Features of supercritical co2 reactor
When the supercritical CO2 reaction equipment (supercritical co2 reactor) is in a carbon dioxide supercritical environment, the molecular chain of the material is cut and degraded, auxiliary stirring device accelerates the speed of reaction degradation.
Supercritical CO2 reaction equipment is mainly used in research departments in the fields of chemical engineering and new materials.
Supercritical co2 reactor photos
- Working pressure: 30MPa;
- Working temperature: room temperature～150℃, temperature control accuracy ±1℃;
- Reaction kettle: 500ml; material 316L
- High and low temperature tank: 2000kcal/h;
- Heating power: 1.5Kw;
- Power source: 220V, 50Hz;
Components of supercritical co2 reactor
500mL visible supercritical CO2 reaction equipment is mainly composed of the following parts:
Visible main body of the reactor; Stirring system; Temperature measurement and control system of the reactor;Manual liquid adding system;Refrigeration system;Purifier;Carbon dioxide injection pump;Preheating temperature control system;Safety explosion-proof system;Image system; Computer acquisition system;Electric control system and cabinet bracket, etc.
Main body of the reacto
The front and rear sides of the reaction kettle are made of high-pressure quartz glass (German imported glass).
The reaction kettle is made of 316L material, which can prevent corrosion and high temperature resistance.
It can also prevent the corrosion of metal materials from polluting the quality of the reaction medium and causing analytical errors in the experiment.
Considering the pressure-bearing, sealing, corrosion resistance and operation aspects of the kettle body, the flange end face sealing form of the reactor, the sealing material, the high temperature resistant kettle, and the overall processing process of the reactor body, first go Considering the pressure-bearing, sealing, corrosion resistance and operation aspects of the kettle body, the flange end face sealing form of the reactor, the sealing material, the high temperature resistant kettle, and the overall processing process of the reactor body, first go through the overall forging process to form a blank, and then heat treatment to ensure the reaction the pressure and temperature resistance and strength of the kettle are processed by turning, milling, planing, grinding, drilling, etc.,
Reactor stirring system
The stirring motor adopts a DC servo motor and can be controlled separately or connected to a computer.
The speed can be adjusted continuously, the core part of the equipment under the stirring motor is a strong magnetic coupling stirrer, which is a transmission device that selects permanent magnet materials for strong magnetic coupling stirring.
Completely solve the problem of failure and leakage of mechanical seal and packing seal.
The inner and outer magnets are made of two powerful permanent magnets, which are mutually positioned to act on the axial rotation and traction.
The motor drives the outer magnetic steel. The strong magnetic force of the outer magnetic steel passes through the sealed cover made of stainless steel. The strong magnetic force self-positions and couples the inner magnetic steel. The inner magnetic steel drives the shaft and the stirring blade to complete the static sealing and stirring process.
Reaction kettle temperature measurement and control system
In order to ensure the accuracy of the heating temperature measurement and control of the equipment and reduce the intensity of manual control, the device adopts PID digital control temperature measurement and control.
During use, the temperature is set according to the use temperature requirements, after the setting is completed, the system performs the temperature control automatic control.
- If the set temperature is not reached, the heating program will be carried out.
- When the set temperature is reached, the system will control the heating automatically.
- The whole process is automatically completed without manual operation.
- Temperature control range: normal temperature～150℃
- Temperature control accuracy: ±1℃
After the refrigeration system liquefies the carbon dioxide gas, it is convenient for high-pressure gas injection.
Because the current direct gas pressurization is restricted by the large change of the gas volume expansion rate, it is difficult to achieve high-pressure continuous injection of gas.
The flow rate of some gas booster pumps on the market is small, and the design comparison of high-pressure injection after cooling Stable and reliable.
The refrigeration unit adopts imported core components and increases the refrigeration area to improve efficiency. It runs without noise.
The specific technical indicators are as follows:
- Cooling capacity: 2000kcal/h
- Cooling method: air-cooled, sealed cycle
For storing liquid carbon dioxide, 2L/16MPa.
Carbon dioxide plunger pump
As the main component of the system for high-pressure injection, the CO2 high-pressure metering pump is mainly composed of a motor, a frequency conversion speed control system, an electrode point pressure gauge, a speed change mechanism, a volume adjustment mechanism, a safety valve and a liquid cylinder block.
The motor power is driven by the cam to reciprocate the bow frame and the sliding rod through the speed change mechanism.
The plunger is installed on the top of the sliding rod, and the plunger is linked to reciprocate. Through the function of the one-way valve, the suction and discharge process is completed. The displacement is indicated by the adjustment meter. T
he adjustment handwheel is rotated to change the reciprocating stroke to control the flow rate.
- Working pressure: 50 MPa
- Maximum displacement: 4L/h
- Measurement accuracy: 1%
Preheating temperature measurement and control system
Because the system requires a high temperature, the fluid is heated by electric heating, and the high-pressure conveying pipeline is coiled and heated, which not only increases the heating area, but also prolongs the heating time, ensuring extremely high heat exchange efficiency.
Use PID digital control temperature measurement and control. During use, set the temperature according to the use temperature requirements.
After the setting is completed, the system will automatically control the temperature.
If the set temperature is not reached, the heating program will be performed.
When setting the temperature, the system automatically controls the heating, and the whole process is automatically completed without manual operation.
- Heating power: 1.5kW
- Heating temperature: normal temperature～150℃
- Temperature control accuracy: ±1℃
When the system is running, the pipeline is equipped with thermal insulation accessories, on the one hand, the cold fluid is properly protected to prevent the hot cavitation effect;
On the other hand, the hot fluid is thermally insulated to ensure the stable temperature of the fluid entering the next process And accurate.
Spiral structure, the inside is wound into a spiral by high-pressure pipelines, and the outside is coiled and welded by stainless steel plates.
- The cooling water pressure is not more than 0.5MPa.
- After the cooler is cooled, the temperature can be reduced to below 100℃.
- Used under normal pressure, volume 0.5 L,
- Mainly used to separate the mixture of gas and liquid, and the material is 316L.
Back pressure control valve
Mainly used to control the pressure of the main reactor, the maximum working pressure is 50MPa, the quantity is 1 set, the material is 316L.
High-precision back pressure control valve is adopted.
Safety explosion-proof system
The safety auxiliary system includes a one-way valve and a safety valve, a vent valve and the above-mentioned electric contact instrument.
To ensure the stable operation of the system under the high-pressure environment, when the pressure is higher than the set protection pressure, the safety valve is activated to safely relieve the pressure of the system. With the use of the electric contact instrument, the device has double safety protection.
Computer acquisition system
The device has a computer automatic collection function, and automatically controls the data curve of the pump, temperature, pressure, and pressure.
The image acquisition system automatically saves the experimental data to the experimental process database to facilitate future analysis and processing of the experimental data.
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