Gas-liquid-liquid equilibrium data measurement device

A measuring device, gas-liquid technology, applied in the direction of laboratory equipment, investigation stage/state change, chemical instruments and methods, etc., can solve problems such as non-equilibrium vaporization, no phase separator, and blank gas-liquid-liquid balance kettle, etc., to achieve Accelerate the mass transfer process, the experimental operation is simple, the effect of accurate measurement

Inactive Publication Date: 2010-06-09
SUN YAT SEN UNIV
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Problems solved by technology

[0004] 1. The traditional gas-liquid balance tank generally does not have a stirring function, and the two separated liquid phases cannot be fully mixed evenly during the gas-liquid-liquid balance experiment. phase balance
Therefore, the gas-liquid-liquid balance data cannot be accurately determined
[0005] 2. Although some traditional equilibrium kettles are equipped with a stirrer to improve the mass transfer of the liquid phase, it also brings the problem of non-equilibrium vaporization: non-equilibrium gas phase is generated during stirring, and the non-equilibrium gas phase is mixed into the gas phase sample, which affects the accuracy of the measurement results.
[0006] 3. The tradit...

Method used

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Embodiment Construction

[0017] figure 1 It is a structural schematic diagram of an embodiment of a three-cycle gas-liquid balance kettle. In this embodiment, the balance kettle is made of heat-resistant glass. Structurally, the balance kettle is mainly composed of a heating kettle 1, a heater 2, a Cottrell pump 3, a gas-liquid nozzle 4 with a balance column effect, a gas-liquid separation chamber 23, a liquid-liquid phase separation pipe 6, an electromagnet 18, The mixer 10, the stirring chamber 11, the disperser 21, the ultrasonic homogenizer 12, the inner silver-plated vacuum insulation jacket 20 and the gas phase condenser tube 14 are composed of some auxiliary devices, a secondary condenser 16, a quantitative feed Hopper 15, a drying tube 19 and a pressure control system 22. All valves are PTFE glass valves, and all connections are standard ground. Before the experiment, the non-equilibrium gas-phase condensing tube 13 was packed into the grinding port above the mixer 10, and then the feed fun...

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Abstract

The invention discloses a gas-liquid-liquid equilibrium data measurement device. An equilibrium still comprises three circulation loop structures for accelerating the circular mixing of fluid. The liquid phase in a hating still is homogenized by an ultrasonic homogenizer for improving the mass transfer rate and rapidly achieving the equilibrium. The separation is performed through stirring and heating. A liquid-liquid split phase tube is arranged in a gas-liquid separation chamber, so the liquid-liquid split phase experiment condition is the same as the gas-liquid equilibrium condition. The still is used for performing gas-liquid-liquid equilibrium measurement; gas-liquid-liquid three phase samples accurately representing gas-liquid-liquid equilibrium components can be obtained, time consumption is low, the equilibrium components and equilibrium temperature are accurately measured, and the experimental operation is simple and convenient.

Description

technical field [0001] The invention relates to the field of thermodynamic data measuring devices, in particular to a three-cycle ultrasonic gas-liquid-liquid balance device for measuring gas-liquid-liquid balance data under equal pressure conditions. Background technique [0002] The gas-liquid-liquid equilibrium data are the basis of heterogeneous distillation technology, computer simulation calculation, physical property estimation and subsequent distillation process and distillation column design. In the current industrial situation where heterogeneous azeotropic distillation technology is widely used, it is extremely important to obtain accurate gas-liquid-liquid equilibrium data. For the calculation of gas-liquid-liquid equilibrium, although there are many theoretical models that can be used today, their accuracy and versatility are still quite limited, and experimental data must be used to verify them before use. At present, the experimental measurement method is sti...

Claims

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Application Information

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IPC IPC(8): G01N25/12B01L3/00
Inventor 胡松陈清林张冰剑冯志威高学农
Owner SUN YAT SEN UNIV
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