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A high-pressure gas-liquid two-phase extraction cycle absorption device

A technology of absorption device and high-pressure gas, which is applied in the direction of sampling device, etc., can solve the problems of cumbersome sampling and analysis, complex structure of sampler, etc., and achieve the effect of fast and accurate sampling, simple structure and safe operation

Active Publication Date: 2015-09-23
JUHUA GROUP TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the sampler is relatively complicated, and the gas phase and liquid phase samples need to be taken separately for analysis. The sampling analysis is cumbersome, and the samples taken cannot accurately reflect the proportion of organic components in the system.

Method used

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  • A high-pressure gas-liquid two-phase extraction cycle absorption device
  • A high-pressure gas-liquid two-phase extraction cycle absorption device
  • A high-pressure gas-liquid two-phase extraction cycle absorption device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Buffer tank 1 is made of stainless steel with an inner cavity volume of 10mL; absorption tank 2 is made of stainless steel with an inner cavity volume of 50mL.

[0032] Connect the sampling pipe 7 to the sampling valve of the perfluoroalkyl iodide reaction kettle, open the first valve 8, and the sample enters the buffer tank 1 from the sampling pipe 7, and when the pressure shown by the first pressure gauge 10 is consistent with the pressure of the reaction kettle The first valve 8 can be closed; the third valve 9 can be opened to allow the sample to flow into the absorption tank 2 through the gas phase pipe 5 of the buffer tank; the temperature of the solvent acetone in the absorption tank 2 is controlled by the cooling tank 3 to be -18°C, and the components in the sample are passed through After the acetone is fully absorbed, open the fourth valve 14, the fifth valve 15, and start the circulation pump 4, so that the acetone flows into the buffer tank 1, and then into t...

Embodiment 2

[0034] Buffer tank 1 is made of polytetrafluoroethylene with an inner cavity volume of 20mL; absorption tank 2 is made of polytetrafluoroethylene with an inner cavity volume of 150mL.

[0035] Connect the sampling pipe 7 with the sampling valve of the heptafluorobromopropane reaction kettle, open the first valve 8, and the sample enters the buffer tank 1 from the sampling pipe 7, and when the pressure displayed by the first pressure gauge 10 is consistent with the pressure of the reaction kettle Close the first valve 8; open the third valve 9, so that the sample flows into the absorption tank 2 through the buffer tank gas phase pipe 5; the temperature of the solvent ethyl acetate in the absorption tank 2 is controlled by the cooling tank 3 to be -20 ° C, and the components in the sample After being fully absorbed by ethyl acetate, open the fourth valve 14, the fifth valve 15, and start the circulation pump 4, so that the ethyl acetate flows into the buffer tank 1 and then into ...

Embodiment 3

[0037] Buffer tank 1 is made of stainless steel with an inner cavity volume of 15mL; absorption tank 2 is made of stainless steel with an inner cavity volume of 100mL.

[0038] Connect the sampling tube 7 to the sampling valve of the perfluoroalkyl ethyl iodide reactor, open the first valve 8, and the sample enters the buffer tank 1 from the sampling tube 7, when the pressure displayed by the first pressure gauge 10 is consistent with the reactor pressure The first valve 8 can be closed at the same time; the third valve 9 is opened to allow the sample to flow into the absorption tank 2 through the buffer tank gas phase pipe 5; the temperature of the solvent acetone in the absorption tank 2 is controlled by the cooling tank 3 to be -19 ° C, and the group in the sample After the acetone is fully absorbed, open the fourth valve 14, the fifth valve 15, and start the circulation pump 4, so that the acetone flows into the buffer tank 1, and then into the absorption tank 2 to achieve ...

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Abstract

The invention discloses a high-pressure gas-liquid two-phase sampling circulating absorption device. The device comprises a buffer groove, an absorption groove, a cooling groove and a circulating pump, and is characterized in that the top of the buffer groove is connected with the top of the absorption groove through an air-phase pipe of the buffer groove; the absorption groove is arranged in the cooling groove; the bottom of the absorption groove is connected with the bottom of the buffer groove through a liquid outlet pipe of the absorption groove; and the circulating pump is arranged in the liquid outlet pipe of the absorption groove. The high-pressure gas-liquid two-phase sampling circulating absorption device has the advantages of being simple in structure, safe to operate, quick and accurate in sampling, can be used for accurately reflecting the content of organic components in a reaction system, can be widely applied to the fields requiring gas-liquid two-phase sampling tests for research and detection in various industries, and has good application prospect.

Description

technical field [0001] The invention relates to experimental auxiliary equipment, in particular, the invention relates to a high-pressure gas-liquid two-simultaneous absorption cycle absorption device. Background technique [0002] Safe, simple and convenient sampling is required in chemical production, so a sampling device that can accurately reflect the proportion of each component in the system and simplify the analysis and detection process is needed. However, some synthetic reaction systems are in a state of high temperature and high pressure, and gas-liquid two-phase coexistence. Reactions involving high temperature and high pressure in the reactor, such as the synthesis reaction of perfluoroalkyl iodide (RfI), have many components in the reaction system, a wide range of boiling points, and the coexistence of gas-liquid two-phase, which leads to traditional sampling There are certain difficulties in the analysis. [0003] Chinese patent announcement number CN2816787Y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/10G01N1/22
Inventor 唐春玲钟军张庆华
Owner JUHUA GROUP TECH CENT
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