Method for detecting performance of hydrogen sulfide absorption and elimination solution

A hydrogen sulfide and performance technology, which is applied in the field of detection of hydrogen sulfide absorption and elimination liquid, can solve the problems of poor quantitative degree, no independent gas distribution and detection function, etc., and achieve the effect of simple experimental operation and good repeatability of measurement results

Inactive Publication Date: 2020-05-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems such as no independent gas distribution and detection function, and poor quantitative degree, the present invention provides a method for detecting the performance of hydrogen sulfide absorbing liquid

Method used

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  • Method for detecting performance of hydrogen sulfide absorption and elimination solution

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The high concentration hydrogen sulfide gas used in the experiment is 50000mg / m 3 , the test hydrogen sulfide absorption liquid is a mass fraction of 1.0% sodium carbonate aqueous solution.

[0051] By adjusting the first gas mass flow controller 4 and the second gas mass flow controller 5, using high-pressure nitrogen and 50000mg / m3

[0052] The high-concentration hydrogen sulfide gas is prepared in the gas distribution box 6 to 10000mg / m 3 Hydrogen sulfide gas environment, adjust solenoid valve 8 so that the outlet flow is 0.1L / min, dress 1.0% sodium carbonate aqueous solution 10ml in the reaction tube 13, the concentration of the gas outlet pipe 14 of the reaction tube 13 reaches 500mg / m 3 The time required is 15s.

Embodiment 2

[0054] The high concentration hydrogen sulfide gas used in the experiment is 50000mg / m 3 , The test hydrogen sulfide absorption solution is 3.0% sodium carbonate aqueous solution.

[0055] By adjusting the first gas mass flow controller 4 and the second gas mass flow controller 5, using high-pressure nitrogen and 50000mg / m 3 The high-concentration hydrogen sulfide gas is prepared in the gas distribution box 6 to 10000mg / m 3 Hydrogen sulfide gas environment, adjust solenoid valve 8 so that the outlet flow is 0.1L / min, dress 3.0% sodium carbonate aqueous solution 10ml in reaction tube 13, the concentration of the gas outlet pipe 14 of reaction tube 13 reaches 500mg / m 3 The time required is 36s.

Embodiment 3

[0057] The high concentration hydrogen sulfide gas used in the experiment is 50000mg / m 3 , The test hydrogen sulfide absorption liquid is 30% ethanolamine aqueous solution.

[0058] Through nitrogen mass flow controller and hydrogen sulfide mass flow controller, using nitrogen and 50000mg / m 3 The high-concentration hydrogen sulfide gas is prepared in the gas distribution box 6 to 10000mg / m 3 Hydrogen sulfide gas environment, the electromagnetic valve 8 is adjusted so that the outlet flow is 0.1L / min, the volume of the 30% ethanolamine aqueous solution in the reaction tube 13 is 10ml, and the concentration of the gas outlet pipe 14 of the reaction tube 13 reaches 500mg / m 3 The time required is 973s.

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Abstract

The invention discloses a method for detecting the performance of a hydrogen sulfide absorption and desorption solution. The used device comprises a reaction tube, a gas distribution box, a vacuum pump, a high-pressure nitrogen steel cylinder and a high-concentration hydrogen sulfide steel cylinder. The high-pressure nitrogen steel cylinder, the high-concentration hydrogen sulfide steel cylinder and the vacuum pump are respectively connected to the gas distribution box through pipelines; an electromagnetic valve is arranged on a pipeline for connecting the gas distribution box with the reaction tube, a temperature sensor is arranged in the reaction tube, the temperature sensor is connected to a data control / acquisition system, a hydrogen sulfide concentration online detector is arranged ona pipeline for connecting the upper part of the gas distribution box with the tail gas treatment device, and the hydrogen sulfide concentration online detector is also connected with the reaction tube. The device integrates the functions of automatic gas distribution, reaction elimination, on-line monitoring and tail gas treatment, can quantitatively compare the removal efficiency of different absorption and elimination solutions, can quickly and effectively test the performance of hydrogen sulfide absorption and elimination solutions for removing hydrogen sulfide gas and is simple in experimental operation and good in measurement result repeatability.

Description

technical field [0001] The invention relates to the technical field of the elimination performance of the absorption liquid, in particular to a method for detecting the performance of the absorption liquid of hydrogen sulfide. Background technique [0002] Hydrogen sulfide is a colorless, highly toxic gas with a smell of rotten eggs. When poisoning occurs, hydrogen sulfide enters the alveoli through the respiratory tract and quickly reacts with ferrous ions in hemoglobin to form ferrous sulfide precipitation, which prevents hemoglobin from interacting with the alveoli. The collection of oxygen, eventually lead to human death due to lack of oxygen. Hydrogen sulfide poisoning incidents are sudden and mass, with a high mortality rate. Once it occurs, it will seriously threaten the personal safety of employees and the public, and the impact of secondary disasters will be great, seriously polluting the atmospheric environment, and even destroying the ecological environment. [0...

Claims

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Application Information

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IPC IPC(8): G01N33/00G01N1/38
CPCG01N33/00G01N1/38G01N2001/386
Inventor 闫柯乐肖安山王倩胡绪尧张红星李莹
Owner CHINA PETROLEUM & CHEM CORP
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