

Active Publication Date: 2014-07-30
林小晓 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mercury that has been buried over the years

Method used

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  • Method and nano device for removing heavy metal in flue gas
  • Method and nano device for removing heavy metal in flue gas
  • Method and nano device for removing heavy metal in flue gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: a kind of method for eliminating heavy metals in flue gas is characterized in that it comprises the following steps:

[0082] (1) Embedding nanomaterials on the fiber matrix; (see Figure 11-1 , Figure 11-2 , Figure 12-1 , Figure 12-2 )

[0083] (2) Make the flue gas containing heavy metals pass through the fiber matrix embedded with nanomaterials;

[0084] (3) The nanomaterial reacts with the heavy metals in the flue gas and captures the heavy metals in the flue gas.

[0085] The method of embedding nanomaterials on the fiber matrix is ​​as follows:

[0086] Adhesive is attached to the fiber substrate; before the adhesive dries, the nanomaterial is sprayed onto the fabric by a nanosprayer; after the nanomaterial is sprayed, it is left at room temperature for at least 24 hours to fully cure. (See Figure 11-1 , Figure 11-2 , Figure 12-1 , Figure 12-2 )

[0087] The adhesive is selected REN50 to 80( ) of silicone resin solution. The R...

Embodiment 2

[0103] Embodiment 2: a kind of method for eliminating heavy metals in flue gas is characterized in that it comprises the following steps:

[0104] (1) Embedding nanomaterials on the fiber matrix;

[0105] (2) Make the flue gas containing heavy metals pass through the fiber matrix embedded with nanomaterials;

[0106] (3) The nanomaterial reacts with the heavy metals in the flue gas and captures the heavy metals in the flue gas.

[0107] The method for embedding the nanomaterials on the fiber matrix is: directly loading the nanomaterials on the fiber matrix: suspending the nanomaterials in a volatile solvent; soaking the fiber matrix in the nanomaterial suspension, or passing the nanomaterials through The sprayer is sprayed on the fiber substrate; the fiber substrate with nanomaterials attached is heated in an oven at 500 degrees for 3 to 4 hours; after the solution evaporates, nanowires and nanoparticles will be interwoven with the fiber network; cooling After reaching room te...

Embodiment 3

[0142] Embodiment 3: a kind of method for eliminating heavy metals in flue gas is characterized in that it comprises the following steps:

[0143] (1) Embedding nanomaterials on the fiber matrix;

[0144] (2) Make the flue gas containing heavy metals pass through the fiber matrix embedded with nanomaterials;

[0145] (3) The nanomaterial reacts with the heavy metals in the flue gas and captures the heavy metals in the flue gas.

[0146] The method of embedding nanomaterials on the fiber matrix is ​​as follows:

[0147] Adhesive is attached to the fiber substrate; before the adhesive dries, the nanomaterial is sprayed onto the fabric by a nanosprayer; after the nanomaterial is sprayed, it is left at room temperature for at least 24 hours to fully cure

[0148] The adhesive epoxy.

[0149] The nanomaterial is CdS nanowire.

[0150] The synthetic method of described CdS nanowire is:

[0151] Put toluene, distilled water, and 1,12 alkanethiol in a picoclave high-pressure reac...

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Abstract

The invention relates to a method for removing heavy metal in flue gas. The method comprises the following steps of (1) enabling a nanometer material to be embedded into a fiber substrate; (2) enabling the flue gas containing the heavy metal to pass through the fiber substrate in which the nanometer material is embedded; and (3) reacting the nanometer material with the heavy metal in the flue gas to capture the heavy metal in the flue gas. The invention also provides a nano device for removing heavy metal in flue gas, and the device is characterized by comprising the fiber substrate in which the nanometer material is embedded. The method and the nano device have the advantages that 1, mercury and other heavy metal substances such as lead generated by fire coal waste gas can be removed; 2, the recycling benefit is far higher than the operating cost of equipment, so that a user can obtain more profit; 3, the method and the device are suitable for other industrial markets such as a cement plant, an iron and steel plant, a municipal government waste burning plant, a medical waste burning plant, a chlorine manufacturer, and a pulp and paper manufacturing plant; 4, the device can produce centrifugal force by the rotation of a fan, so that the flue gas is guaranteed to be completely mixed without generating back pressure.

Description

(1) Technical field: [0001] The invention relates to a waste gas treatment method and device, in particular to a method for eliminating heavy metals in flue gas and a device for removing heavy metals from nano flue gas. (two) background technology: [0002] Coal-fired power plants are the largest pollution sources of heavy metals (such as mercury and lead) in the air. Mercury and lead pollution will seriously damage the development of children's nervous system and cause serious damage to children's intelligence. In 2011, the head of the US Environmental Protection Agency signed a legal policy on reducing toxic substances in the air, stipulating that the mercury removal rate of all coal-fired and oil-fired generators must reach 91% in 2016. There is about 117 tons of mercury emissions in the United States every year; and each coal-fired power plant in the United States spends at least 6 million to 7 million dollars a year to eliminate mercury emissions, but so far the removal...

Claims

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Application Information

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IPC IPC(8): B01D53/83B01D53/88B01D53/75B01D53/64B01J23/52B01J27/047B01J27/04C01G41/00C01G11/02D06B21/00D06B1/02D06B3/10
CPCB01D53/64B01D53/83B01D53/88B01J23/52B01J27/047
Inventor 傅国琳
Owner 林小晓
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