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Analytic method and device for gas with coke tar particles

An analysis device and gas technology, applied in the field of gas analysis, can solve problems such as damage to precise analysis instruments, increase of measurement errors of gas analysis instruments, and easy clogging of filters, so as to improve the use efficiency, prolong the cleaning period, and improve the measurement accuracy. Effect

Active Publication Date: 2010-10-13
FOCUSED PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Directly using a solid-state filter to filter viscous tar particles mainly has the following disadvantages: if the pores of the filter are too fine, the viscous tar particles will easily block the filter, which will cause the downstream gas analysis instrument to fail to obtain the measured gas
If the pores of the filter are too thick, the downstream gas still contains a large amount of tar particles, which will cause the measurement error of the downstream gas analysis instrument to increase or even be damaged
The conventional solution is: use a filter with high filtration precision, and then use high-temperature steam to back-flush the solid-state filter every once in a while to clean up the tar particles attached to the filter; such cleaning is usually not thorough enough, and after relatively After a long period of use, the solid filter needs to be removed and cleaned or replaced with an organic solvent
This method not only has a large maintenance workload, but also has low efficiency in the use of downstream gas analysis instruments; moreover, some tiny viscous tar particles will pass through the filter, thereby polluting downstream analysis instruments, which not only further increases the maintenance workload , serious damage to precision analytical instruments

Method used

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  • Analytic method and device for gas with coke tar particles
  • Analytic method and device for gas with coke tar particles
  • Analytic method and device for gas with coke tar particles

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a device for realizing the analysis method of gas with tar particles of the present invention is applied in the field of coking, and the analysis device includes a tar particle removal device and an analysis instrument 3 . The tar particle removal device includes a first sealed container 1 and a second sealed container 2 . The analysis instrument 3 is a semiconductor laser absorption spectrum analysis instrument.

[0028] An air inlet pipe 11 and an air outlet pipe 12 are installed on the first airtight container 1, and a first-stage liquid 13 and a filter device 14 are installed inside. The first-stage liquid 13 in this embodiment uses water, and the filter device 14 adopts a flat screen filter , installed under the liquid level of the first-stage liquid 13 . A hollow interlayer 17 is provided on the periphery of the first sealed container 1 , and high-temperature steam passes through the hollow interlayer 17 for heating the first-stage liq...

Embodiment 2

[0036] Such as figure 2 As shown, a device for realizing the analysis method of gas with tar particles of the present invention is applied in the field of iron and steel. The difference from Example 1 is that no interlayer is provided outside the second sealed container 2 , filter device is no longer installed in the second sealed container 2, and the second-stage liquid 29 is carbon tetrachloride.

[0037] This embodiment also discloses a gas analysis method with tar particles, that is, the working process of the above-mentioned analysis device. The method includes the following steps:

[0038] A. the specific process is identical to step a in Example 1;

[0039] b. gas with residual tar (mainly light oil) is passed into the second-stage liquid 23 in the second sealed container 2, and the residual tar in the gas is dissolved in the second-stage liquid 29, thereby removing The tar particles in the gas are removed; the gas is discharged from the outlet pipe 22;

[0040] c. ...

Embodiment 3

[0042] A device for realizing the analysis method of gas with tar particles of the present invention, which is applied in the iron and steel field. The difference from Example 2 is that a filter device is installed under the liquid surface in the second sealed container, and the filter The device adopts a flat filter net, and the filtering accuracy is higher than that of the filtering device in the first sealed container.

[0043] This embodiment also discloses a gas analysis method with tar particles, that is, the working process of the above-mentioned analysis device. The method includes the following steps:

[0044] A. concrete process is identical with the step a in embodiment 2;

[0045] b. The gas with residual tar (the main component is light oil) is passed into the second-stage liquid in the second sealed container, and the residual tar in the gas is dissolved in the second-stage liquid, a small amount of which has not had time to dissolve Filtered by the filtering de...

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Abstract

A method for analyzing gas with tar particles includes leading gas to be analyzing into the first stage liquid contained in sealed container, filtering gas when it is discharged out from the first stage liquid and sending gas with residual tar into the second stage liquid contained in sealed container, discharging gas out from the second stage liquid to remove off residual tar then leading gas into analyzer for obtaining parameter of said gas. The device used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a gas analysis method and device, in particular to a gas analysis method and device with tar particles. Background technique [0002] At present, in the fields of iron and steel, coking, etc., it is usually necessary to measure the concentration of gas components such as oxygen and carbon monoxide in the process gas. However, in the above-mentioned application fields, the gas in some process pipelines contains a large amount of tar particles, and the viscous tar particles in the measured gas will adhere to various parts of the analytical instrument, resulting in increased measurement errors or even failure to measure. [0003] The composition of the tar is extremely complex, but can be roughly divided into light oil and heavy oil; heavy oil includes phenol oil, naphthalene oil, wash oil, monoanthracene oil, dianthracene oil and asphalt, etc., and the boiling point of light oil is lower than that of heavy oil. [0004] In view ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/34G01N1/22
Inventor 谢正春刘罡王健
Owner FOCUSED PHOTONICS