Visible sapphire high-pressure phase equilibrium reactor

VLEVisible sapphire high-pressure phase equilibrium reactorIt is a high-pressure reaction equipment designed by Century Senlang Company for gas-liquid or gas-liquid solid phase equilibrium experimental systems. It consists of a fully transparent sapphire reaction kettle, a magnetic impact stirring system, a high and low temperature experimental system, a pressure stabilization system, an inlet system, an inlet system, a variable volume system, a fully automatic control system, and a camera system.

The equilibrium of two-phase systems in chemical thermodynamics research includes gas-liquid equilibrium, gas-solid equilibrium, gas-solid equilibrium, liquid-liquid equilibrium, and liquid-solid equilibrium; Systems with more than two phases include gas-liquid solid equilibrium, vapor-liquid equilibrium, etc. When the system is in phase equilibrium, the temperature and pressure of each phase are the same, and their composition is generally different. The research on phase equilibrium mainly involves experimental measurements of relevant data and the application of phase equilibrium correlation methods to explore the relationship between temperature T, pressure p, and phase composition (molar fractions x, y) at equilibrium, in order to determine the direction of phase change under certain conditions and estimate the magnitude of process driving force based on the degree of deviation from phase equilibrium. Phase equilibrium is one of the theoretical foundations for mass transfer separation and heat mass transfer processes. For example, distillation and absorption utilize different compositions of vapor-liquid or gas-liquid phases in phase equilibrium, and achieve separation of the mixture through interfacial material transfer; Extraction achieves the separation of a mixture based on the difference in solubility of the substance in two immiscible or partially miscible liquid phases; Crystallization utilizes the limitation of solid solubility in liquids to precipitate solids from solutions. These processes all involve the transfer of matter between phases. Studying phase equilibrium can provide a basis for selecting appropriate separation methods.

VLEVisible sapphire high-pressure phase equilibrium reactorIn the calculation of mass transfer equipment (such as distillation equipment, extraction equipment), phase equilibrium data can be used to calculate the equilibrium stage or mass transfer unit number of the equipment. In addition, phase equilibrium research is also used to explore the formation conditions of materials such as glass, ceramics, refractory materials, alloys, etc. The part of the system with the same strength properties is called a phase. There is a clear interface between phases. A phase can be continuous or discontinuous (such as dispersed droplets or grains). A system with only one phase is called a single-phase or homogeneous system, and a system with two or more phases is generally called a multiphase or heterogeneous system.

VLE High Voltage Phase Balance Experimental Device, Model: UC-VLE50

Main functions: Gas liquid equilibrium testing for methane hydrates, supercritical CO2, and other gas-liquid phases;

Advantages: High pressure visibility, adjustable volume, fast gas-liquid phase equilibrium;

Volume: 50-1000ml; Mixing method: magnetic impact type;

Temperature: -40~300 ℃, accuracy ± 0.5 ℃;

Pressure: 0-30MPa, accuracy ± 0.02 MPa.

The study of high-pressure phase equilibrium is generally carried out by the synthesis method, also known as the bubble point dew point method. This method involves placing a mixture in a reaction vessel, changing the pressure or temperature, and stirring to change the phase state of the mixture. VLEVisible sapphire high-pressure phase equilibrium reactorThis method is particularly suitable for high-pressure systems close to the critical point, and can simultaneously measure P-V-T data. The entire 360 degree transparent sapphire is used as the reaction vessel, avoiding local observation space limitations and improving the clarity and accuracy of observing phase transitions. This series of VLEsVisible sapphire high-pressure phase equilibrium reactorIt can be used in magnetic impact stirring systems or swing stirring systems, and the heating method can be interlayer thermal oil heating or air bath, which is very suitable for flow methods, VLEVisible sapphire high-pressure phase equilibrium reactorIt can be used for both flow and static experiments.