Many materials in the high-pressure reactor are hazardous chemicals. If the material belongs to materials with low self ignition point and flash point, once leaked, it will mix with air to form an explosive mixture. If it encounters a fire source (open flame, spark, static electricity, etc.), it is highly likely to cause fire and explosion; Once the material is toxic and leaks, it can lead to poisoning and suffocation; If the material quality is not up to standard, there is also a possibility of explosion. Here are several suggestions for avoiding high-pressure reactor explosions and improving safety, for reference only.
1. Try to prevent mechanical impurities from entering the high-pressure reactor as much as possible. If impurities enter, it may cause some conflicts and uneven heat distribution, which may lead to the reactor splitting or exploding.
2. The oxygen content in the reaction process system should be strictly controlled. The increase in oxygen content in the gas in the process system may lead to the explosion of the high-pressure reactor, generally not exceeding 1ppm.
3. Try to avoid the agitator blades from touching the inner wall of the kettle during design and use. Because if the agitator blades rub against the inner wall of the kettle while rotating at high speed, it will damage the inside of the kettle, and the local temperature inside the kettle will rapidly rise, resulting in uneven heat distribution inside the kettle and a certain probability of causing the high-pressure reaction kettle to rupture or explode.
4. Attention should be paid to heat dissipation of bearing components, especially in the case of long-term operation of high-pressure reactors, to avoid excessive heat conduction to the reactor body, which may cause uneven heat distribution inside the reactor body.
5. Exothermic reactions should be avoided as much as possible due to excessive catalyst or too fast feed rate, to prevent rapid local temperature rise in the kettle that may cause differentiation and explosion. The amount of catalyst should be strictly controlled, and the feeding should be uniform.
6. Regularly check whether the automatic control of the catalyst system instrument or the catalyst pump can work properly, and prevent the use of the reaction kettle in case of malfunction.
In short, it is necessary to strictly follow the normal operating manual and select the correct instruments and catalysts. It is necessary to check whether various instruments are functioning properly before starting the reaction vessel. During the operation of the reaction vessel, the working status of each instrument should be monitored in real time. In case of any malfunction, safety measures should be taken immediately to prevent accidents.
