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Filter membrane for filtering mercury from gaseous fluid

A technology of gaseous fluid and filter membrane, which is applied in monitoring system and filter membrane field for filtering mercury in gaseous fluid, can solve the problems of long analysis time, system error, inability to realize real-time monitoring, etc., and achieve simple operation and reduce system error. Effect

Active Publication Date: 2013-06-05
FOCUSED PHOTONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The sample processing is complex and the operation process is cumbersome
[0005] Sample processing requires the use of toxic and highly corrosive chemical reagents; processes such as digestion and cleaning of sampling lines are cumbersome and easily introduce system errors
[0006] 2) The analysis time is long, and real-time monitoring cannot be realized
[0007] It usually takes more than several hours to analyze a sample, and it is difficult to realize real-time monitoring

Method used

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  • Filter membrane for filtering mercury from gaseous fluid
  • Filter membrane for filtering mercury from gaseous fluid
  • Filter membrane for filtering mercury from gaseous fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] figure 1 A schematic plan view of a filter membrane for filtering mercury in a gaseous fluid according to an embodiment of the present invention is schematically given. Such as figure 1 As shown, the filter membrane used to filter out mercury in gaseous fluids includes:

[0068] There are a first type of membrane and a second type of membrane in the transverse direction of the filter membrane;

[0069] The first type of membrane is used to filter out the first type of mercury in the gaseous fluid; the first type of mercury is any type of particulate mercury, gas-phase oxidized mercury, particulate mercury, and total mercury; The total mercury mentioned above includes particulate mercury, gas-phase oxidized mercury and gas-phase elemental mercury.

[0070] The second type of membrane is used to filter out the second type of mercury in the gaseous fluid, the second type of mercury is particulate mercury, gas-phase oxidized mercury and particulate mercury, and the total...

Embodiment 2

[0077] figure 2 A schematic plan view of a filter membrane for filtering mercury in a gaseous fluid according to an embodiment of the present invention is schematically given. Such as figure 2 As shown, the filter membrane used to filter out mercury in gaseous fluids includes:

[0078] There are a first type of membrane, a second type of membrane and a third type of membrane in the transverse direction of the filter membrane;

[0079] The first type of membrane is used to filter out the first type of mercury in the gaseous fluid; the first type of mercury is any type of particulate mercury, gas-phase oxidized mercury, particulate mercury, and total mercury; The total mercury mentioned above includes particulate mercury, gas-phase oxidized mercury and gas-phase elemental mercury.

[0080] The second type of membrane is used to filter out the second type of mercury in the gaseous fluid, the second type of mercury is particulate mercury, gas-phase oxidized mercury and partic...

Embodiment 3

[0086] image 3 The basic structural diagram of the filter membrane for filtering mercury in the gaseous fluid according to the embodiment of the present invention is schematically given. Such as image 3 As shown, the filter membrane used to filter out mercury in gaseous fluids includes:

[0087] There are first type membrane and second type membrane in the longitudinal direction of described filter membrane, present laminar distribution; The first layer membrane (first type membrane or second type membrane) of filter membrane is discretely distributed, makes first The upper surface of the second membrane layer below the layer is in contact with the gaseous fluid passing through the filter membrane.

[0088] The first type of membrane is used to filter out the first type of mercury in the gaseous fluid; the first type of mercury is any type of particulate mercury, gas-phase oxidized mercury, particulate mercury, and total mercury; The total mercury mentioned above includes...

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Abstract

The invention provides a filter membrane for filtering mercury from gaseous fluid, wherein the filter membrane is provided with a first membrane and a second membrane along the lateral direction or longitudinal direction; the first membrane is used for filtering the first mercury from the gaseous fluid; and the second membrane is used for filtering the second mercury from the gaseous fluid. The invention also provides a monitoring system and a method using the filter membrane to the mercury from gaseous fluid. The monitoring system and the method provided by the invention have the advantages of high detection speed, environmental protection, capability of monitoring multi-state at the same time, and the like.

Description

technical field [0001] The invention relates to mercury filtration, in particular to a filter membrane for filtering mercury in gaseous fluid and a monitoring system and method using the filter membrane. Background technique [0002] Mercury is a highly toxic substance. Even if the mercury content in the environment is very low, it will accumulate into the human body through the food chain, thereby endangering human health. Mercury in atmospheric (or flue gas) fluid generally exists in three states, namely particulate state, gas phase oxidation state and gas phase elemental state. [0003] There are two main types of traditional mercury measurement methods. One is to measure total mercury, such as EPA method 101A. This method is specifically: the gaseous fluid first passes through the glass fiber membrane, and the particulate mercury in the fluid is enriched on the membrane, and then the gaseous fluid The gaseous mercury in the gaseous fluid is enriched in the acidic potass...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/54B01D46/42B01D53/22
Inventor 叶华俊郭生良孙敬文翁兴彪姜雪娇
Owner FOCUSED PHOTONICS
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