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Online analysis method for determining adsorption efficiency of activated carbon adsorbent

A technology of activated carbon adsorption and adsorption efficiency, which is applied in the direction of analyzing materials, measuring devices, and material separation. It can solve the problems of unable to monitor and verify whether the adsorbent is invalid, unable to detect the adsorption effect of activated carbon, and activated carbon can not purify, etc., to achieve optimization. Timeliness and controllability of monitoring at any time, short detection time, and the effect of ensuring safe and stable operation

Pending Publication Date: 2019-09-20
LIAOCHENG MEISI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Activated carbon has undergone many times of adsorption and regeneration after long-term operation, and its adsorption performance has declined. It is impossible to detect the adsorption effect of activated carbon without stopping the vehicle, and it is impossible to monitor and verify whether the adsorbent is invalid.
In addition, according to operating experience, activated carbon after failure not only fails to purify, but also pollutes the purified gas, so it must be replaced
At present, the replacement of active carbon adsorbents in use can only be replaced regularly based on the data provided by the manufacturer (calculation and inference of the service life of activated carbon adsorbents based on process design parameters).

Method used

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  • Online analysis method for determining adsorption efficiency of activated carbon adsorbent
  • Online analysis method for determining adsorption efficiency of activated carbon adsorbent
  • Online analysis method for determining adsorption efficiency of activated carbon adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Assembling of the absorption tubes: Fill the two dry absorption tubes with a certain amount of trichloromethane absorption solvent respectively, connect them in series with polytetrafluoroethylene tubes, and install a layer of glass wool at the inlet and outlet, connect Mouth sealed.

[0031] (2) Collection of gas samples to be tested at the inlet of the old activated carbon: the sampling port between the compressor 5 outlet pipeline and the adsorption tower 4, open the gas valve to ventilate and replace for 10 minutes, and connect the assembled absorber equipped with quantitative chloroform Pipe 1 and absorption pipe 2 are connected to wet gas flow meter 3, and the remaining gas is returned to adsorption tower 4 to purify the gas; control the gas flow rate to 2.0L / min, continuously ventilate 15.0L, stop ventilating, record the volume and temperature of ventilating, The two series-connected absorption tubes 1 and 2 are sealed, and the sample solution is to be tested...

Embodiment 2

[0047] (1) Assembling of the absorption tubes: Fill the two dry absorption tubes with a certain amount of trichloromethane absorption solvent respectively, connect them in series with polytetrafluoroethylene tubes, and install a layer of glass wool at the inlet and outlet, connect Mouth sealed.

[0048](2) Collection of gas samples to be tested at the new activated carbon inlet: the sampling port between the compressor 5 outlet pipeline and the adsorption tower 4, open the gas valve to ventilate and replace for 10 minutes, connect the assembled absorber equipped with quantitative chloroform Pipe 1 and absorption pipe 2 are connected to wet gas flow meter 3, and the remaining gas is returned to adsorption tower 4 to purify the gas; control the gas flow rate to 2.0L / min, continuously ventilate 20L, stop ventilating, record the venting volume and temperature, and Two series-connected absorption tubes 1 and 2 are sealed, and the sample solution is to be tested.

[0049] (3) Colle...

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Abstract

The invention relates to an online analysis method for determining the adsorption efficiency of an activated carbon adsorbent. The method mainly comprises the following steps of: (1) the assembling of an absorption tube; (2) the collection of activated carbon adsorption tower inlet and outlet to-be-detected gas samples; (3) the establishment of a detection method; and (4) the measurement of the content of organic matters in the inlet and outlet gas and the adsorption rate of the activated carbon. The method has the advantages of simple operation process, short time, low cost and the like. With the online analysis method adopted, the adsorption efficiency of the activated carbon can be analyzed at any time under a condition that a use effect and parking are not affected; the activity of the activated carbon can be verified; it can be ensured that the activated carbon can be timely replaced or regenerated after the activated carbon loses efficiency; and the safe and stable operation of production is guaranteed.

Description

technical field [0001] The invention relates to an analysis method for measuring the activity of a temperature swing adsorption catalyst, in particular to an online verification analysis method for whether the temperature swing adsorption activated carbon of cyclohexanone produced by hydration is deactivated. Background technique [0002] The hydrogen from the cyclohexanol dehydrogenation reactor contains various organic substances such as benzene, cyclohexane, cyclohexene, cyclohexanone, and cyclohexanol, which cannot meet the requirements for the purity of hydrogen required in the subsequent process. After the process pressure is required, the organic substances in it need to be adsorbed and purified by activated carbon to achieve the purpose of purifying and purifying hydrogen. Activated carbon has undergone multiple adsorption regenerations after long-term operation, and its adsorption performance has declined. It is impossible to detect the adsorption effect of activate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/88
CPCG01N30/02G01N30/88G01N2030/025G01N2030/884
Inventor 郭平常凤超张恒浩丁凡张艳超张娜亓秀娟李兵刘冰钟飞赵伟伟李晓晔
Owner LIAOCHENG MEISI NEW MATERIAL TECH CO LTD