High-temperature high-pressure gas-liquid balance testing device and method

A gas-liquid phase balance, high temperature and high pressure technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the inability to meet the determination of gas phase balance data, and achieve the effect of promoting development and ensuring accuracy

Active Publication Date: 2018-02-23
SINOPEC ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a high-temperature and high-pressure gas-liquid phase balance test device to alleviate the technical problem that the gas-liquid phase balance test device in the prior art cannot meet the requirements of measuring gas-phase balance data under high temperature and high pressure.

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  • High-temperature high-pressure gas-liquid balance testing device and method

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Embodiment 1

[0028] figure 1 The structural representation of the high-temperature high-pressure gas-liquid phase equilibrium test device provided for the embodiment of the present invention 1; as figure 1 As shown, the present embodiment provides a high-temperature and high-pressure gas-liquid phase equilibrium test device, including a balance tank 101, a condenser 102 and a buffer tank 103, and the top of the balance tank 101 is provided with a gas phase outlet 104, and the gas phase outlet 104 is connected to the condenser 102 The inlet of the condenser is connected, the outlet of the condenser 102 is connected with the buffer tank 103, the bottom of the balance tank 101 is provided with a liquid phase outlet 105, and the top of the balance tank 101 is provided with a liquid phase inlet 106, and the liquid phase outlet 105 and the liquid phase inlet 106 A liquid phase sampling tube 107 is arranged between them, a liquid phase sampling port 108 is arranged on the liquid phase sampling tu...

Embodiment 2

[0051] This embodiment provides a high-temperature and high-pressure gas-liquid phase equilibrium test method, which is measured by using the high-temperature and high-pressure gas-liquid phase balance test device provided in Example 1, including the following steps:

[0052] (A) adding the liquid to be tested into the equilibrium kettle, heating and heating;

[0053] (B) When the temperature and pressure in the equilibrium tank were kept balanced, sampling was carried out from the gas phase sampling port and the liquid phase sampling port respectively;

[0054] (C) Test the samples taken from the gas phase sampling port and the liquid phase sampling port respectively to obtain the gas-liquid phase equilibrium data of the liquid to be tested.

[0055] The high-temperature and high-pressure gas-liquid phase balance test method provided by the present invention adopts the high-temperature and high-pressure gas-liquid phase balance device provided by the present invention to meas...

Embodiment 3

[0067] This embodiment provides the determination of the gas-liquid phase equilibrium data of the HCl solution with a molar concentration of 1%. This embodiment is measured according to the high-temperature and high-pressure gas-liquid phase equilibrium test method described in Example 2, and different temperatures and different The gas-liquid phase equilibrium data under pressure are shown in Table 1 below, where, y 1 and x 1 is the mole fraction of HCl in the sample.

[0068] Vapor-liquid phase equilibrium data table of 1% HCl solution at different temperatures and pressures

[0069]

[0070] As can be seen from the above table, by adopting the high-temperature and high-pressure gas-liquid phase equilibrium test device provided in Example 1, and using the high-temperature and high-pressure gas-liquid phase equilibrium test method provided in Example 2, it is possible to measure the temperature of highly corrosive HCl solution at 121-184 ° C. , the gas-liquid phase equil...

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Abstract

The invention provides a high-temperature high-pressure gas-liquid balance testing device and method, and relates to the technical field of phase balance testing. The high-temperature high-pressure gas-liquid balance testing device comprises a balance kettle, a condenser and a buffering tank, a gas phase outlet is formed in the top of the balance kettle and is communicated with an inlet of the condenser, an outlet of the condenser is communicated with the buffering tank, a liquid phase outlet is formed in the bottom of the balance kettle, a gas phase inlet is formed in the top of the balance kettle, a liquid phase sampling pipe is arranged between the liquid phase outlet and the liquid phase inlet and is provided with a liquid phase sampling opening, a gas phase inlet is formed in the bottom of the balance kettle, and a gas phase sampling pipe is arranged between the gas phase inlet and the inlet of the condenser and is provided with a gas phase sampling opening. The high-temperature-high-pressure gas-liquid balance testing device and method solve the technical problem that an existing gas-liquid phase balance testing device cannot satisfy measurement of gas-liquid balance data athigh temperature and high pressure and have the advantages that gas-liquid dual circulation is adopted, the gas-liquid phase balance data can be measured within a wide temperature and pressure range,and the data accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of phase balance testing, in particular to a high-temperature and high-pressure gas-liquid phase balance testing device and method. Background technique [0002] Gas-liquid phase equilibrium data is one of the important basic data for the chemical industry to develop new products, develop new processes, reduce energy consumption, and process three wastes. It is also used in the transformation and design of separation process equipment such as rectification, condensation, and evaporation in chemical production. Accurate and reliable gas-liquid equilibrium data are required for innovation and selection of optimal process conditions. The determination of gas-liquid equilibrium data and its technical development have attracted the attention of chemical theory researchers. At present, the gas-liquid phase equilibrium test methods mainly include indirect method and direct method. The indirect method includes dew p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 王宁李朝法于凤昌段永锋张宏飞赵小燕包振宇
Owner SINOPEC ENG GRP CO LTD
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